Re: [Sip-implementors] Media Port change during Hold/resume

2018-06-11 Thread swaminathan.seethara...@wipro.com
sage- From: sip-implementors-boun...@lists.cs.columbia.edu [mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of Parveen Aggarwal Sent: Friday, June 8, 2018 9:00 PM To: sip-implementors@lists.cs.columbia.edu Subject: [Sip-implementors] Media Port change during Hold/resume ** This mail

Re: [Sip-implementors] Media Port change during Hold/resume

2018-06-09 Thread Dale R. Worley
Parveen Aggarwal writes: > Is it a correct behavior to update audio media direction from recvonly to > sendrecv and updating the Video port in same re-INVITE? (Any spec reference) There are few limitations regarding the changes that a new offer can propose. Mostly, the number of m- lines may

Re: [Sip-implementors] Media Port change during Hold/resume

2018-06-08 Thread Paul Kyzivat
On 6/8/18 11:29 AM, Parveen Aggarwal wrote: Dear Experts, I am facing one scenario: 1. Make video call: Audio and video port non-zero 2. downgrade video call: audio port non-zero and video port 0 3. Network hold the call: audio:sendonly , video port 0 4. network sending re-invite without SDP,

Re: [Sip-implementors] Media Port change during Hold/resume

2018-06-08 Thread venkat ramana
Hi Praveen, AFAIK Unhold + Video Upgrade in a same INVITE is valid usecase. Searching for Spec reference. will update once I get it. Could think of one use case. 1. MO make VT call to MT. 2. Call held, Network support only audio announcement. 3. Network downgrades call to audio only and audio

[Sip-implementors] Media Port change during Hold/resume

2018-06-08 Thread Parveen Aggarwal
Dear Experts, I am facing one scenario: 1. Make video call: Audio and video port non-zero 2. downgrade video call: audio port non-zero and video port 0 3. Network hold the call: audio:sendonly , video port 0 4. network sending re-invite without SDP, User agent sending offer in 200 OK but with