This document discusses VOIP (Voice Over IP) and summarizes two main VOIP protocols: SIP and H.323. It also discusses supporting wireless technologies for VOIP like Wi-Fi and WiMAX. Finally, it provides definitions and concepts related to networking, web hosting, and Web 2.0.

1. VOIP-Voice Over IP
Voice communications over IP such
as INTERNET
(Telephone calls)

3. Two main protocol of VOIP
SIP
H.323

4. SIP-Session Initiation Protocol
• A request response protocol.
• Dealing with request from clients and response from servers.
• Recently, the H.323 IP telephony has increasingly been replaced
by SIP protocol.
H.323
*Provides mechanism for video communication and data
collaboration
*H.323 is a recommendation from the ITU Telecommunication
Standardization Sector (ITU-T) that defines the protocols to
provide audio-visual communication sessions on any packet
network.

5. VOIP
Supports two
technologies
WI - FI WIMAX

7. WI – FI CARD
• A device that adds wireless connectivity to a
laptop or desktop computer
• Desktop PCs do not usually come with built-in Wi-Fi, especially
older models. So if you need to get wireless connectivity on your
beige box, you have a few options: you can use either USB Wi-
Fi adapter, a PCI-E Wi-Fi card, a new motherboard with built-in Wi-
Fi

8. WEB
SERVICES
HTML
#A subset of SGML
#Not a programming
language,markup
language
XML
#A meta language
#Specification for
designing markup
language
DHTML
#Dynamic HTML
#combination of
HTML,style sheet and
scripts
• *DOM
*Scripts
*CSS
*XHTML
WWW
Collection of mellions of
files stored.
WEB SERVER
WEBSITE
Webpage
WEb Browser

9. Internetworking
Host
#A computer providing data and
services
Backbone Network
A backbone is a part of
computer network that
interconnects various pieces
of network
NFS-Network File System
It is a client/server system that
allows users to access files across
a network
Some Networking
concepts

10. WEB HOSTING
Web server
FTP
Mail server
Database
server
Web browserWebsite editor
FTP client
E mail client
DataBase
administration
client-SQL

12. WEB 2.0
Web 2.0 is the name used to the describe the second
generation of the world wide web, where it moved static
HTML pages to a more interactive and dynamic web
experience.