Solved: Tandberg Endpoint as H.323 Client in CUCM 7.1.5

dtran · ‎05-20-2010

I have several Tandberg 95 Edge MXP endpoints configured as H.323 clients in CUCM 7.1.5b su2. I noticed there is a noticable difference in video quality when dial by 4-digit extension vs direct IP between two endpoints. Below is the call detail status for 4-digit extension dial vs IP direct dial.

- 4-digit dial

Video protocol: H.264

Audio codec: G.722

Video format: CIF

Call connects at 768k

- IP direct dial

Video protocol: H.264

Audio codec: Aac-ld

Video format: w448p

Call connects at 1152k

Both of these endpoints are configured in the same Region in CUCM and I allow up to 1536k per call but for some reason calls can only connect at 768k when dial by 4-digit extension. Has anyone run into this scenario and experience the same issue ? Is there any setting in CUCM that can be tweak for video calls to connect beyon 768k ?

Thanks in advance !!! I appreciate any inputs/suggestions

D.

fossilev700 · ‎10-08-2010

Did you get the issue resolved? What documentation did you use for the integration with UCM?

thanks,

Chris

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fossilev700 · ‎10-08-2010

Did you get the issue resolved? What documentation did you use for the integration with UCM?

thanks,

Chris

dtran · ‎10-08-2010

Hi Christopher,

Unfortunately I am still having the issue. The issue is most likely on the Tandberg side, I had Cisco checked out the CUCM side and all was checked out ok no issue on CUCM. I might have to upgrade the software on the endpoint and will see if that helps.

I don't have any document on the integration with CUCM to share with you. But the integration is pretty straight forward. To be able dial by extension number between Tandberg endpoints, you need to configure the endpoint in CUCM as H.323 client unless your endpoint can support SIP or SCCP.

Let me know if you further questions !

D.

fossilev700 · ‎10-08-2010

H323 gateways calculate bandwidth differently. Each stream is allocated bandwidth. For a 2-way video call call bandwidth is 2 X 768 = 1536 per call. Have you tried setting the call bandwidth at 3072?