[Freeswitch-users] Freetdm DTMF
shane at longwhitecloud.com
Thu May 10 00:46:22 MSD 2012
Have a situation where I have a call between a SIP phone and a FreeTDM
channel. Pushing *3 on the analog FreeTDM phone is detected and this is
bound to a dialplan extension (attended transfer) that does a read():
<action application="read" data="3 3 'tone_stream://%(10000,0,350,440)'
digits 30000 #"/>
However pushing further digits on the analog phone ie. extension number of
phone we wish to do an attended transfer to , doesn't result in the DTMF
being detected. Note that this all works the other way around ie. using
the SIP phone.
When the *3 digits are pushed on the analog phone I see the logs report:
ftdm_io.c:3463 [s2c1][1:4] Queuing DTMF * (debug = 0)
mod_freetdm.c:702 Queuing DTMF [*] in channel FreeTDM/2:1/
ftdm_io.c:3463 [s2c1][1:4] Queuing DTMF 4 (debug = 0)
mod_freetdm.c:702 Queuing DTMF  in channel FreeTDM/2:1/
When the further keys are pushed ftdm_io reports nothing.
I have tried inserting a start_dtmf before the read() but it had no effect.
Any thoughts as to why DTMF isn't being seen from the analog phone after
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