[Freeswitch-users] DTMF Star Event Inconsistent

Anthony Minessale anthony.minessale at gmail.com
Mon Oct 27 09:19:18 PDT 2008

you should be looking for the DTMF event and not reacting to any others

Event-Name: DTMF

any other ones are not necessarily related to what you want.

On Mon, Oct 27, 2008 at 8:49 AM, Klaus Teller <klaus.teller at gmx.net> wrote:

> Hi,
> I'm calling a registered soft phone (ext. 1003) via the event socket
> interface. That is, on one side i have some Java code connecting to the
> Freeswitch event socket interface and placing calls and on the other hand i
> have the soft phone registered to Freeswitch and awaiting for calls.
> Now, when i get a call on the soft phone, i press a sequence of DTMF
> digits. The sequence of DTMF digits is intended to be read by the Java code
> via the socket interface. Most things run pretty smoothly: i can place
> calls, i can send DTMFs, i can receive them on the other hand.
> The inconsistent behavior i'm seeing is following. For DTMF-0 to DTMF-9,
> and DTMF-#, i receive two events via the socket interface. The first one is
> in CS_EXCHANGE_MEDIA state and the second is in CS_EXECUTE state. Yet for
> DTMF-* i receive inconsistent number of events:  sometimes only one single
> event in state CS_EXCHANGE_MEDIA sometimes two events as in the case of
> other DTMF digits.
> It seems there is a pattern in this "inconsistency". The odd DTMF-* (first,
> third, fifth, etc.) generate only one CS_EXCHANGE_MEDIA event while the even
> (second, fourth, sixth, etc.) generate both events.
> Can somebody help me understand what's going on?
> Thanks,
> Klaus.
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Anthony Minessale II

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