SIP description
From the telephone to the SIP
Article REF: TE7415 V1
SIP description
From the telephone to the SIP

Author : Philippe MARTINS

Publication date: May 10, 2008 | Lire en français

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4. SIP description

4.1 History and evolution of standards

SIP was initially defined (in 1996) as part of the MBone group (establishment of IP multicast sessions). The first version of the protocol (version 1) was standardized in 1997. SIP version 2 was published in March 1999 (RFC 2543), then updated in June 2002 (RFC 3261). Numerous standards have gradually been added to the basic SIP standard [15][16] .

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