Re: [Sip-implementors] Sip-implementors Digest, Vol 121, Issue 5

2013-04-15 Thread Zhang, Tao
Sent from my Android phone using TouchDown (www.nitrodesk.com) -Original Message- From: sip-implementors-requ...@lists.cs.columbia.edu [sip-implementors-requ...@lists.cs.columbia.edu] Received: Monday, 15 Apr 2013, 1:34 To: sip-implementors@lists.cs.columbia.edu [sip-implementors@lists

Re: [Sip-implementors] how to respond to a SDP offer including unsupported media type

2013-04-15 Thread Brett Tate
If you want to reject video (but answer audio), see RFC 3264. You can use port 0. If you want to reject the INVITE, send 488 (or 606) with Warning header (code 304); see RFC 3261. I also think that there is an RFC which allows the caller to request that the called not answer unless able to an

[Sip-implementors] how to respond to a SDP offer including unsuported media type

2013-04-15 Thread Jing Jiang
An endpoint receives an invite including audio and video offer, but the endpoint has no video capability. How does the endpoint respond this offer? It seems to me there is a RFC to talk about it, but I just could find it. RFC 6337 talks about behavior on receiving SDP with c=0.0.0.0. Is it the

Re: [Sip-implementors] Query regarding ABNF syntax for SIP message headers

2013-04-15 Thread Paul Kyzivat
Gaurav, This reply is incorrect. Please see Brett's reply for the correct answer. Thanks, Paul On 4/15/13 1:39 AM, Gaurav Gupta wrote: > Hi Suman, > > Via: \r\n > SIP/2.0\r\n > /[transport] > [local_ip]:[local_port];branc

Re: [Sip-implementors] Query regarding ABNF syntax for SIP message headers

2013-04-15 Thread Brett Tate
> Is the below message correct or not? Yes. HCOLON and SLASH accommodate the atypical useless line wrapping and tabs of your example. > Via:\r\n > SIP/2.0\r\n > /[transport] > [local_ip]:[local_port];branch=[branch]\r\n > From the above syntax it se