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Tandberg Duo Video

ecstillman
Level 1
Level 1

Hi,

We are having a major issue with this H.239 implementation from Tandberg called Duo Video. For those that don't know, it's the ability to put a presentation from the PC side-by-side or Picture-in-Picture with a Videoconference.

The problem we are experiencing is that it drops packets. This occurs at the WAN edge whenever we send the Duo Video from the PC; not when we send normal video.

It turns out the "Sharpness" setting on the endpoint will convert the PC image to an XVGA protocol. As soon as we begin to send that H.239 stream the packets start dropping like mad. What can it be?

If we send the entire video call 'best-effort' then the packets don't drop; however, as soon as we begin marking and matching the QoS policy, packets drop.

Also, if we set the Duo Video to “Motion” and the image is converted to a CIF protocol, we don’t drop packets but the PC image is illegible.

Anyone out there using Duo Video?? Sure could use the help.

Thanks!

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