[asterisk-users] talkoff problem - relaxDTMF is off

[Dale Noll]

About a month ago, we switched our PRIs from being run through a Nortel 
Meridan system to an Asterisk based PSTN gateway using a TE210P card. 
Since the cut over I have been getting reports of DTMF tones being heard 
by my internal users when on calls to/from the PSTN.

I have confirmed via logging that the gateway machine is detecting what 
it thinks is DTMF and regenerating it

I have relaxDTMF turned off.

Asterisk version 1.8.12.0 (also happened on 1.8.7)
Dahdi version 2.5.0
libpri version 1.4.12


Any suggestions?



A small sample from the logs.


[May 24 11:10:48] DTMF[8188] channel.c: DTMF begin 'D' received on 
DAHDI/i1/NXXNXXXXXX-37e
[May 24 11:10:48] DTMF[8188] channel.c: DTMF begin passthrough 'D' on 
DAHDI/i1/NXXNXXXXXX-37e
[May 24 11:10:48] DTMF[8188] channel.c: DTMF end 'D' received on 
DAHDI/i1/NXXNXXXXXX-37e, duration 80 ms
[May 24 11:10:48] DTMF[8188] channel.c: DTMF end accepted with begin 'D' 
on DAHDI/i1/NXXNXXXXXX-37e
[May 24 11:10:48] DTMF[8188] channel.c: DTMF end 'D' detected to have 
actual duration 64 on the wire, emulation will be triggered on 
DAHDI/i1/NXXNXXXXXX-37e
[May 24 11:10:48] DTMF[8188] channel.c: DTMF end 'D' has duration 64 but 
want minimum 80, emulating on DAHDI/i1/NXXNXXXXXX-37e
[May 24 11:10:48] DTMF[8188] channel.c: DTMF end emulation of 'D' queued 
on DAHDI/i1/NXXNXXXXXX-37e