[cisco-voip] MTP allocation failure - CDDR cause code 47

[Brian Meade]

There's some scenarios where you do not get a media resource list exhausted
alert.  One scenario is where the CCM service has an incorrect count of
available resources and you just see the MTP fail to send an
OpenReceiveChannelAck or send one saying it failed to open a port.  In that
case, CUCM didn't think the media resources were actually exhausted so no
alert.

We'll need to see CCM traces for one of these calls to see what is actually
happening.  Have you tried resetting the MTP?

Brian


On Fri, Apr 18, 2014 at 10:55 AM, Erick Wellnitz <ewellnitzvoip at gmail.com>wrote:

> Ryan,
>
> When you mention stuck sessions do you mean x number of stuck sessions
> preventing further allocation of resources or this particular device has a
> stuck session?
>
> If it were the first scenario, wouldn't I get a media list exhausted alert
> from RTMT?
>
>
>
>
> On Fri, Apr 18, 2014 at 7:36 AM, Ryan Ratliff (rratliff) <
> rratliff at cisco.com> wrote:
>
>>  Stuck sessions on the MTP perhaps or leaked calls in UCM?
>>
>>  You're going to have to dig into traces to confirm.
>>
>> -Ryan
>>
>>  On Apr 17, 2014, at 10:52 PM, Erick Wellnitz <ewellnitzvoip at gmail.com>
>> wrote:
>>
>>  Well, identical except for MAC and description.
>>
>>  It worked for three days now it fails.  The last successful call
>> allocated the MTP without issue.
>>
>>  I personally tested it a dozen or so times before giving it back to the
>> user.
>>
>>
>> On Thu, Apr 17, 2014 at 9:45 PM, Erick Wellnitz <ewellnitzvoip at gmail.com>wrote:
>>
>>> Super copy identical.
>>>
>>>
>>> On Thu, Apr 17, 2014 at 4:33 PM, Ryan Ratliff (rratliff) <
>>> rratliff at cisco.com> wrote:
>>>
>>>> 47 = codec mismatch
>>>>
>>>> Is it _really_ identical?
>>>>
>>>> -Ryan
>>>>
>>>> On Apr 17, 2014, at 4:02 PM, Erick Wellnitz <ewellnitzvoip at gmail.com>
>>>> wrote:
>>>>
>>>> I have a VPN phones configured to use a trused relay point in order to
>>>> provide connectivity to other VPN phones.
>>>>
>>>> One of the phones gets fast busy and traces show MTP allocation
>>>> failure.  This was the only phone trying ot utilize this MTP and is
>>>> identical to other VPN phones that work as expected.
>>>>
>>>> Any ideas?
>>>>
>>>>
>>>> Thanks!
>>>>
>>>>
>>>> _______________________________________________
>>>> cisco-voip mailing list
>>>> cisco-voip at puck.nether.net
>>>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>>>
>>>>
>>>
>>
>>
>
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/cisco-voip/attachments/20140418/049be201/attachment.html>