SX20 to MCU4520 H.239 at H.264/1080p - Howto

[Juergen Hornung]

According to Datasheets of MCU and Endpoint both systems are able to do presentations at 1080p at H.264. But all tests resulted at 720p and H.263+.

Can you recommend a setting to do 1080p with H.239?

Thanks

Juergen

[Martin Koch]

Question in the other direction

* whats the call rate set on the endpoint and the max bandwodth on the mcu, any link/pipes limiting?

* how much bandwidth was used per call leg, check on the mcu (I would try it with >1.5mbit)

* which and how many other endpoints were present? (just 3 SX20s?)

* what is the resolution used on the presenting source?

* what the content settings on the conference you use? (I would use hybrid, automatic (or you can sure try lock it to  h.264), enabled, all resolutions and no minimum)

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[Juergen Hornung]

Hi Martin,

its not about "Minimum outgoing bitrate" - its about Content mode, this must be set to "Passthrough".

After that SX20 sends H.239 at FullHD/H.264/30fps to MCU.

It seems that the MCU45xx series is unable to support FullHD in Hybird or Transcoded mode - is that true?

(Maybe some of the Cisco guys can clarify that).

Best regards

Juergen