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SIP: Understanding the Session Initiation Protocol by Alan B. Johnston

SIP: Understanding the Session Initiation Protocol Alan B. Johnston ebook
Publisher: artech-house
ISBN: 1580536557, 9781580536554
Page: 308
Format: pdf

Even though this type of investment will save a lot of money, it is none the You have to understand that unlike other delivery systems, SIP works independently of the type of session or the media used. Internet Communications Using SIP: Delivering VoIP and Multimedia Services with Session Initiation Protocol (by Henry Sinnreich, Alan B. Session Initiation Protocol (SIP) is becoming more prevalent in voice and video communications products, but not everyone is advising corporate buyers to look for this standard when buying telecommunications equipment. Standards Track [Page 40] RFC 3261 SIP: Session Initiation Protocol June 2002 traversed understand that extension, it MUST insert a Proxy-Require header field into the request listing the option tag for that extension. The Cisco Unified Communications Manager supports the popular Session Initiation Protocol, or SIP. SIP, otherwise called Session Initiated Protocol has actually commonly been used almost exclusively in written and spoken telecom industry lingo. SIP, which stands for Session Initiated Protocol, unifies both voice and video over standard IP-based networks. The growing thirst among communications providers, their partners and subscribers for a new generation of IP based services is now being quenched by SIP – the Session Initiation Protocol. The contents of this assignment have been taken from the web and arranged in a manner so that this assignment can provide the basic understanding about the SIP. SIP (the Session Initiation Protocol) is a protocol used by some VoIP servers such as asterisk and ekiga.net. New to the wide world of Session Initiation Protocol (SIP)? What is SIP, and how does it work? If you have heard about Session Initiation Protocol (SIP) and are considering contracting this type of call control protocol for your company, one of the best things you can do is make an informed decision. An idea born in a computer science laboratory less than a .. The answer to this question continues to evolve and is influenced by one's understanding of either telecommunications or packet switching. In this article, Sean Wilkins will briefly demystify SIP and its network elements. However, before migrating your current telecom system to SIP, it's important to understand that some companies are much better matched for a smaller sized company VoIP or T-1 voice option. To work around these limitations the classical solution is to use a SIP server interposed between A and B. A great broker will not oversell you and make sure one of the other types of options would not much better fit you. This addition of SIP support opens up a whole new world of voice possibilities. I like to begin first with the definition of SIP or Session Initiation Protocol.