[cisco-voip] Strange 7970 Problem

[Peter Slow]

James,
   Please try adding the command "bearer-cap speech" under the
voice-port  on your h.323 GW where the call hits the PSTN. This will
likely be he solution to your issue. Your video caps are probably
causing CUCM to request the "Unrestricted Digital" bearer cap, and the
PSTN is probably responding with cause code 58, unless your PRI is set
up to handle video/data calls on the PSTN side.

Try this:
whosimawhatsis(config)#voice-port 0/0/0:23
whosimawhatsis(config-voiceport)#bearer-cap speech

Andre,
   "Retry Video Call as Audio" only has to do with locations bandwidth
- if there's not enough bandwidth for a video call, that checkbox
causes the call to be tried again without the bandwidth requirement
for the video stream. I beleive use of that checkbox also effectively
disables AAR for the initial video call.

>From the 7.x SRND: "When this option is activated (checked), if there
is not enough bandwidth to reach the
device (for example, if the Unified CM regions or locations do not
allow video for that call), then
Unified CM will retry the call as an audio-only call. When this option
is deactivated (unchecked),
Unified CM will not retry the call as audio-only but instead will
either fail the call or reroute the call by
whatever automated alternate routing (AAR) path is configured."

-Peter


On Fri, Feb 19, 2010 at 6:52 AM, malhatma <malhatma at gmx.net> wrote:
> Hi James,
>
> did you check "Retry Video Call as Audio" in phone config?
> Some Q931 debugs of the pstn gw would be helpful.
>
> hth
> andre
> Am 19.02.2010 12:18, schrieb James Dust:
>>
>> I have a user who has recently been given a VT advantage camera, and
>> since this has happened he has lost the ability to dial externally via
>> his local H323 gateway. He simply gets an engaged tone on every external
>> call he makes.
>>
>> I initially thought this was something someone had done to the user’s
>> phone, so I deleted it and started again but I got the same thing. As
>> soon as I add ‘video capabilities’ to the users phone he looses the
>> ability to dial externally.
>>
>> Has anyone seen this before, and if so what am I missing?
>>
>> Thanks in advance.
>>
>> James Dust
>> Team Leader
>> ICT Network Infrastructure & Communications Department
>> Charles Stanley & Co Ltd
>> Tel: 020 7149 6314
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