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Old 05-01-2013, 09:38 AM
petilliw petilliw is offline
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Join Date: May 2011
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Default Dtmf

I have users complaining that when the dial out over PSTN to various far ends that require passcodes or prompts that the other end is not recognizing the DTMF. The call is able to be made fine and connects, but anytime the user has to do anything regarding entering a passcode etc.. it does not recognize and they cannot proceed. These users are using 9630 IP phones and calls going out over ISDN PRI circuits. Is this a carrier issue.. physical issue with the MM ??
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Old 05-06-2013, 12:23 AM
dleona dleona is offline
Join Date: Dec 2011
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Please try to work on changing "TSC Supplementary Service Protocol: to "a" or "b"..Or post your signaling and trunk config so that we can check.
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Old 05-14-2013, 11:02 PM
suny suny is offline
Join Date: Mar 2010
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This may have to do with configurations or FW/SW bugs. Please make sure you are on latest Medpro/DS1/IPSI FWs and CM latest patch. Please also refer to the following KB articles for various configurations you need to verify. If you cannot view the KBs please reply to this thread and let us know.

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Old 06-04-2013, 08:56 AM
sfrank sfrank is offline
Join Date: Apr 2011
Posts: 4
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Had this issue a few times. I opened a ticket with our carrier and it started working again. I would try routing the call through a different carrier via routing/ars and see if it works or not to determine if its a carrier issue.
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