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DTMF failure in Outbound Calls please help!

DTMF failure in Case of Outbound Calls from PSTN to IVR. Calls are connected to the calling party but

after IVR it fails to insert DTMF.

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VIP Super Bronze

Re: DTMF failure in Outbound Calls please help!

You need to provide a lot more information than that if you want help.

What products and versions are involved?

What is the call path including protocols at each step? (Phone Model, UCM/CME, router model/software version, PSTN circuit type)

What have you tried already?

Does DTMF fail for incoming calls as well?

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