[asterisk-users] 1.6.2.1: DTMF trouble with PSTN

[sean darcy]

Tzafrir Cohen wrote:
> On Fri, Feb 05, 2010 at 01:55:03PM -0500, sean darcy wrote:
>> sean darcy wrote:
>>> Using 1.6.2.1 with a TDM400, attached to internal analog phones and 
>>> PSTN. When I dial out to PSTN, I cannot send tones, like push "1" for 
>>> something stupid. The call itself works, but the DTMF tones fail.
>>>
>>> -- Starting simple switch on 'DAHDI/1-1'
>>>      -- Executing [6258013 at internal:1] Answer("DAHDI/1-1", "") in new stack
>>>      -- Executing [6258013 at internal:2] Dial("DAHDI/1-1", 
>>> "DAHDI/4/ww2156258013") in new stack
>>>      -- Called 4/ww2156258013
>>>      -- DAHDI/4-1 answered DAHDI/1-1
>>>      -- Native bridging DAHDI/1-1 and DAHDI/4-1
>>>      -- Hungup 'DAHDI/4-1'
>>>
>>> Any suggestions?
>>>
>>> sean
>>>
>>>
>> This is DAHDI Tools Version - 2.2.1
>>
>> Do DTMF tones work for others over dahdi? I'd file a bug, but I'd like 
>> to make sure it's not just my mistake.
> 
> Do DTMFs work on a simple call to Asterisk? A simple IVR or VoiceMail.
> 
> Can you recerd the audio before it gets to Asterisk? use:
> 
>   dahdi_monitor 1 -r rec.raw; sox -r 8000 -c 1 -s -w rec.wav
> 
> Can you hear the DTMFs in rec.wav?
> 
> Another thing to try: press a key for a few seconds. Do you hear it
> continously?
> 

I didn't understand how to actually do what you asked :( , but here's 
what I did do:

I set up the dial plan to use sip for a local number, rather than just 
dial out on PSTN over dahdi. That worked. So that must mean the DTMF 
tones get to asterisk over the internal dahdi channel, but for some 
reason are not sent out over the outgoing dahdi channel, right?

I do not hear a continuous tone if I press a key for a few seconds.

sean