Re: [Sip-implementors] sdp missing m line

2010-10-01 Thread Paul Kyzivat
Sorry about that. I remembered the wrong number. Thanks, Paul On 10/1/2010 6:02 PM, Worley, Dale R (Dale) wrote: > > From: sip-implementors-boun...@lists.cs.columbia.edu > [sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of Paul

Re: [Sip-implementors] Question about significance of header(Supported: timer, 100rel)

2010-10-01 Thread Maddipatla, Maheswara Rao (Mahesh)
Hi Rashid, The Supported header field contains a list of option tags (timer,100rel,replaces,histinfo,join ...)that are understood by the UAC or UAS . If a UAC wants to inform UAS about his capability of supporting/exchanging SIP extensions it will add those in the Supported header and sends in

Re: [Sip-implementors] Gateway Behavior when it receives a non-2xx (> 299) response with Content Type that it does not understand

2010-10-01 Thread Worley, Dale R (Dale)
In most circumstances, there is no need for the gateway to understand the response body. So it should pass the body through without modification. However, if the gateway requires to understand the response body, it should add an Accept header to all outgoing requests that restrict the responses

Re: [Sip-implementors] SRTP

2010-10-01 Thread Worley, Dale R (Dale)
From: sip-implementors-boun...@lists.cs.columbia.edu [sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of Amarnath Kanchivanam [ykamarnath@gmail.com] Can anyone provide quick reference for key generation (master key) algorithms? _

Re: [Sip-implementors] sdp missing m line

2010-10-01 Thread Worley, Dale R (Dale)
From: sip-implementors-boun...@lists.cs.columbia.edu [sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of Paul Kyzivat [pkyzi...@cisco.com] If so, then it has given the UAS few options. The UAS can answer with an SDP containing no m-lines, and th

[Sip-implementors] Question about significance of header (Supported: timer, 100rel)

2010-10-01 Thread Rashid Shakil
  Greetings,   Few quick questions regarding header "Supported: timer,100rel ". What is the significance of this header within INVITE  and how it affect voice calls. I also noticed "PRACK" been send and receive if both peering partner (media gateway) and SIP end points has 100rel enabled. Thanks

Re: [Sip-implementors] loopback address 127.0.0.1 in SDP

2010-10-01 Thread Worley, Dale R (Dale)
From: sip-implementors-boun...@lists.cs.columbia.edu [sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of Yong Following is an example of SDP that uses 127.0.0.1 as the media address. ___ It was probab

[Sip-implementors] loopback address 127.0.0.1 in SDP

2010-10-01 Thread Yong Xin
Hi, Following is an example of SDP that uses 127.0.0.1 as the media address. v=0 o=twinkle 1121345221 983211842 IN IP4 127.0.0.1 s=- c=IN IP4 127.0.0.1 t=0 0 m=audio 8000 RTP/AVP 8 a=rtpmap:8 PCMA/8000 a=ptime:20 Does anyone know what does it mean? Should it be treated as the blackhole addre