Conductor + vTPS audio-only confs

[Andre Castro]

Dear colleagues,

We are working on a telepresence deployment using CUCM, Conductor, vTPS and TMS for conference scheduling.

The endpoints are all either SX20s or Jabber clients.

Whenever we start the conference through TMS, we can only have a unique video participant. All other participants are set to audio-only when they join in as you can see in the snapshot below taken from the conferences page in vTPS.

Conductor is using no license keys, since it would be only for this single vTPS server and as far as we know, it should work limited to it.

Thank you in advance for any inputs.

Regards

Andre Castro

[Andre Castro]

I have also got the protocols log from the vTPS and the Invite seems fine with the video properties in its SDP, but I can see the 200OK from Conductor:

-RX:200_OK
-SIP
SIP/2.0 200 OK
Via: SIP/2.0/TLS 10.103.210.12:5061;branch=z9hG4bKd2d12144;received=10.103.210.12
Call-ID: d659f00-5ca17d5f-5895a-fc8260a@10.38.200.15
CSeq: 2 INVITE
Remote-Party-ID: "VC-GER CEAM" <sip:3203@10.38.200.15>;privacy=off;screen=no;party=called
Contact: <sip:10.103.210.13:5073;transport=tls>
From: "Conferencia 399910000" <sip:88800429@10.103.210.12>;tag=C2CFF70DC00D0002
To: <sip:3203@10.38.200.15>;tag=1791145~49296541-13ed-4cac-afe9-36e0119f0c55-75845653
Allow: INVITE,ACK,BYE,CANCEL,INFO,OPTIONS,REFER,SUBSCRIBE,NOTIFY
Server: TANDBERG/4356 (XC3.0.3-b2bua-1.0)
Supported: X-cisco-srtp-fallback,replaces,timer
Require: timer
Session-Expires: 1800;refresher=uas
Allow-Events: kpml
Content-Type: application/sdp
Content-Length: 448

v=0
o=tandberg 0 1 IN IP4 10.103.200.85
s=-
c=IN IP4 10.103.200.85
b=AS:64
t=0 0
m=audio 30926 RTP/AVP 108 101
a=rtpmap:108 MP4A-LATM/90000
a=fmtp:108 profile-level-id=24;object=23;bitrate=64000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=sendrecv
a=rtcp:30927 IN IP4 10.103.200.85
m=video 0 RTP/AVP 0 <<<<<<<<<<<<<<<<
m=video 0 RTP/AVP 0 <<<<<<<<<<<<<<<<
a=content:slides
m=application 0 UDP/BFCP *
m=application 0 RTP/AVP 0
m=application 0 UDP/UDT/IX *

Regards,

Andre

[Andre Castro]

We found out that due to DTMF negociation (we had it set to both 2833 and oob), CUCM was summoning MTP for the calls thus the no video condition.

[Felipe Braga]

Iaaaaeeeee... sozinho!