Hey,

I have UAC that registers to a UAS, after registration the UAS sends me an OPTIONS request, what should I answer it?

only the audio media streams?

Update I:

Allow me to explain myself better... if I want to invite someone to a session I USE the INVITE method and negotiate the media then, for that specific session. But once I register to the server, and it asks me for OPTIONS, then what should I supply, everything my client supports? once I answer it would it deduce that every INVITE I would request from now on would use these medias? or would I need to supply new media with every request?

Update II:

Hi Wiz, I was in the process of building a negotiation system, so i tried it out and replied the UAS here is the sort dialog we had:

OPTIONS sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP xx.xx.xx.xx:5060;branch=z9hG4bK45b197cb;rport=5060;received=xx.xx.xx.xx
From: "Unknown" <sip:[email protected]>;tag=as66cf26df
To: <sip:[email protected]>
Contact: <sip:[email protected]>
Call-ID: [email protected]
CSeq: 102 OPTIONS
User-Agent: Freeswitch 1.2.3
Max-Forwards: 70
Date: Sat, 05 Jun 2010 12:06:43 GMT
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,SUBSCRIBE,NOTIFY,INFO
Supported: replaces
Content-Length: 0

OPTIONS In Response To 102:

SIP/2.0 200 OK
Via: SIP/2.0/UDP xx.xx.xx.xx:5060;branch=z9hG4bK45b197cb;rport=5060;received=xx.xx.xx.xx
From: "Unknown" <sip:[email protected]>;tag=as66cf26df
To: <sip:[email protected]>
CSeq: 102 OPTIONS
Call-ID: [email protected]
Allow: INVITE,CANCEL,ACK,BYE,OPTIONS
Content-Type: application/sdp
Content-Length: 248

v=0
o=310 4515233118481497946 4515233118481497946 IN IP4 10.0.0.1
s=-
i=Nu-Art Software - TacB0sS VoIP information
c=IN IP4 10.0.0.1
m=audio 40000 RTP/AVP 0 8 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-event/8000

This response caused the server to stop sending me the options request, does this means I can only use these parameters with the server now? or as you said, it does not matter?

Thanks, Adam.