[Sip-implementors] renegotiate rtp <--> srtp in mid call

2019-09-10 Thread J C Sunil Kumar Reddy
Hi All, Can we renegotiate a rtp call to srtp and vice-versa in midcall? May be with re-INVITE or UPDATE message? Is it a valid scenario if srtp is not mandated? In my scenario, server and client both supports RTP and SRTP and initially call is negotiated to srtp call. Midway, server is sending a

Re: [Sip-implementors] Query on Contact header parameter

2014-03-21 Thread J C Sunil Kumar Reddy
/ "_" / "+" / "`" / "'" / "~" ) > > > -Original Message- > > From: sip-implementors-boun...@lists.cs.columbia.edu [mailto:sip- > > implementors-boun...@lists.cs.columbia.edu] On Behalf Of J C Sunil > &g

[Sip-implementors] Query on Contact header parameter

2014-03-21 Thread J C Sunil Kumar Reddy
Hi All, I need to send a proprietary parameter in contact header in an INVITE message to other end. Something like this: Contact: "Sunil" ;category:strvalue Here "category:strvalue" is my proprietary parameter. Where "category" is a param name and "strvalue" is the value. What does the SIP stan

[Sip-implementors] Silence Suppression for G711

2013-11-13 Thread J C Sunil Kumar Reddy
Hi, How to say to other end that Silence Suppression is supported in G729 and not supported in G711? Because if annexb is not present in SDP for G729, then it means that Silence Suppression is supported(i dont know why it is reverse). putting like this below will work In the INVITE ? m=audio 491