<< see in-line>> >-----Original Message----- >From: Sindhur Satrasala [mailto:[EMAIL PROTECTED] >Sent: 26 September 2003 20:03 >To: 'Ganesh Jayadevan' >Cc: [EMAIL PROTECTED] >Subject: RE: [Sip-implementors] request for clarification of >definition(b2bua) > >Ganesh: > >>From the RFC, > >"A back-to-back user agent (B2BUA) is a logical entity that receives a >request and processes it as a user agent server (UAS). In order to >determine how the request should be answered, it acts as a user agent >client (UAC) and generates requests. Unlike a proxy server, it >maintains dialog > state and must participate in all requests sent on the dialogs it has >established. Since it is a concatenation of a UAC and UAS, no explicit >definitions are needed for its behavior."
[Chris Boulton] 'Since it is a concatenation of a UAC and UAS, no explicit >definitions are needed for its behavior.' This is as far as the definition goes - no rights or wrongs. It is simply a concatenation of the two elements. If it wants to act as a UAC-UAC, then it can, just as a standalone UAC would be able to initiate calls. That is all it is, two UA's glued together, with an association of state between them. > >Clearly it cannot a UAC-UAC concatenation; it is a server on one side >and a client on the other side. As long as it processes requests it has >a UAS functionality. > >Best Regards, > >======================================= > Sindhur N. Satrasala > Infomedia Network Inc. Houston TX 77058 > Web: http://www.infomedia-network.com > Email: [EMAIL PROTECTED] > Ph-(281)218-0700: ex-15 Fax-(281)218-0749 >================ > > >-----Original Message----- >From: Ganesh Jayadevan [mailto:[EMAIL PROTECTED] >Sent: Monday, September 22, 2003 8:14 PM >To: [EMAIL PROTECTED] >Subject: [Sip-implementors] request for clarification of definition >(b2bua) > >Folks, > >The term b2bua has a rather narrow definition in Section 6 of rfc3261. >It refers to a UAS concatenated with a UAC for incoming requests into >the UAS. Would it be incorrect to use the term b2bua to refer to a >UAC-UAC concatenation? > >Thanks, >Ganesh > > > > > >_______________________________________________ >Sip-implementors mailing list >[EMAIL PROTECTED] >http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
