[VoIP] Pulse dial and T1, revisited

[John Novack]

Chad Perkins wrote:
> John Novack said:
>
>   
> The evidence would suggest you have an issue with your channel bank unless your T1 is screwing up.  The T1 card isn't involved in dialling per se. 
As was posted earlier, dial pulse and DTMF are handled differently, with 
dial pulse being detected by the channel bank as on/off hook conditions, 
and sent to the T1 card as changes in either the a or b bits. DTMF 
detection is done in Asterisk.
> I've got Adtran 750 & 850's running against an old T100P and have had misdialing that I haven't attributed to 'user' error.  Just for grins I'll give it a shot with my TS22 tonight.
>   
I am no longer sure there IS mis dialing. I need to move the 
installation out of the breadboard arena so I can do more testing. 
Varion SAYS they are shipping an advance replacement for the 4 port T1 
card, as I have had yellow alarms appear on port one only, with the 
other three stable.
>
>> These Asterisk guys don't understand much about pulse dial!
>> John Novack
>>     
>
> Though perhaps possibly somewhat true, that's a pretty broad brush you're painting 
> with ... :)
>   
Well, to broaden it even more, they don't understand some basic 
telephony . I could tick off several, but two sever, in my opinion, 
issues are lack of dial tone detection and the way transfers are 
improperly handled..


On another note, Sangoma has provided to me, for their A200 card, 
updated drivers that correctly support dial pulse.  Seems their latest 
drivers on their FTP site do not work with pulse dial correctly

John Novack


> Chad
>
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