[asterisk-users] DTMF Corruption Problem

[mail-lists]

> Also, I am not using a zaptel timer.  Could this possibly be causing
> problems with DTMF??
I really don't know for certain but here's what I experienced: When 
calling out asterisk gives the option to allow called numbers to 
transfer by hitting the '#' by putting 'T' (or 't'?) as an option in th 
dial string. This would very seldom work. I could hit the '#' on the 
called phone it would say 'extension' but would always reply with 'not 
valid extension'

I recently upgraded to 1.2.12 and noticed that there was no ztdummy 
running! I compiled my own zaptel installed it, loaded the modules on 
boot and now the transfer works perfectly.

Also: my moh wasn't working for some reason. After I installed the 
ztdummy module it works too..

I'm not sure whether the transfer issue was fixed by using the ztdummy 
module or by the asterisk issue but my point is that you should always 
have the ztdummy module installed if possible.

Just my .02. Hope it helps