[OpenSER-Users] SCTP support

Daniel-Constantin Mierla daniel at voice-system.ro
Thu Aug 2 17:58:42 CEST 2007


Hello,

courtesy of Glenn Marmon, Connecticut College Class of 2007, who 
submitted the patch, OpenSER includes now support for SCTP (Stream 
Control Transmission Protocol). It completes the list of the possible IP 
transport layers that could be used with SIP in OpenSER.

You can find details about SCTP at: http://www.sctp.org/

Basically, it is a reliable transport protocol, like TCP, but provides a 
number of functions that are critical for telephony signaling transport 
(read more about the benefits: http://www.ietf.org/rfc/rfc3286.txt).

If you have the chance to own a SCTP-aware SIP phone and can test, 
please provide us feedback on the mailing lists -- also, let us know the 
name and type of any SIP phone with SCTP support that you know. Hope 
SCTP will gain more and more space, as it seems to be the right protocol 
for VoIP/IM&P signaling, where UDP cannot cope very well with huge 
messages and TCP adds too much overhead.

Cheers,
Daniel






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