[cisco-voip] SIP DTMF

Leslie Meade lmeade at salientnetworks.com
Thu Feb 9 16:05:53 EST 2012


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
>>
>>
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>>





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