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DTMF Problems


cpshort
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DTMF - it is hit or miss as to when it works making it impossible to navagate phone menu's when calling Credit Card Co, even My sip provider SOTEL - I have had the problems with aastra 6757i, snom 820 & a pap2 adapters. Any help would be great - I like the PBXnSIP system.

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DTMF - it is hit or miss as to when it works making it impossible to navagate phone menu's when calling Credit Card Co, even My sip provider SOTEL - I have had the problems with aastra 6757i, snom 820 & a pap2 adapters. Any help would be great - I like the PBXnSIP system.

 

There are some options as to whether to send DTMF in-band or out-of-band in the trunk settings. I experienced similar issues both ways and ended up opening a ticket with the SIP trunking provider. The ITSP ended up moving my trunk to another one of their servers which corrected the issue. Check with your provider and see what they can come up with.

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