[cisco-voip] SIP DTMF

Anthony Kouloglou akoul at dataways.gr
Thu Feb 9 17:17:03 EST 2012


What version of CUCM are you running?
In 8.5 i have seen problems when this is checked (sometimes no audio)
I had to disable it and apply an appropriate SIP profile.

BR
Anthony

On 9/2/2012 11:05 μμ, Leslie Meade wrote:
> Fixed it.. I turned use MTP on the trunk and it started to workŠ funny I
> thought it should be turned off as sending dtmf through a mtp can cause
> issues.
>
>
> Leslie
>
>
> On 12-02-09 12:56 PM, "Nick Matthews"<matthnick at gmail.com>  wrote:
>
>> Many times this is sloppy dial peers - you may be matching a different
>> dial peer on the CUBE, and one doesn't have dtmf rtp-nte enabled.
>>
>> Also - certain numbers on the PSTN will negotiate different ways,
>> which can create different scenarios for DTMF interoperability.
>>
>> There are also a few bugs on phones regarding DTMF.
>>
>> Your best bet is a packet capture on CUBE and troubleshooting from
>> there, and making sure you have dtmf on all your dial peers.
>>
>> -nick
>>
>> On Thu, Feb 9, 2012 at 3:39 PM, Leslie Meade<lmeade at salientnetworks.com>
>> wrote:
>>> No the box is not ticked
>>>
>>>
>>> From: "Matt Slaga (AM)"<matt.slaga at dimensiondata.com>
>>> Date: Thu, 9 Feb 2012 15:36:29 -0500
>>> To: Leslie Meade<lmeade at salientnetworks.com>, cisco-voip
>>> <cisco-voip at puck.nether.net>
>>> Subject: RE: SIP DTMF
>>>
>>> Do you have MTP required selected on your UCM trunk?
>>>
>>>
>>>
>>> From: cisco-voip-bounces at puck.nether.net
>>> [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Leslie Meade
>>> Sent: Thursday, February 09, 2012 3:03 PM
>>> To: cisco-voip
>>> Subject: [cisco-voip] SIP DTMF
>>>
>>>
>>>
>>>
>>>
>>> I have an intermit issues with DTMF on my SIP trunk to the providerŠ
>>>
>>> DTMF seams to be working on some numbers but not on others.. I know
>>> that the
>>> DTMF is leaving the system as it works on some numbers.
>>>
>>> How would I start to trouble shoot this ?
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>> itevomcid
>>>
>>>
>>> _______________________________________________
>>> cisco-voip mailing list
>>> cisco-voip at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/cisco-voip
>>>
>
>
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