[Freeswitch-users] bind_meta_app and bind_digit_action with inband DTMF?

Dmitry Sytchev kbdfck at gmail.com
Wed Dec 22 19:01:30 MSK 2010


Hi! We are trying to migrate our Asterisk system to Freeswitch, and
faced with some trouble:

We use inband at user side, and want Freeswitch to regenerate it to
RFC2833 before sending to media gateway.

When user endpoints use rfc2833 bind_meta_app and bind_digit_action
work as expected, but not with start_dtmf (as needed to parse inband
DTMF). We can't use rfc2833 DTMF on user endpoints as there seems to
be a problem in freeswitch or our media gateway leading to audible
DTMF duplicates.

When user endpoints are set to inband, I see messages on console about
DTMF detection:

2010-12-22 18:50:30.802253 [DEBUG] switch_ivr_async.c:2089 DTMF DETECTED: [*]
2010-12-22 18:50:30.803253 [DEBUG] switch_rtp.c:1985 Send start packet
for [*] ts=503795131 dur=160/160/2000 seq=43701
2010-12-22 18:50:30.823282 [DEBUG] switch_rtp.c:1921 Send middle
packet for [*] ts=503795131 dur=320/320/2000 seq=43702
...skip...
2010-12-22 18:50:30.923393 [DEBUG] switch_rtp.c:1921 Send middle
packet for [*] ts=503795131 dur=1920/1920/2000 seq=43712
2010-12-22 18:50:30.923393 [DEBUG] switch_rtp.c:1921 Send end packet
for [*] ts=503795131 dur=2080/2080/2000 seq=43713
...skip...
2010-12-22 18:50:31.242695 [DEBUG] switch_ivr_async.c:2089 DTMF DETECTED: [1]
2010-12-22 18:50:31.242695 [DEBUG] switch_rtp.c:1985 Send start packet
for [1] ts=503798651 dur=160/160/2000 seq=43732

So digits are received but no in-call action launched by
bind_meta_app. I tried start_dtmf before and after bind_meta_app but
with no success. Is there a way to make inband dtmf launch in-call
actions while transcoding it to RFC2833 on trunk side?
I can't make inband dtmf trigger my actions :(

-- 
Best regards,

Dmitry Sytchev,
IT Engineer



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