[SIPForum-discussion] Multiple DTMF events received for a single DTMF event

Konstantin Bokarius bokarius at comcast.net
Sun Dec 9 23:29:31 UTC 2007

I have a call bridged through Asterisk to another SIP system.  Unless the
't' option in the Dial application is specified (this option is to allow the
called user to redirect the callee) each time a DTMF event is received by
Asterisk from the callee the called SIP system received 4-6 multiples of
that DTMF event.  So if the callee hit '16' on his keypad the receiving
system might receive '1111666666'.


When Asterisk dials another kind of SIP system I don't see this problem -
only when dialing a specific system (and that system's DTMF features cannot
be configured).


Has anyone experienced anything like this?

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