ECE 6570 Class01
•
1 like•1,272 views
The document discusses the course ECE 6570 Telecomm Security Protocols. It defines telecommunications, protocols, and security. It outlines the schedule and topics to be covered in the course, including telecommunications, protocols, and security over three sections. It also describes the grading breakdown and homework assignments.
Report
Share
Report
Share
Recommended
9517ijnsa03
VoIP (Voice over Internet Protocol) is used for peer-to-peer or multi-points communications. SRTP (Secure Real-Time protocol) is used for peer-to-peer communications which are no longer suitable when you want to do multi-point of VoIP. SRTP uses DH (Diffie Hellman) for key exchange but does not make the certification. This means that SRTP does not guarantee non-repudiation service and presents security vulnerabilities during exchanges of keys. In this work, we propose ECMSRTP (Elliptic curve Multi-point Secure Real Time Protocol) which is a new VoIP security protocol for multi-point communications. It uses the certification mechanism, ensures non-repudiation and makes encryption using El-Gamal based on elliptic curves. Performance analysis shows that this new protocol has a latency time better than SRTP. It has a complexity of O(n2) for key exchange against O(n ) for SRTP, O(n2) for encryption against O(2n) for SRTP and O() for signature against O(n2) for SRTP.
Jitsi
Jitsi is a free and open-source multiplatform application that provides voice, video calling, and instant messaging capabilities across Windows, Linux, Mac OS X and Android devices. It uses protocols like SIP, XMPP and OSCAR to support communications and supports features like direct media connections, file transfers, and both voice and video calls. Jitsi has a modular architecture that uses the OSGi framework and separates functionality into services and protocol implementations to provide flexibility and cross-platform compatibility. It implements various security measures like encrypted chat, call encryption with SRTP and ZRTP, and authorization controls to manage communication between authorized clients.
Core Values Decision Sept
The document discusses network packet reconstruction technology for computer forensics and information security. It summarizes Decision Group's product offerings which allow capturing, organizing, and replaying network packets for analysis. It also outlines their research and development history and customer base.
如何做報告 (How to make a presentation?)
The document provides tips on how to give presentations. It discusses listening to reports to learn, understanding your audience, controlling your time, and preparing content. Key points include observing how others organize and present, considering what the audience already knows, and maintaining consistent tenses in an English report. The formatting of text and paragraphs should also be aligned properly. Overall, presentation skills demonstrate personal organization and expression abilities.
Profinet of Things -Derek Lane
This document summarizes Derek Lane's presentation on PROFINET for IoT, IIoT, and Industry 4.0. The presentation discusses how PROFINET supports the Industrial Internet of Things through features like data access, uptime, and open standards. It also covers trends like how big data is analyzed in the cloud and how technologies like PROFINET and OPC UA enable industrial connectivity and communication in industrial automation environments.
Cybersecurity Tutorial | Demo On Man In The Middle Attack | Cybersecurity Tra...
** Cyber Security Course: https://www.edureka.co/cybersecurity-certification-training **
This "Cybersecurity tutorial" ppt presented by edureka gives an in-depth information about the Cyber Security world and talks about its basic concepts. Below are the topics covered in this tutorial:
1. Packet structure
2. Network architecture
3. Addressing
4. IP/MAC
5. Firewalls
6. Symmetric Cryptography
7. Public key Cryptography
Cybersecurity Training Playlist: https://bit.ly/2NqcTQV
Telecomm companies
This document lists 39 telecommunications companies operating in Saudi Arabia. It provides the company names along with their locations and contact information. The companies include major carriers like STC, Mobily, and Zain as well as smaller firms involved in various telecom services and solutions.
Networking and Telecomunications
This document outlines the aims and contents of an introduction to computer science course on networking and telecommunications. The course will describe the technology that enables telecommunications, discuss local and wide area networks, online communication methods like email and instant messaging, and trends in telecommunications including wireless technologies. The contents will include the basic anatomy of networks, communication software, and an overview of email, instant messaging, and other online communication tools and services.
Recommended
9517ijnsa03
VoIP (Voice over Internet Protocol) is used for peer-to-peer or multi-points communications. SRTP (Secure Real-Time protocol) is used for peer-to-peer communications which are no longer suitable when you want to do multi-point of VoIP. SRTP uses DH (Diffie Hellman) for key exchange but does not make the certification. This means that SRTP does not guarantee non-repudiation service and presents security vulnerabilities during exchanges of keys. In this work, we propose ECMSRTP (Elliptic curve Multi-point Secure Real Time Protocol) which is a new VoIP security protocol for multi-point communications. It uses the certification mechanism, ensures non-repudiation and makes encryption using El-Gamal based on elliptic curves. Performance analysis shows that this new protocol has a latency time better than SRTP. It has a complexity of O(n2) for key exchange against O(n ) for SRTP, O(n2) for encryption against O(2n) for SRTP and O() for signature against O(n2) for SRTP.
Jitsi
Jitsi is a free and open-source multiplatform application that provides voice, video calling, and instant messaging capabilities across Windows, Linux, Mac OS X and Android devices. It uses protocols like SIP, XMPP and OSCAR to support communications and supports features like direct media connections, file transfers, and both voice and video calls. Jitsi has a modular architecture that uses the OSGi framework and separates functionality into services and protocol implementations to provide flexibility and cross-platform compatibility. It implements various security measures like encrypted chat, call encryption with SRTP and ZRTP, and authorization controls to manage communication between authorized clients.
Core Values Decision Sept
The document discusses network packet reconstruction technology for computer forensics and information security. It summarizes Decision Group's product offerings which allow capturing, organizing, and replaying network packets for analysis. It also outlines their research and development history and customer base.
如何做報告 (How to make a presentation?)
The document provides tips on how to give presentations. It discusses listening to reports to learn, understanding your audience, controlling your time, and preparing content. Key points include observing how others organize and present, considering what the audience already knows, and maintaining consistent tenses in an English report. The formatting of text and paragraphs should also be aligned properly. Overall, presentation skills demonstrate personal organization and expression abilities.
Profinet of Things -Derek Lane
This document summarizes Derek Lane's presentation on PROFINET for IoT, IIoT, and Industry 4.0. The presentation discusses how PROFINET supports the Industrial Internet of Things through features like data access, uptime, and open standards. It also covers trends like how big data is analyzed in the cloud and how technologies like PROFINET and OPC UA enable industrial connectivity and communication in industrial automation environments.
Cybersecurity Tutorial | Demo On Man In The Middle Attack | Cybersecurity Tra...
** Cyber Security Course: https://www.edureka.co/cybersecurity-certification-training **
This "Cybersecurity tutorial" ppt presented by edureka gives an in-depth information about the Cyber Security world and talks about its basic concepts. Below are the topics covered in this tutorial:
1. Packet structure
2. Network architecture
3. Addressing
4. IP/MAC
5. Firewalls
6. Symmetric Cryptography
7. Public key Cryptography
Cybersecurity Training Playlist: https://bit.ly/2NqcTQV
Telecomm companies
This document lists 39 telecommunications companies operating in Saudi Arabia. It provides the company names along with their locations and contact information. The companies include major carriers like STC, Mobily, and Zain as well as smaller firms involved in various telecom services and solutions.
Networking and Telecomunications
This document outlines the aims and contents of an introduction to computer science course on networking and telecommunications. The course will describe the technology that enables telecommunications, discuss local and wide area networks, online communication methods like email and instant messaging, and trends in telecommunications including wireless technologies. The contents will include the basic anatomy of networks, communication software, and an overview of email, instant messaging, and other online communication tools and services.
AbstractVoice over Internet Protocol (VoIP) is an advanced t.docx
Abstract
Voice over Internet Protocol (VoIP) is an advanced telecommunication technology which transfers the voice/video over
high speed network that provides advantages of flexibility, reliability and cost efficient advanced telecommunication
features. Still the issues related to security are averting many organizations to accept VoIP cloud environment due to
security threats, holes or vulnerabilities. So, the novel secured framework is absolutely necessary to prevent all kind of
VoIP security issues. This paper points out the existing VoIP cloud architecture and various security attacks and issues
in the existing framework. It also presents the defense mechanisms to prevent the attacks and proposes a new security
framework called Intrusion Prevention System (IPS) using video watermarking and extraction technique and Liveness
Voice Detection (LVD) technique with biometric features such as face and voice. IPSs updated with new LVD features
protect the VoIP services not only from attacks but also from misuses.
A Comprehensive Survey of Security Issues and
Defense Framework for VoIP Cloud
Ashutosh Satapathy* and L. M. Jenila Livingston
School of Computing Science and Engineering, VIT University, Chennai - 600127, Tamil Nadu, India;
[email protected], [email protected]
Keywords: Defense Mechanisms, Liveness Voice Detection, VoIP Cloud, Voice over Internet Protocol, VoIP Security Issues
1. Introduction
The rapid progress of VoIP over traditional services is
led to a situation that is common to many innovations
and new technologies such as VoIP cloud and peer to
peer services like Skype, Google Hangout etc. VoIP is the
technology that supports sending voice (and video) over
an Internet protocol-based network1,2. This is completely
different than the public circuit-switched telephone net-
work. Circuit switching network allocates resources to
each individual call and path is permanent throughout
the call from start to end. Traditional telephony services
are provided by the protocols/components such as SS7, T
carriers, Plain Old Telephone Service (POTS), the Public
Switch Telephone Network (PSTN), dial up, local loops
and anything under International Telecommunication
Union. IP networks are based on packet switching and
each packet follows different path, has its own header and
is forwarded separately by routers. VoIP network can be
constructed in various ways by using both proprietary
protocols and protocols based on open standards.
1.1 VoIP Layer Architecture
VoIP communication system typically consist of a front
end platform (soft-phone, PBX, gateway, call manager),
back end platform (server, CPU, storage, memory, net-
work) and intermediate platforms such as VoIP protocols,
database, authentication server, web server, operating sys-
tems etc. It is mainly divided into five layers as shown in
Figure1.
1.2 VoIP Cloud Architecture
VoIP cloud is the framework for delivering telephony
services in which resourc.
AbstractVoice over Internet Protocol (VoIP) is an advanced t.docx
Abstract
Voice over Internet Protocol (VoIP) is an advanced telecommunication technology which transfers the voice/video over
high speed network that provides advantages of flexibility, reliability and cost efficient advanced telecommunication
features. Still the issues related to security are averting many organizations to accept VoIP cloud environment due to
security threats, holes or vulnerabilities. So, the novel secured framework is absolutely necessary to prevent all kind of
VoIP security issues. This paper points out the existing VoIP cloud architecture and various security attacks and issues
in the existing framework. It also presents the defense mechanisms to prevent the attacks and proposes a new security
framework called Intrusion Prevention System (IPS) using video watermarking and extraction technique and Liveness
Voice Detection (LVD) technique with biometric features such as face and voice. IPSs updated with new LVD features
protect the VoIP services not only from attacks but also from misuses.
A Comprehensive Survey of Security Issues and
Defense Framework for VoIP Cloud
Ashutosh Satapathy* and L. M. Jenila Livingston
School of Computing Science and Engineering, VIT University, Chennai - 600127, Tamil Nadu, India;
[email protected], [email protected]
Keywords: Defense Mechanisms, Liveness Voice Detection, VoIP Cloud, Voice over Internet Protocol, VoIP Security Issues
1. Introduction
The rapid progress of VoIP over traditional services is
led to a situation that is common to many innovations
and new technologies such as VoIP cloud and peer to
peer services like Skype, Google Hangout etc. VoIP is the
technology that supports sending voice (and video) over
an Internet protocol-based network1,2. This is completely
different than the public circuit-switched telephone net-
work. Circuit switching network allocates resources to
each individual call and path is permanent throughout
the call from start to end. Traditional telephony services
are provided by the protocols/components such as SS7, T
carriers, Plain Old Telephone Service (POTS), the Public
Switch Telephone Network (PSTN), dial up, local loops
and anything under International Telecommunication
Union. IP networks are based on packet switching and
each packet follows different path, has its own header and
is forwarded separately by routers. VoIP network can be
constructed in various ways by using both proprietary
protocols and protocols based on open standards.
1.1 VoIP Layer Architecture
VoIP communication system typically consist of a front
end platform (soft-phone, PBX, gateway, call manager),
back end platform (server, CPU, storage, memory, net-
work) and intermediate platforms such as VoIP protocols,
database, authentication server, web server, operating sys-
tems etc. It is mainly divided into five layers as shown in
Figure1.
1.2 VoIP Cloud Architecture
VoIP cloud is the framework for delivering telephony
services in which resourc ...
AbstractVoice over Internet Protocol (VoIP) is an advanced t.docx
Abstract
Voice over Internet Protocol (VoIP) is an advanced telecommunication technology which transfers the voice/video over
high speed network that provides advantages of flexibility, reliability and cost efficient advanced telecommunication
features. Still the issues related to security are averting many organizations to accept VoIP cloud environment due to
security threats, holes or vulnerabilities. So, the novel secured framework is absolutely necessary to prevent all kind of
VoIP security issues. This paper points out the existing VoIP cloud architecture and various security attacks and issues
in the existing framework. It also presents the defense mechanisms to prevent the attacks and proposes a new security
framework called Intrusion Prevention System (IPS) using video watermarking and extraction technique and Liveness
Voice Detection (LVD) technique with biometric features such as face and voice. IPSs updated with new LVD features
protect the VoIP services not only from attacks but also from misuses.
A Comprehensive Survey of Security Issues and
Defense Framework for VoIP Cloud
Ashutosh Satapathy* and L. M. Jenila Livingston
School of Computing Science and Engineering, VIT University, Chennai - 600127, Tamil Nadu, India;
[email protected], [email protected]
Keywords: Defense Mechanisms, Liveness Voice Detection, VoIP Cloud, Voice over Internet Protocol, VoIP Security Issues
1. Introduction
The rapid progress of VoIP over traditional services is
led to a situation that is common to many innovations
and new technologies such as VoIP cloud and peer to
peer services like Skype, Google Hangout etc. VoIP is the
technology that supports sending voice (and video) over
an Internet protocol-based network1,2. This is completely
different than the public circuit-switched telephone net-
work. Circuit switching network allocates resources to
each individual call and path is permanent throughout
the call from start to end. Traditional telephony services
are provided by the protocols/components such as SS7, T
carriers, Plain Old Telephone Service (POTS), the Public
Switch Telephone Network (PSTN), dial up, local loops
and anything under International Telecommunication
Union. IP networks are based on packet switching and
each packet follows different path, has its own header and
is forwarded separately by routers. VoIP network can be
constructed in various ways by using both proprietary
protocols and protocols based on open standards.
1.1 VoIP Layer Architecture
VoIP communication system typically consist of a front
end platform (soft-phone, PBX, gateway, call manager),
back end platform (server, CPU, storage, memory, net-
work) and intermediate platforms such as VoIP protocols,
database, authentication server, web server, operating sys-
tems etc. It is mainly divided into five layers as shown in
Figure1.
1.2 VoIP Cloud Architecture
VoIP cloud is the framework for delivering telephony
services in which resourc.
Voip
The document provides an overview of Voice over IP (VoIP) including its benefits and requirements. VoIP allows phone calls to be made over an IP network like the internet rather than the traditional public switched telephone network. It provides benefits like reduced costs and integrated services. However, deploying VoIP requires addressing requirements around services, quality of service, security, billing and network interconnection to provide equivalence to the PSTN. The document also discusses protocols used for VoIP like OSI and layers of the OSI model.
VoIP Research Paper
This document summarizes a research paper on VoIP security. It discusses two important VoIP protocols, SIP and H.323, and analyzes their security features. It also defines new functionality for negotiating security mechanisms between SIP entities. Several security issues are identified for VoIP, such as denial of service attacks. Solutions to improve VoIP security include encryption at endpoints, using SRTP, better scheduling, and resolving NAT/IPsec incompatibilities.
Voice over IP (VOIP) Security Research- A Research
This document summarizes research on Voice over IP (VoIP) security. It begins with an overview of SIP (Session Initiation Protocol), a commonly used VoIP standard, and a taxonomy of VoIP security threats. It then surveys existing research on VoIP security classified according to the threat categories. The research covers threats like eavesdropping, denial of service attacks, toll fraud, and spam over IP telephony (SPIT). Approaches studied include encryption, authentication, reputation systems, audio fingerprinting, and Turing tests to detect automated SPIT callers. The goal is to identify gaps and guide future work on analyzing VoIP attackers and improving the security and resilience of VoIP systems.
Open Source Telecom Software Landscape by Alan Quayle
There are tens of successful Open Source Telecom Software projects, with vibrant communities supporting them. Asterisk, the most successful and longest running is 20 years old. We heard from them earlier in the agenda.
We’ll review the many other projects to help people understand the depth, breadth and rapidly evolving nature of these projects. As we’ll as some of the new projects like Drachtio.org, and used recently at TADHack-mini Orlando Online 2020, for the hack SMB Reschedule.
We’ll also review the results from an anonymous survey of open source telecom software. Comparing the different projects, the preferred application areas of the projects, common issues and solutions, sharing where the industry sees these projects in 5 years’ time.
How does VOIP work diagram
Voice over Internet Protocol (VoIP) is replacing legacy telephone networks by carrying digitized voice in IP data packets over data networks. This chapter introduces VoIP, comparing it to legacy telephone networks, and discusses VoIP standards and protocols. It also introduces WiMAX networks and discusses supporting QoS for multimedia like VoIP over WiMAX. The objectives are to guarantee QoS for multiple service classes over WiMAX and improve VoIP performance. Simulation using OPNET Modeler will analyze VoIP traffic and QoS parameters over WiMAX.
Abdullah Al Mamun 062507056
This document discusses a fraud monitoring system for voice over internet protocol (VoIP) telephony. It begins with an introduction to VoIP and defines fraud. It then discusses the history of VoIP and how VoIP connections work. Key points discussed include quality of service requirements, protocols used in VoIP like SIP and H.323, and security challenges like dynamic addressing and firewalls. The document examines how a fraud management system could address these security issues to help secure VoIP networks.
NGNlab - The Deployment of an Open-Source Infrastructure
NGNlab is an open-source next generation network infrastructure deployed at the Slovak University of Technology that provides communication services using only free and open-source software. It includes a complete SIP-based infrastructure with services like registrar, proxy, conferencing, and integrated voice mail. The infrastructure can function as a small VoIP operator. It also implements an IMS core with presence management and IPTV capabilities. All software used is open-source, including the operating system, virtualization software, SIP server, and IMS/IPTV solutions. The infrastructure provides a platform for research and understanding telecommunications standards in a hands-on environment using customizable open-source software.
A Deep Dive in the World of IT Networking (Part 2)
For a successful career in Information Technology, a strong foundation of basic networking concepts is a must. Networking technology allows for the exchange of data between large and small information systems used primarily by various businesses.
Learn more about:
» OSI Model
» Networking Protocol
» TCP Model
» Networking and data security
3G Wireless Access, Abstract
This document discusses digital security and the need for security measures when connecting corporate computer networks to the internet. It notes that internet-based technologies like VPNs, powerline communications, satellite communications, and wireless networks increasingly connect networks globally. However, more malicious actors are finding ways to infiltrate systems through technology. While the internet is essential, there are cybersecurity risks to consider. Digital security aims to protect digital identities and assets by implementing tools, policies, and procedures to secure technology and data in online and mobile environments.
Voip on Wimax
This research work investigates and improves the performance of Voice over Internet Protocol (VoIP) traffic using IPV4 and IPV6 over WiMAX networks and the impact of various voice codec schemes and statistical distribution for Voice over Internet Protocol (VoIP) over WiMAX has been investigated in detail.
lecture_5.pptx
This document summarizes wireless network security standards and protocols including IEEE 802.11, WPA, WAP, and WTLS. It discusses authentication, encryption, and key management in 802.11i and the phases of operation. It provides an overview of the WAP programming model, markup language, and architecture including the WTP gateway. It describes how WTLS provides security between mobile devices and gateways based on TLS, and its handshake protocol. Finally, it mentions the security gap between WTLS and TLS domains when moving to WAP end-to-end security.
Wimax and VoIP Presentation
1. The document introduces VoIP concepts and presents Asterisk as a free and open source PBX software solution that is well-suited for implementing VoIP networks in developing regions.
2. It discusses challenges in developing regions like lack of technical knowledge and affordable infrastructure, and how VoIP solutions like Asterisk can help address these issues by providing flexibility.
3. The document provides an overview of topics covered like basic VoIP concepts, how to set up an Asterisk PBX, equipment options, and presents a case study of introducing VoIP services.
A NEW SYSTEM ON CHIP RECONFIGURABLE GATEWAY ARCHITECTURE FOR VOICE OVER INTER...
The aim of this paper is to present a new System on Chip (SoC) reconfigurable gateway
architecture for Voice over Internet Telephony (VOIP). Our motivation behind this work is
justified by the following arguments: most of VOIP solutions proposed in the market are based
on the use of a general purpose processor and a DSP circuit. In these solutions, the use of the
serial multiply accumulate circuit is very limiting for the signal processing. Also, in embedded
VOIP based DSP applications, the DSP works without MMU (memory management unit). This
is a serious limitation because VOIP solutions are multi-task based. In order to overcome these
problems, we propose a new VOIP gateway architecture built around the OpenRisc-1200-V3
processor. This last one integrates a DSP circuit as well as a MMU. The hardware architecture
is mapped into the VIRTEX-5 FPGA device. We propose a design methodology based on the
design for reuse and design with reuse concepts. We demonstrate that the proposed SoC
architecture is reconfigurable, scalable and the final RTL code can be reused for any FPGA or
ASIC technology. Performances measures, in the VIRTEX-5 FPGA device family, show that the
SOC-gateway architecture occupies 52% of the FPGA in term of slice LUT, 42% of IOBs, 60%
of bloc memory, 8% of integrated DSP, 16% of PLL and the total power is estimated at
4.3Watts.
Slides for protocol layering and network applications
why and how Protocol layering is done in TCP/IP protocol suite, how multiplexing and demultiplexing can be done in different protocol layers in TCP\IP.
Migrating Visual Communications from H.323 to SIP
This document discusses migrating from the H.323 protocol to the SIP protocol for visual communications. It provides an overview of the two protocols and compares them. H.323 was developed for video conferencing while SIP is more scalable and can better support unified communications by integrating presence, instant messaging, and other applications. The document also discusses trends in the market such as moving to on-demand conferencing and unifying communications, which are driving factors for migrating to SIP. However, the transition will take time as H.323 and SIP need to coexist in networks.
Migrating Visual Communications from H.323 to SIP
The document discusses migrating from the H.323 protocol to the SIP protocol for visual communications. It provides an overview of the H.323 and SIP protocols, comparing their elements and call flows. The document also discusses trends in the visual communications market, including shifts towards on-demand conferencing and unified communications, and how SIP can help meet requirements created by these trends. Polycom is working on seamlessly migrating customers from their H.323-based systems to SIP over the long term as both protocols will coexist during the transition period.
Migrating Visual Communications from H.323 to SIP
This document discusses migrating from the H.323 protocol to the SIP protocol for visual communications. It provides an overview of the two protocols and compares them. H.323 was developed for video conferencing while SIP is more scalable and can better support unified communications by integrating presence, instant messaging, and other applications. The document also discusses trends in the market such as moving to on-demand conferencing and unifying voice, video, and data into a single collaboration system, both of which are better supported by SIP. Polycom is working to smoothly migrate customers from H.323 to SIP over the long term as the two protocols coexist during the transition period.
Leveraging Generative AI to Drive Nonprofit Innovation
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
More Related Content
Similar to ECE 6570 Class01
AbstractVoice over Internet Protocol (VoIP) is an advanced t.docx
Abstract
Voice over Internet Protocol (VoIP) is an advanced telecommunication technology which transfers the voice/video over
high speed network that provides advantages of flexibility, reliability and cost efficient advanced telecommunication
features. Still the issues related to security are averting many organizations to accept VoIP cloud environment due to
security threats, holes or vulnerabilities. So, the novel secured framework is absolutely necessary to prevent all kind of
VoIP security issues. This paper points out the existing VoIP cloud architecture and various security attacks and issues
in the existing framework. It also presents the defense mechanisms to prevent the attacks and proposes a new security
framework called Intrusion Prevention System (IPS) using video watermarking and extraction technique and Liveness
Voice Detection (LVD) technique with biometric features such as face and voice. IPSs updated with new LVD features
protect the VoIP services not only from attacks but also from misuses.
A Comprehensive Survey of Security Issues and
Defense Framework for VoIP Cloud
Ashutosh Satapathy* and L. M. Jenila Livingston
School of Computing Science and Engineering, VIT University, Chennai - 600127, Tamil Nadu, India;
[email protected], [email protected]
Keywords: Defense Mechanisms, Liveness Voice Detection, VoIP Cloud, Voice over Internet Protocol, VoIP Security Issues
1. Introduction
The rapid progress of VoIP over traditional services is
led to a situation that is common to many innovations
and new technologies such as VoIP cloud and peer to
peer services like Skype, Google Hangout etc. VoIP is the
technology that supports sending voice (and video) over
an Internet protocol-based network1,2. This is completely
different than the public circuit-switched telephone net-
work. Circuit switching network allocates resources to
each individual call and path is permanent throughout
the call from start to end. Traditional telephony services
are provided by the protocols/components such as SS7, T
carriers, Plain Old Telephone Service (POTS), the Public
Switch Telephone Network (PSTN), dial up, local loops
and anything under International Telecommunication
Union. IP networks are based on packet switching and
each packet follows different path, has its own header and
is forwarded separately by routers. VoIP network can be
constructed in various ways by using both proprietary
protocols and protocols based on open standards.
1.1 VoIP Layer Architecture
VoIP communication system typically consist of a front
end platform (soft-phone, PBX, gateway, call manager),
back end platform (server, CPU, storage, memory, net-
work) and intermediate platforms such as VoIP protocols,
database, authentication server, web server, operating sys-
tems etc. It is mainly divided into five layers as shown in
Figure1.
1.2 VoIP Cloud Architecture
VoIP cloud is the framework for delivering telephony
services in which resourc.
AbstractVoice over Internet Protocol (VoIP) is an advanced t.docx
Abstract
Voice over Internet Protocol (VoIP) is an advanced telecommunication technology which transfers the voice/video over
high speed network that provides advantages of flexibility, reliability and cost efficient advanced telecommunication
features. Still the issues related to security are averting many organizations to accept VoIP cloud environment due to
security threats, holes or vulnerabilities. So, the novel secured framework is absolutely necessary to prevent all kind of
VoIP security issues. This paper points out the existing VoIP cloud architecture and various security attacks and issues
in the existing framework. It also presents the defense mechanisms to prevent the attacks and proposes a new security
framework called Intrusion Prevention System (IPS) using video watermarking and extraction technique and Liveness
Voice Detection (LVD) technique with biometric features such as face and voice. IPSs updated with new LVD features
protect the VoIP services not only from attacks but also from misuses.
A Comprehensive Survey of Security Issues and
Defense Framework for VoIP Cloud
Ashutosh Satapathy* and L. M. Jenila Livingston
School of Computing Science and Engineering, VIT University, Chennai - 600127, Tamil Nadu, India;
[email protected], [email protected]
Keywords: Defense Mechanisms, Liveness Voice Detection, VoIP Cloud, Voice over Internet Protocol, VoIP Security Issues
1. Introduction
The rapid progress of VoIP over traditional services is
led to a situation that is common to many innovations
and new technologies such as VoIP cloud and peer to
peer services like Skype, Google Hangout etc. VoIP is the
technology that supports sending voice (and video) over
an Internet protocol-based network1,2. This is completely
different than the public circuit-switched telephone net-
work. Circuit switching network allocates resources to
each individual call and path is permanent throughout
the call from start to end. Traditional telephony services
are provided by the protocols/components such as SS7, T
carriers, Plain Old Telephone Service (POTS), the Public
Switch Telephone Network (PSTN), dial up, local loops
and anything under International Telecommunication
Union. IP networks are based on packet switching and
each packet follows different path, has its own header and
is forwarded separately by routers. VoIP network can be
constructed in various ways by using both proprietary
protocols and protocols based on open standards.
1.1 VoIP Layer Architecture
VoIP communication system typically consist of a front
end platform (soft-phone, PBX, gateway, call manager),
back end platform (server, CPU, storage, memory, net-
work) and intermediate platforms such as VoIP protocols,
database, authentication server, web server, operating sys-
tems etc. It is mainly divided into five layers as shown in
Figure1.
1.2 VoIP Cloud Architecture
VoIP cloud is the framework for delivering telephony
services in which resourc ...
AbstractVoice over Internet Protocol (VoIP) is an advanced t.docx
Abstract
Voice over Internet Protocol (VoIP) is an advanced telecommunication technology which transfers the voice/video over
high speed network that provides advantages of flexibility, reliability and cost efficient advanced telecommunication
features. Still the issues related to security are averting many organizations to accept VoIP cloud environment due to
security threats, holes or vulnerabilities. So, the novel secured framework is absolutely necessary to prevent all kind of
VoIP security issues. This paper points out the existing VoIP cloud architecture and various security attacks and issues
in the existing framework. It also presents the defense mechanisms to prevent the attacks and proposes a new security
framework called Intrusion Prevention System (IPS) using video watermarking and extraction technique and Liveness
Voice Detection (LVD) technique with biometric features such as face and voice. IPSs updated with new LVD features
protect the VoIP services not only from attacks but also from misuses.
A Comprehensive Survey of Security Issues and
Defense Framework for VoIP Cloud
Ashutosh Satapathy* and L. M. Jenila Livingston
School of Computing Science and Engineering, VIT University, Chennai - 600127, Tamil Nadu, India;
[email protected], [email protected]
Keywords: Defense Mechanisms, Liveness Voice Detection, VoIP Cloud, Voice over Internet Protocol, VoIP Security Issues
1. Introduction
The rapid progress of VoIP over traditional services is
led to a situation that is common to many innovations
and new technologies such as VoIP cloud and peer to
peer services like Skype, Google Hangout etc. VoIP is the
technology that supports sending voice (and video) over
an Internet protocol-based network1,2. This is completely
different than the public circuit-switched telephone net-
work. Circuit switching network allocates resources to
each individual call and path is permanent throughout
the call from start to end. Traditional telephony services
are provided by the protocols/components such as SS7, T
carriers, Plain Old Telephone Service (POTS), the Public
Switch Telephone Network (PSTN), dial up, local loops
and anything under International Telecommunication
Union. IP networks are based on packet switching and
each packet follows different path, has its own header and
is forwarded separately by routers. VoIP network can be
constructed in various ways by using both proprietary
protocols and protocols based on open standards.
1.1 VoIP Layer Architecture
VoIP communication system typically consist of a front
end platform (soft-phone, PBX, gateway, call manager),
back end platform (server, CPU, storage, memory, net-
work) and intermediate platforms such as VoIP protocols,
database, authentication server, web server, operating sys-
tems etc. It is mainly divided into five layers as shown in
Figure1.
1.2 VoIP Cloud Architecture
VoIP cloud is the framework for delivering telephony
services in which resourc.
Voip
The document provides an overview of Voice over IP (VoIP) including its benefits and requirements. VoIP allows phone calls to be made over an IP network like the internet rather than the traditional public switched telephone network. It provides benefits like reduced costs and integrated services. However, deploying VoIP requires addressing requirements around services, quality of service, security, billing and network interconnection to provide equivalence to the PSTN. The document also discusses protocols used for VoIP like OSI and layers of the OSI model.
VoIP Research Paper
This document summarizes a research paper on VoIP security. It discusses two important VoIP protocols, SIP and H.323, and analyzes their security features. It also defines new functionality for negotiating security mechanisms between SIP entities. Several security issues are identified for VoIP, such as denial of service attacks. Solutions to improve VoIP security include encryption at endpoints, using SRTP, better scheduling, and resolving NAT/IPsec incompatibilities.
Voice over IP (VOIP) Security Research- A Research
This document summarizes research on Voice over IP (VoIP) security. It begins with an overview of SIP (Session Initiation Protocol), a commonly used VoIP standard, and a taxonomy of VoIP security threats. It then surveys existing research on VoIP security classified according to the threat categories. The research covers threats like eavesdropping, denial of service attacks, toll fraud, and spam over IP telephony (SPIT). Approaches studied include encryption, authentication, reputation systems, audio fingerprinting, and Turing tests to detect automated SPIT callers. The goal is to identify gaps and guide future work on analyzing VoIP attackers and improving the security and resilience of VoIP systems.
Open Source Telecom Software Landscape by Alan Quayle
There are tens of successful Open Source Telecom Software projects, with vibrant communities supporting them. Asterisk, the most successful and longest running is 20 years old. We heard from them earlier in the agenda.
We’ll review the many other projects to help people understand the depth, breadth and rapidly evolving nature of these projects. As we’ll as some of the new projects like Drachtio.org, and used recently at TADHack-mini Orlando Online 2020, for the hack SMB Reschedule.
We’ll also review the results from an anonymous survey of open source telecom software. Comparing the different projects, the preferred application areas of the projects, common issues and solutions, sharing where the industry sees these projects in 5 years’ time.
How does VOIP work diagram
Voice over Internet Protocol (VoIP) is replacing legacy telephone networks by carrying digitized voice in IP data packets over data networks. This chapter introduces VoIP, comparing it to legacy telephone networks, and discusses VoIP standards and protocols. It also introduces WiMAX networks and discusses supporting QoS for multimedia like VoIP over WiMAX. The objectives are to guarantee QoS for multiple service classes over WiMAX and improve VoIP performance. Simulation using OPNET Modeler will analyze VoIP traffic and QoS parameters over WiMAX.
Abdullah Al Mamun 062507056
This document discusses a fraud monitoring system for voice over internet protocol (VoIP) telephony. It begins with an introduction to VoIP and defines fraud. It then discusses the history of VoIP and how VoIP connections work. Key points discussed include quality of service requirements, protocols used in VoIP like SIP and H.323, and security challenges like dynamic addressing and firewalls. The document examines how a fraud management system could address these security issues to help secure VoIP networks.
NGNlab - The Deployment of an Open-Source Infrastructure
NGNlab is an open-source next generation network infrastructure deployed at the Slovak University of Technology that provides communication services using only free and open-source software. It includes a complete SIP-based infrastructure with services like registrar, proxy, conferencing, and integrated voice mail. The infrastructure can function as a small VoIP operator. It also implements an IMS core with presence management and IPTV capabilities. All software used is open-source, including the operating system, virtualization software, SIP server, and IMS/IPTV solutions. The infrastructure provides a platform for research and understanding telecommunications standards in a hands-on environment using customizable open-source software.
A Deep Dive in the World of IT Networking (Part 2)
For a successful career in Information Technology, a strong foundation of basic networking concepts is a must. Networking technology allows for the exchange of data between large and small information systems used primarily by various businesses.
Learn more about:
» OSI Model
» Networking Protocol
» TCP Model
» Networking and data security
3G Wireless Access, Abstract
This document discusses digital security and the need for security measures when connecting corporate computer networks to the internet. It notes that internet-based technologies like VPNs, powerline communications, satellite communications, and wireless networks increasingly connect networks globally. However, more malicious actors are finding ways to infiltrate systems through technology. While the internet is essential, there are cybersecurity risks to consider. Digital security aims to protect digital identities and assets by implementing tools, policies, and procedures to secure technology and data in online and mobile environments.
Voip on Wimax
This research work investigates and improves the performance of Voice over Internet Protocol (VoIP) traffic using IPV4 and IPV6 over WiMAX networks and the impact of various voice codec schemes and statistical distribution for Voice over Internet Protocol (VoIP) over WiMAX has been investigated in detail.
lecture_5.pptx
This document summarizes wireless network security standards and protocols including IEEE 802.11, WPA, WAP, and WTLS. It discusses authentication, encryption, and key management in 802.11i and the phases of operation. It provides an overview of the WAP programming model, markup language, and architecture including the WTP gateway. It describes how WTLS provides security between mobile devices and gateways based on TLS, and its handshake protocol. Finally, it mentions the security gap between WTLS and TLS domains when moving to WAP end-to-end security.
Wimax and VoIP Presentation
1. The document introduces VoIP concepts and presents Asterisk as a free and open source PBX software solution that is well-suited for implementing VoIP networks in developing regions.
2. It discusses challenges in developing regions like lack of technical knowledge and affordable infrastructure, and how VoIP solutions like Asterisk can help address these issues by providing flexibility.
3. The document provides an overview of topics covered like basic VoIP concepts, how to set up an Asterisk PBX, equipment options, and presents a case study of introducing VoIP services.
A NEW SYSTEM ON CHIP RECONFIGURABLE GATEWAY ARCHITECTURE FOR VOICE OVER INTER...
The aim of this paper is to present a new System on Chip (SoC) reconfigurable gateway
architecture for Voice over Internet Telephony (VOIP). Our motivation behind this work is
justified by the following arguments: most of VOIP solutions proposed in the market are based
on the use of a general purpose processor and a DSP circuit. In these solutions, the use of the
serial multiply accumulate circuit is very limiting for the signal processing. Also, in embedded
VOIP based DSP applications, the DSP works without MMU (memory management unit). This
is a serious limitation because VOIP solutions are multi-task based. In order to overcome these
problems, we propose a new VOIP gateway architecture built around the OpenRisc-1200-V3
processor. This last one integrates a DSP circuit as well as a MMU. The hardware architecture
is mapped into the VIRTEX-5 FPGA device. We propose a design methodology based on the
design for reuse and design with reuse concepts. We demonstrate that the proposed SoC
architecture is reconfigurable, scalable and the final RTL code can be reused for any FPGA or
ASIC technology. Performances measures, in the VIRTEX-5 FPGA device family, show that the
SOC-gateway architecture occupies 52% of the FPGA in term of slice LUT, 42% of IOBs, 60%
of bloc memory, 8% of integrated DSP, 16% of PLL and the total power is estimated at
4.3Watts.
Slides for protocol layering and network applications
why and how Protocol layering is done in TCP/IP protocol suite, how multiplexing and demultiplexing can be done in different protocol layers in TCP\IP.
Migrating Visual Communications from H.323 to SIP
This document discusses migrating from the H.323 protocol to the SIP protocol for visual communications. It provides an overview of the two protocols and compares them. H.323 was developed for video conferencing while SIP is more scalable and can better support unified communications by integrating presence, instant messaging, and other applications. The document also discusses trends in the market such as moving to on-demand conferencing and unifying communications, which are driving factors for migrating to SIP. However, the transition will take time as H.323 and SIP need to coexist in networks.
Migrating Visual Communications from H.323 to SIP
The document discusses migrating from the H.323 protocol to the SIP protocol for visual communications. It provides an overview of the H.323 and SIP protocols, comparing their elements and call flows. The document also discusses trends in the visual communications market, including shifts towards on-demand conferencing and unified communications, and how SIP can help meet requirements created by these trends. Polycom is working on seamlessly migrating customers from their H.323-based systems to SIP over the long term as both protocols will coexist during the transition period.
Migrating Visual Communications from H.323 to SIP
This document discusses migrating from the H.323 protocol to the SIP protocol for visual communications. It provides an overview of the two protocols and compares them. H.323 was developed for video conferencing while SIP is more scalable and can better support unified communications by integrating presence, instant messaging, and other applications. The document also discusses trends in the market such as moving to on-demand conferencing and unifying voice, video, and data into a single collaboration system, both of which are better supported by SIP. Polycom is working to smoothly migrate customers from H.323 to SIP over the long term as the two protocols coexist during the transition period.
Similar to ECE 6570 Class01 (20)
AbstractVoice over Internet Protocol (VoIP) is an advanced t.docx
AbstractVoice over Internet Protocol (VoIP) is an advanced t.docx
AbstractVoice over Internet Protocol (VoIP) is an advanced t.docx
AbstractVoice over Internet Protocol (VoIP) is an advanced t.docx
AbstractVoice over Internet Protocol (VoIP) is an advanced t.docx
AbstractVoice over Internet Protocol (VoIP) is an advanced t.docx
Voice over IP (VOIP) Security Research- A Research
Voice over IP (VOIP) Security Research- A Research
Open Source Telecom Software Landscape by Alan Quayle
Open Source Telecom Software Landscape by Alan Quayle
NGNlab - The Deployment of an Open-Source Infrastructure
NGNlab - The Deployment of an Open-Source Infrastructure
A Deep Dive in the World of IT Networking (Part 2)
A Deep Dive in the World of IT Networking (Part 2)
A NEW SYSTEM ON CHIP RECONFIGURABLE GATEWAY ARCHITECTURE FOR VOICE OVER INTER...
A NEW SYSTEM ON CHIP RECONFIGURABLE GATEWAY ARCHITECTURE FOR VOICE OVER INTER...
Slides for protocol layering and network applications
Slides for protocol layering and network applications
Recently uploaded
Leveraging Generative AI to Drive Nonprofit Innovation
In this webinar, participants learned how to utilize Generative AI to streamline operations and elevate member engagement. Amazon Web Service experts provided a customer specific use cases and dived into low/no-code tools that are quick and easy to deploy through Amazon Web Service (AWS.)
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Pengantar Penggunaan Flutter - Dart programming language1.pptx
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
Physical pharmaceutics notes for B.pharm students
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...Nguyen Thanh Tu Collection
https://app.box.com/s/y977uz6bpd3af4qsebv7r9b7s21935vdWhat is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Aberdeen
How to Setup Warehouse & Location in Odoo 17 Inventory
In this slide, we'll explore how to set up warehouses and locations in Odoo 17 Inventory. This will help us manage our stock effectively, track inventory levels, and streamline warehouse operations.
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh
Mule event processing models | MuleSoft Mysore Meetup #47
Mule event processing models | MuleSoft Mysore Meetup #47
Event Link:- https://meetups.mulesoft.com/events/details/mulesoft-mysore-presents-mule-event-processing-models/
Agenda
● What is event processing in MuleSoft?
● Types of event processing models in Mule 4
● Distinction between the reactive, parallel, blocking & non-blocking processing
For Upcoming Meetups Join Mysore Meetup Group - https://meetups.mulesoft.com/mysore/YouTube:- youtube.com/@mulesoftmysore
Mysore WhatsApp group:- https://chat.whatsapp.com/EhqtHtCC75vCAX7gaO842N
Speaker:-
Shivani Yasaswi - https://www.linkedin.com/in/shivaniyasaswi/
Organizers:-
Shubham Chaurasia - https://www.linkedin.com/in/shubhamchaurasia1/
Giridhar Meka - https://www.linkedin.com/in/giridharmeka
Priya Shaw - https://www.linkedin.com/in/priya-shaw
Gender and Mental Health - Counselling and Family Therapy Applications and In...
A proprietary approach developed by bringing together the best of learning theories from Psychology, design principles from the world of visualization, and pedagogical methods from over a decade of training experience, that enables you to: Learn better, faster!
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Iván Bornacelly, Policy Analyst at the OECD Centre for Skills, OECD, presents at the webinar 'Tackling job market gaps with a skills-first approach' on 12 June 2024
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...Nguyen Thanh Tu Collection
https://app.box.com/s/qhtvq32h4ybf9t49ku85x0n3xl4jhr15How to deliver Powerpoint Presentations.pptx
"How to make and deliver dynamic presentations by making it more interactive to captivate your audience attention"
A Visual Guide to 1 Samuel | A Tale of Two Hearts
These slides walk through the story of 1 Samuel. Samuel is the last judge of Israel. The people reject God and want a king. Saul is anointed as the first king, but he is not a good king. David, the shepherd boy is anointed and Saul is envious of him. David shows honor while Saul continues to self destruct.
مصحف القراءات العشر أعد أحرف الخلاف سمير بسيوني.pdf
مصحف أحرف الخلاف للقراء العشرةأعد أحرف الخلاف بالتلوين وصلا سمير بسيوني غفر الله له
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.ppt
The History of NZ 1870-1900.
Making of a Nation.
From the NZ Wars to Liberals,
Richard Seddon, George Grey,
Social Laboratory, New Zealand,
Confiscations, Kotahitanga, Kingitanga, Parliament, Suffrage, Repudiation, Economic Change, Agriculture, Gold Mining, Timber, Flax, Sheep, Dairying,
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
(𝐓𝐋𝐄 𝟏𝟎𝟎) (𝐋𝐞𝐬𝐬𝐨𝐧 𝟏)-𝐏𝐫𝐞𝐥𝐢𝐦𝐬
𝐃𝐢𝐬𝐜𝐮𝐬𝐬 𝐭𝐡𝐞 𝐄𝐏𝐏 𝐂𝐮𝐫𝐫𝐢𝐜𝐮𝐥𝐮𝐦 𝐢𝐧 𝐭𝐡𝐞 𝐏𝐡𝐢𝐥𝐢𝐩𝐩𝐢𝐧𝐞𝐬:
- Understand the goals and objectives of the Edukasyong Pantahanan at Pangkabuhayan (EPP) curriculum, recognizing its importance in fostering practical life skills and values among students. Students will also be able to identify the key components and subjects covered, such as agriculture, home economics, industrial arts, and information and communication technology.
𝐄𝐱𝐩𝐥𝐚𝐢𝐧 𝐭𝐡𝐞 𝐍𝐚𝐭𝐮𝐫𝐞 𝐚𝐧𝐝 𝐒𝐜𝐨𝐩𝐞 𝐨𝐟 𝐚𝐧 𝐄𝐧𝐭𝐫𝐞𝐩𝐫𝐞𝐧𝐞𝐮𝐫:
-Define entrepreneurship, distinguishing it from general business activities by emphasizing its focus on innovation, risk-taking, and value creation. Students will describe the characteristics and traits of successful entrepreneurs, including their roles and responsibilities, and discuss the broader economic and social impacts of entrepreneurial activities on both local and global scales.
Recently uploaded (20)
Leveraging Generative AI to Drive Nonprofit Innovation
Leveraging Generative AI to Drive Nonprofit Innovation
Pengantar Penggunaan Flutter - Dart programming language1.pptx
Pengantar Penggunaan Flutter - Dart programming language1.pptx
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
RHEOLOGY Physical pharmaceutics-II notes for B.pharm 4th sem students
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
What is Digital Literacy? A guest blog from Andy McLaughlin, University of Ab...
How to Setup Warehouse & Location in Odoo 17 Inventory
How to Setup Warehouse & Location in Odoo 17 Inventory
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Traditional Musical Instruments of Arunachal Pradesh and Uttar Pradesh - RAYH...
Mule event processing models | MuleSoft Mysore Meetup #47
Mule event processing models | MuleSoft Mysore Meetup #47
Gender and Mental Health - Counselling and Family Therapy Applications and In...
Gender and Mental Health - Counselling and Family Therapy Applications and In...
B. Ed Syllabus for babasaheb ambedkar education university.pdf
B. Ed Syllabus for babasaheb ambedkar education university.pdf
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
Beyond Degrees - Empowering the Workforce in the Context of Skills-First.pptx
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
BÀI TẬP DẠY THÊM TIẾNG ANH LỚP 7 CẢ NĂM FRIENDS PLUS SÁCH CHÂN TRỜI SÁNG TẠO ...
مصحف القراءات العشر أعد أحرف الخلاف سمير بسيوني.pdf
مصحف القراءات العشر أعد أحرف الخلاف سمير بسيوني.pdf
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.ppt
Level 3 NCEA - NZ: A Nation In the Making 1872 - 1900 SML.ppt
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
Philippine Edukasyong Pantahanan at Pangkabuhayan (EPP) Curriculum
Film vocab for eal 3 students: Australia the movie
Film vocab for eal 3 students: Australia the movie
ECE 6570 Class01
- 1. ECE 6570 Telecomm Security Protocols
- 2. ECE 6570 Telecomm Security Protocols
- 3. ECE 6570 Telecomm, Security, and Protocols
- 4. ECE 6570 Telecomm, Protocols, and Security
- 6. Telecomm, Protocols, and Security Telecomm Security Protocols
- 7. Telecomm, Protocols, and Security Telecomm Security Protocols Telecomm Security Security Protocols Telecomm Protocols
- 8. Telecomm, Protocols, and Security Telecomm Security Protocols Telecomm Security Telecomm Security Protocols Security Protocols Telecomm Protocols
- 9. Telecomm, Protocols, and Security Security ECE 6595 ECE 6550 ECE 6570 Security Protocols ECE 6555 ECE 6535 ECE 6760 ECE 6550
- 15. Security (wikipedia) Information security means protecting information and information systems from unauthorized access, use, disclosure, disruption, modification, perusal, inspection, recording or destruction. The terms information security, computer security and information assurance are frequently incorrectly used interchangeably. These fields are interrelated often and share the common goals of protecting the confidentiality , integrity and availability of information; however, there are some subtle differences between them.
- 19. CH01 Architecture of FreeSWITCH
- 20. CH01 Architecture of FreeSWITCH Week 01 Week 02 Week 02 Week 03 Week 03 Week 02 Week 03 Week 04 Week 04 Week 04