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More about SIP

What does SIP do?

Basically SIP is a protocol used to locate users on the Internet and establish sessions between them. A session can be anything from a simple chat to a collaborative multi-media conference session. SIP does not know about the details of the established session, it just initiates, terminates and modifies the session. Most other protocols used on the Internet today handle communication between a user (client) and a service server. SIP has the ability to initiate peer-to-peer sessions between two users.

SIP based services often use a single address for all communications, i.e. the SIP address. The SIP address looks and work exactly the same way as an ordinary e-mail address (e.g. sip:name@server.com).

Why use SIP?

The strength and market acceptance of the SIP protocol has been proven by the launch of Windows® XP by Microsoft®, where Real Time Communication (RTC) functions are SIP-based. The new Messenger for Windows® includes SIP-based telephony, presence, instant messaging and voice/video communication. Within a year, over 50 million people all over the world are expected to use SIP-based person-to-person IP communication.

Using SIP, IP telephony, video, presence and instant messaging becomes Internet services, just like e-mail or WEB-surfing. On top of this basic functionality and universal connectivity over the Internet, service providers, such as ISPs, can add services such as interoperability with the old telephone network, voice mail, email-like and numeric addresses and much more.

The big and important use of IP telephony, where IP telephones connected to the Internet, really can reach each other globally, and where any ordinary phone also can be reached easily is only now being realized.

More information:

SIP Details

Related Topics :

More About SIP
The Built-in SIP Support
SIP Services
SIP Server
SIP Configuration