Cannot get video calls to work on two 9971 phones.

we are using two 9971 phones, both have the cameras enabled, and the preview video button works, but we do not get video on any calls.
camera has been enabled in the Enterprise Phone parameter.
CUCM 7.1.5.1
so, we should be fine for service pack level. anyone have any ideas? both phones are set to "auto transmit" video.

Ok, now you'll need to do a few things for real-life:
Adjust the per-call bandwidth (region) and total bandwidth (location) on CUCM. The table below will help you calculate what values to plug into the fields.
Note, there are system-wide inter-region default values under Service Parameters. Set that first and then set the fewer one-offs on the regions/locations individually.
The 9900 series phones support several different video resolutions per the data sheet on Table 6.
Bandwidth consumption for each of the supported resolutions is not well documented; however, the CSF-based clients release notes actually mention it on Table 11 provide a table. Note that CSF may not support the exact same list of resolutions so use this only as a guideline.
Do not forget to update your QoS configuration. Be careful not to undersize the video queue; this traffic is bursty unlike voice.
Cisco Call Admission Control Bandwidth Values
This table identifies the appropriate bandwidth value calculations to use with CUCM or IOS. This table was originally obtained from the Cisco Live 2010 session BRKEVT-2300 presentation.
UCM Region
UCM Location
H.323 Gatekeeper
IOS MQC LLQ Class
Audio Only Call Configuration
Audio-Only CODEC
Audio Bit-Rate plus Layer 3+ Overhead
Twice the Bit-Rate
Bit-Rate plus Layer 2+ Overhead
Video Call Configuration
Audio CODEC plus Video Call BW
Video Call BW
Twice the Bit-Rate
Bit-Rate plus 20% Overhead*
Audio Call Example (G.711)
64kbps
80kbps (One Call Allowed)
128kbps
95.2kbps (on IEEE 802.3)
Video Call Example (384k)
384kbps
(64kbps for audio and 320kbps for video)
384kbps (One Call Allowed)
768kbps
460kbps
*This is a reference value for typical Cisco video endpoints such as CUVA and the 9900 series phones. Adjustment may be required for new CODECs or other models and manufacturer equipment.
Please rate helpful replies.
Message was edited by: Jonathan Schulenberg to qualify UCM Region Video Call Example

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Cannot get video calls to work on two 9971 phones.

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