VoIP is short for Voice over Internet Protocol. VoIP is a category of hardware and software that enables people to use the Internet as the transmission medium for telephone calls by sending voice data in packets using IP rather than by traditional circuit transmissions of the PSTN.
Voice over Internet Protocol (VoIP) is a general term for a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks.
Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service.
Voice over Internet Protocol (VoIP) is a general term for a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks.
Voice over IP (VoIP) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Other terms commonly associated with VoIP are IP telephony, Internet telephony, broadband telephony, and broadband phone service.
Nowadays VoIP technologies have taken the upper hand offering many advantages compared to the traditional telephone network, but what are the security risks involved when voice and data networks come together. In this presentation, we will identify and evaluate these different security risks and their countermeasures both from a defensive as offensive position.
a seminar paper presentation .this will help you know about voice transmission over the internet protocol's.as in Skype, watts app. it also give an idea about old technology. thanks. if any mistakes ,and add any updates and share with me .on about this slide
Grokking TechTalk #18B: VoIP Architecture For TelecommunicationsGrokking VN
Bài talk chia sẻ kiến thức, kinh nghiệm về kiến trúc VoIP cho các bạn dự định xây dựng hệ thống dựa trên nền tảng VoIP, lập trình phát triển ứng dụng CRM, ERP, POS...tích hợp Call & Contact Center, ứng dụng OTT tích hợp Mobile App và call out PSTN, tương tự dịch vụ Viber Out:
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Anh Đạt là cử nhân Toán - Tin học, Thạc sỹ Tài chính - Ngân hàng, hơn 10 năm kinh nghiệm triển khai hệ thống ERP/CRM trên nền tảng Oracle/SAP và triển khai các dịch vụ giá trị gia tăng trên nền viễn thông, Brand Name SMS, Call & Contact Center, VoIP Platform
VoIP is one of a family of internet technologies and transmission technologies for delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks.
FB: https://www.facebook.com/mstfahsin
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.
Nowadays VoIP technologies have taken the upper hand offering many advantages compared to the traditional telephone network, but what are the security risks involved when voice and data networks come together. In this presentation, we will identify and evaluate these different security risks and their countermeasures both from a defensive as offensive position.
a seminar paper presentation .this will help you know about voice transmission over the internet protocol's.as in Skype, watts app. it also give an idea about old technology. thanks. if any mistakes ,and add any updates and share with me .on about this slide
Grokking TechTalk #18B: VoIP Architecture For TelecommunicationsGrokking VN
Bài talk chia sẻ kiến thức, kinh nghiệm về kiến trúc VoIP cho các bạn dự định xây dựng hệ thống dựa trên nền tảng VoIP, lập trình phát triển ứng dụng CRM, ERP, POS...tích hợp Call & Contact Center, ứng dụng OTT tích hợp Mobile App và call out PSTN, tương tự dịch vụ Viber Out:
- VoIP Platform
- IP-PBX
- WebRTC Gateway & Client
- Use Cases
About Speaker:
Anh Đạt là cử nhân Toán - Tin học, Thạc sỹ Tài chính - Ngân hàng, hơn 10 năm kinh nghiệm triển khai hệ thống ERP/CRM trên nền tảng Oracle/SAP và triển khai các dịch vụ giá trị gia tăng trên nền viễn thông, Brand Name SMS, Call & Contact Center, VoIP Platform
VoIP is one of a family of internet technologies and transmission technologies for delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks.
FB: https://www.facebook.com/mstfahsin
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.
4.5G: Integration of LTE and Wi-Fi networkseXplanoTech
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Various factors can have a significant degrading impact on the residential Voice over Internet Protocol (VoIP) phone services’ quality. Hybrid fibre- coaxial (HFC) networks typically carry three types of traffic that include voice, data, and video. Unlike data and video, some delays or packet loss can result in a noticeable degraded impact on a VoIP’s phone conversation. This paper will analyze and assess VoIP traffic prioritization and its impact on VoIP’s quality of service (QoS) based on the concept of differentiated services code point (DSCP) markings. Call testing examines two types of calls. The first set of tests focus on calls that originate from a VoIP network and terminate on a signalling system 7 (SS7) network. The second experiment focuses on calls that originate from SS7 network and terminate on a VoIP network. The research results provide DSCP markings configurations that can improve phone conversations’ quality
VoIP (Voice over Internet Protocol).pdfOkan YILDIZ
VoIP (Voice over Internet Protocol) transmits voice and multimedia content over an internet connection. VoIP allows users to make voice calls from a computer, smartphone, other mobile devices, special VoIP phones and WebRTC-enabled browsers. VoIP is a valuable technology for consumers and businesses, as it typically includes additional features that can't be found on standard phone services. These features include call recording, custom caller ID, and voicemail to e-mail. It is also helpful to organizations as a way to unify communications.
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VoIP
1. VoIP
(Voice over Internet Protocol)
July 06, 2019 (Saturday)
Dhaka International University
Md. Arif Hossain
Dept of EETE;
Semester: 12th;
Batch: 31st (eve);
Roll no: 33
2. Dhaka International University
2
Abstract
What is VoIP?
How VoIP Works?
VoIP Equipment
VoIP Architecture
Contents
VoIP Comparative study in BD, Asia, Europe, Australia, USA
3. Dhaka International University
VoIP is short for Voice over
Internet Protocol. VoIP is a
category of hardware and
software that enables people to
use the Internet as the
transmission medium for
telephone calls by sending voice
data in packets using IP rather
than by traditional circuit
transmissions of the PSTN.
3
Abstract
4. Dhaka International University
VoIP is packetisation and transport of
classic public switched telephone
system audio over an IP network.
It allows 2-way voice transmission
over broadband connection.
It is also called IP Telephony, Internet
Telephony, Voice over Broadband,
Broadband Telephony.
4
What is VoIP?
5. Dhaka International University
Voice over Internet Protocol (VoIP) is referred to as and
broadly includes Voice over Broadband (VoB),Voice over
Digital Subscriber Line (DSL), Voice over Internet (VoI),
Voice over Wireless Local Area, Network and Internet
telephony.
5
ITU Definition for VoIP ?
6. Dhaka International University
• VoIP services convert your voice into a digital signal that travels
over the Internet.
• If you are calling a regular phone number, the signal is converted to
a regular telephone signal before it reaches the destination.
• VoIP can allow you to make a call directly from a computer, a
special VoIP phone, or a traditional phone connected to a special
adapter.
• In addition, wireless "hot spots" in locations such as airports, parks,
and cafes allow you to connect to the Internet and may enable you
to use VoIP service wirelessly.
6
How VoIP/Internet Voice Works?
9. Dhaka International University
A broadband (high speed Internet) connection is required. This can
be through a cable modem, or high speed services such as DSL or a
local area network.
A computer, adaptor, or specialized phone is required. Some VoIP
services only work over your computer or a special VoIP phone,
while other services allow you to use a traditional phone connected
to a VoIP adapter.
If you use your computer, you will need some software and an
inexpensive microphone. Special VoIP phones plug directly into
your broadband connection and operate largely like a traditional
telephone.
If you use a telephone with a VoIP adapter, you'll be able to dial just
as you always have, and the service provider may also provide a dial
tone.
9
Which Equipments are needed?
10. Dhaka International University
For businesses: Security at a lower cost
For consumers: Significantly lower costs
For service providers: Lower investment, capital and operating costs
for operators, it can be through :
Reductions in the bandwidth required to send any given voice
message; and
Economies of scale;
The possibility of converged services running over one
network (as opposed to multiple, older legacy networks).
Also it can be Enhanced innovation, New business models and Entry
into new markets for service providers.
10
VoIP strengthen factors
14. Dhaka International University 14
VoIP Architecture
PSTN-Gateway-Internet-Gateway-PSTN
Internet
Gateway
Gateway
PSTN
PSTN
15. Dhaka International University
Xbox Voice
Windows messenger
AOL Instant Messenger
Motorola Phone Adapter (Vonage)
Cisco Phone
Cox Cable in Hampton Roads, Virginia
Skype etc
15
VoIP Examples
16. Dhaka International University
VoIP is legal and requires a specific VoIP license. The regulator, the Bangladesh
Telecommunication Regulatory Commission (BTRC), has issued “Regulatory
and Licensing Guidelines For Invitation of Applications for Issuing VoIP Licenses
for VoIP services in Bangladesh” on 21 September 2006.
License Awarding Process- Bidding.
The licensed operators have to use BTTB’s 26 VoIP platforms to be set up at four
places — Dhaka, Chittagong, Sylhet, and Bogra — for monitoring voice traffic.
According to BTRC Total Number of VoIP Service Provider Licensee is 880.
For formation regarding VSP please log on to http://www.btrc.gov.bd/
16
VoIP in Bangladesh
17. Dhaka International University
The Telecom Regulatory Authority of India (TRAI) provided its recommendations
to Government on Internet telephony on 20 February 2002 to foster
competition, improve 27 options and prices for the consumers and provide
technological flexibility to the providers while maintaining QoS.
VoIP has been legal since 1 April 2002. Facility-based operators can provide
Internet telephony and use VoIP technology to manage their networks, subject
to QoS considerations.
TRAI issued regulations on quality for VoIP ILD calls, differentiating between toll
quality and below-toll quality in November 2002.
TRAI has recommended that: the one-way end-to-end delay should in no case
exceed 150 µseconds; that variability (jitter) should be less than 5%; and that
packet loss should not exceed 1%.
Tariffs for toll quality service offered by facility-based operators should be the
same as for equivalent PSTN-based services. The tariffs of VoIP services offered
by ISPs over the public Internet are not regulated, as this is an application of a
Value-Added Service.
17
VoIP in India
18. Dhaka International University
The Australian Government notes services with different levels of integration:
• Peer-to-peer VoIP services for on-net calls (not connected to the PSTN)
provided online, requiring the user to have a separately-sourced
broadband connection;
• VoIP over broadband services provide interconnection with other types of
voice services (typically provided by online providers with the user having a
separately-sourced broadband connection);
• Vertically-integrated VoIP services offering interconnection with other
voice services, bundled with both a broadband connection and ISP service;
• Corporate or enterprise VoIP services providing the highest QoS of all the
VoIP service types, with interconnection to other types of voice services.
18
VoIP in Australia
19. Dhaka International University
VoIP permitted. Most VoIP services connected to the public network are
considered a standard telephone service and will attract regulatory obligations
(not P2P services).
The Australian Communications and Media Authority (ACMA) issued a
Discussion Paper on Regulatory Issues Associated with Provision of Voice
Services Using Internet Protocol in Australia in October 2004 and held public
consultations on VoIP service regulation throughout 2004.
VoIP is used extensively in corporate networks, while broadband suppliers are
now offering VoIP to the residential market. Australian providers of VoIP
recognize that current regulatory arrangements for voice services and existing
consumer safeguards apply to their services.
19
VoIP in Australia (Contd.)
20. Dhaka International University
The United States is not treating VoIP as a traditional telephone service, but as
a computer based ‘information service’ (as defined by the 1996
Telecommunication Act that distinguishes telephone services from information
services), that is relatively unregulated.
USA has adopted a liberalized approach to VoIP, which is considered an Internet
application/Information Service. There are no licensing requirements, but a
Universal Service contribution is required.
The FCC is examining issues for ‘IP-enabled services’ including VoIP addressing
social issues (e.g. Universal Service) and the classification of services for
regulatory purposes.
In 2005, the FCC changed regulation so that VoIP services connected to the
PSTN must provide access to emergency services.
20
VoIP in USA
21. Dhaka International University
VoIP is permitted, with no need for a license for the provision of VoIP services
over the Internet. PTS over VoIP is subject to voice telephony licensing
requirements, if managed VoIP traffic forms part of the core network of a PTS
operator.
The Austrian regulator RTR 33 conducted a consultation on the numbering for
VoIP services. VoIP service providers are subject to loose regulations. These
services have only to be notified, according to the Telecommunications Act.
The incumbent announced its cooperation with a US-based VoIP carrier
establishing an IP interconnection.
21
VoIP in Austria
22. Dhaka International University
No specific regulations apply to VoIP providers. VoIP services were not officially
offered on the market, until as recently as mid-2003.
IP telephony over the Internet is not covered by the Danish Telecom regulation,
with IP telephony considered as content. Other forms of IP telephony which do
constitute telecom services can be provided under Danish telecom regulation
without any license requirements.
The Danish regulator NTA conducted a consultation on the numbering for VoIP
services. Consumer protection rules are an obligation for all telecom service
providers.
22
VoIP in Denmark
23. Dhaka International University
Under the EU regulatory framework of July 2003, players (including VoIP
providers) are free to enter the market for electronic communications services
without prior authorization, provided they abide by the conditions of the
general authorization applicable in each Member State.
VoIP providers will face obligations under the EU framework depending on the
service, rather than the technology used to provide it. The EU aims to adopt a
light regulatory touch, taking into account the emerging nature of the
technology, whilst preserving consumer interests (e.g. access to emergency
services).
The EU issued an Information and Consultation Document on the Treatment of
VoIP under the EU Regulatory Framework in June 2004.
23
VoIP in EU
24. Dhaka International University
For more information regarding VoIP and it’s current situation in different
countries please follow the link:
[1]. https://www.itu.int/osg/spu/ni/voice/papers/FoV-VoIP-Biggs-Draft.pdf
[2]. Afghanistan Telecom Regulatory Authority (ATRA)
[3]. https://www.slideshare.net/habib_786/voice-over-ip-voip-26670219
[4]. http://www.btrc.gov.bd/
[5]. https://en.wikipedia.org/wiki/Voice_over_IP
24
References