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Laszlo Olah
Beginner

Jabber sends low resolution

Dear Colleagues,

I have faced with a strange problem during a new videoconference installation.

 

The whole solution has two main components:
- UCM/IMP/CMS based infrastructure with jabber clients and conference rooms
- 3rd party call control/register server with SIP and H323 video endpoints

When I call a videoconference endpoint from jabber, the softclient sends 384x216 30fps only (but receives 720p30).
This low resolution appears only between the jabber and video endpoints, every other direction works perfectly:
- CMS room <-> video endpoint 1080p
- CMS room <-> jabber client 720p
- jabber client <-> jabber client 720p

We have only one region with 2048kbps bit rate for video and for immersive calls as well.

Does anybody any idea where can I find the solution?

Thanks,
Laci

1 ACCEPTED SOLUTION

Accepted Solutions
Ratheesh Kumar
Collaborator

Hi there

 

Are you hitting this. If then please see the workaround and see that helps you.

 

Jabber for Windows sends poor resolution video if a peer works with Multistream mode being Auto
CSCvg69691
 
Description
Symptom:
Jabber for windows has 2 problems if a peer Telepresence endpoint is working with Multistream mode being Auto.

1. Jabber for Windows sends video with a poor resolution (384*214) to a peer Telepresence endpoint such as MX800Dual. An expected behavior is to use 1280*720.

2. Jabber for Windows is unable to share its desctop to a peer Telepresence endpoint such as MX800Dual.
It doesn't happen when Multistream is OFF.

Conditions:
Call flow:
MX800Dual ---- CUCM ---- Expressway-C ---- Expressway-E --(internet)-- Jabber for Windows

Workaround:
Set Multistream mode : OFF on the peer Telepresence endpoint side.

 

 

 

 

 

Hope this Helps

Cheers
Rath!

***Please rate helpful posts***

View solution in original post

4 REPLIES 4
Nipun Singh Raghav
Cisco Employee

You would need to take a trace or a pcap to see what is being negotiated to see where the problem is. Setting the region defines the maximum rate b/w two endpoints in the region. A lower resolution/rate would still be allowed.

Nipun Singh Raghav
"We cannot solve our problems with the same thinking we used when we created them"

Thanks for the response.

I copied from the SIP trace the relevant SDP part of INVITEs and 200 OKs.

 

1st INVITE from Jabber
a=rtpmap:126 H264/90000
a=fmtp:126 profile-level-id=42E01F;packetization-mode=1;max-fs=3601;max-rcmd-nalu-size=32000;level-asymmetry-allowed=1
a=imageattr:126 recv [x=[32:1:1280],y=[18:1:720],par=1.7778,q=1.00]
a=rtpmap:97 H264/90000
a=fmtp:97 profile-level-id=42E01F;packetization-mode=0;max-fs=3601;level-asymmetry-allowed=1
a=imageattr:97 recv [x=[32:1:1280],y=[18:1:720],par=1.7778,q=1.00]

200 OK from Endpoint
a=rtpmap:126 H264/90000
a=fmtp:126 packetization-mode=1;profile-level-id=428014;max-br=2500;max-mbps=245000;max-fs=8160;max-smbps=245000;max-fps=3000
a=rtpmap:97 H264/90000
a=fmtp:97 packetization-mode=0;profile-level-id=428014;max-br=2500;max-mbps=245000;max-fs=8160;max-smbps=245000;max-fps=3000

2nd INVITE from Jabber
a=rtpmap:126 H264/90000
a=fmtp:126 profile-level-id=42E01F;packetization-mode=1;max-fs=3601;max-rcmd-nalu-size=32000;level-asymmetry-allowed=1
a=rtpmap:111 X-ULPFECUC/90000
a=fmtp:111 max_esel=1420;m=8;max_n=32;FEC_ORDER=FEC_SRTP

200 OK from endpoint
a=rtpmap:126 H264/90000
a=fmtp:126 packetization-mode=1;profile-level-id=428014;max-br=2500;max-mbps=245000;max-fs=8160;max-smbps=245000;max-fps=3000
a=rtpmap:111 x-ulpfecuc/8000
a=fmtp:111 multi_ssrc=1;feedback=0;max_esel=1450;m=8;max_n=64;FEC_ORDER=FEC_SRTP;non_seq=1

 

Is there any problem with the profile-level-id?

 

Thanks,

Laszlo

Ratheesh Kumar
Collaborator

Hi there

 

Are you hitting this. If then please see the workaround and see that helps you.

 

Jabber for Windows sends poor resolution video if a peer works with Multistream mode being Auto
CSCvg69691
 
Description
Symptom:
Jabber for windows has 2 problems if a peer Telepresence endpoint is working with Multistream mode being Auto.

1. Jabber for Windows sends video with a poor resolution (384*214) to a peer Telepresence endpoint such as MX800Dual. An expected behavior is to use 1280*720.

2. Jabber for Windows is unable to share its desctop to a peer Telepresence endpoint such as MX800Dual.
It doesn't happen when Multistream is OFF.

Conditions:
Call flow:
MX800Dual ---- CUCM ---- Expressway-C ---- Expressway-E --(internet)-- Jabber for Windows

Workaround:
Set Multistream mode : OFF on the peer Telepresence endpoint side.

 

 

 

 

 

Hope this Helps

Cheers
Rath!

***Please rate helpful posts***

View solution in original post

Hi,

 

You were right, I have upgraded the client, it works perfectly now.

 

Thanks for the resolution,

Laszlo

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