if you make a dialplan that plays a file but does not answer then it will happen in the early media stage.
DTMF working during the call is dependent on the other side. We certainly support it but some carriers purposely do not allow DTMF during progress since running an ivr in progress stage means you are not paying them any money for the calls.
Hi All,
Is there a way in freeswitch, such that we can play sound and receive a DTMF
from the end user without actually answering a call like in session progress
stage.
Basically, the system should accept the call and play a progress tone during
call progress (SIP 183). The system should be able to collect DTMF input.
All this should happen while in SIP 183 (Progress) and the call shouldn't
change its state to CONNECT, which means, no 200 OK should be issued to the
use via the system. This is more like a IVR based system, however it all
happens during call progress and not after connect.
Can anyone suggest any idea about this situation?
Thanks in advance.
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