High-Definition for SX10 with CUCM, Conductor and telepresence server

[Daniel Buendia Juarez]

Hi,

I have installed a telepresence solution with SX10 registered to CUCM and conference bridge ad hoc configured on telepresence server and conductor.

I have configured a SIP Trunk to ad hoc conference in conductor.

I try to make a video conference but the quality is too bad and i have set the quality content to HD.

Someone have some ideas for this problem?

Thanks!

[Patrick Sparkman]

Can you tell us what exactly the issues are, resolution, pixilation, etc?

What software versions are you running on Conductor, TelePresence Server, SX10, etc?

Is this a hardware or virtual TelePresence Server, if virtual, does it have enough resources assigned to it?

[Daniel Buendia Juarez]

Hi Patrick,

The issue is with resolution.

The SX10 software version is ce 8.2.1 Final e9daf06 2016-06-28

The Telepresence Server version is 4.4(1.16)

The Conductor version is XC4.2

Telepresence server is virtual.

[Patrick Sparkman]

Can you tell us what call rate you're using for the conference?

The SX10 Data Sheet recommends 768 kbps minimum for 720p video.

The optimal definition profile settings can be a factor as well, the SX10 admin guide doesn't contain a graph that displays the expected resolution based on call rate, but you can take a look at the SX20 CE8.2 Admin Guide on pg 43 for reference.  Note the values in the graph for the SX20 might be different than those used with the SX10.

[Daniel Buendia Juarez]

Hi Patrick,

The call rate that SX10 use is 320 kbps for a conference.

[Patrick Sparkman]

Try increasing the call rate, if you want to have HD calls, you need minimum 768 kbps to get 720p.

[Wayne DeNardi]

320 kbps is nowhere near enough to get a 720p image.  As mentioned earlier by [@patrick.sparkman], and in the guide linked earlier, you need an optimal definition profile of medium and a call rate of at least 768 kbps to get 720p30.  If you want 720p60, I'd recommend that you have at least 2.5 Mbps.

With a call rate as low as 320 kbps, you can only really expect to get a 640x360 (or somewhere around that) image.

Wayne
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[Wayne DeNardi]

How is your endpoint, TelePresence Server and site configured in your CUCM, are there any bandwidth limitations set that would be affecting the call quality?

Wayne
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[Daniel Buendia Juarez]

Hi Wayne,

There is no bandwidth limitations on CUCM.