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Not receiving DTMF on SIP trunk-IN orOUT

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LRB45

LRB45

Programmer
Oct 5, 2005
157
US
New (<2weeks)Hosted Server Edition 11.0.4.1.0.(11) not transmitting DTMF tones in either direction. SIP line and Extensions (all SIP) are configured for RFC2833/RFC4733 DTMF support which seems to match the carrier in a trace. Option of 'Require DTMF' is unticked in Extension>VOIP

Two minutes after posting this we found the solution. Changing the DTMF support on the Line>VOIP setting to "Inband" appears to have fixed it.
 
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