[Asterisk-Users] dtmf tones problem with unicall and E1

[Anton Krall]

|-----Original Message-----
|From: asterisk-users-bounces at lists.digium.com 
|[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
|Martin Joseph
|Sent: Friday, March 03, 2006 1:46 PM
|To: Asterisk Users Mailing List - Non-Commercial Discussion
|Subject: Re: [Asterisk-Users] dtmf tones problem with unicall and E1
|
|
|On Mar 3, 2006, at 9:48 AM, Anton Krall wrote:
|
|> Guys.
|>
|> I have a te100p with unicall and an E1 and Im having problem 
|with DTMF 
|> tones but the weird thing is, I only have problems sending the tones 
|> to certain phone numbers, anybody seen this behavior?
|>
|> Asterisk shows on the console the dtmf tone been pressed but 
|seems the 
|> other side is not getting them, and this just happens with certain 
|> phone numbers, not all..
|>
|I have seen this through my FXO, when the transmitted volume 
|is too loud and apparently the audio breaks up at the other 
|end?  This was somewhat speculation on my part,  but adjusting 
|the transmit gain down did seem to resolve it, so that was the proof.
|
|It's pretty difficult with such a huge variety of different 
|phone systems and equipment out there to get them all working 
|acceptably.  Of course my biggest issues have been with the 
|stupid phone system at my wife's workplace!  I had to retune 
|my gains for that system after I thought I was done...
|
|It's clearly a compromise,  and I suppose if the hardware (FXO in my
|case) had a GOOD auto gain adjust that might help...
|
|Marty
|
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Now, what to do when it's a te110p card? E1 in this case .. I don't suppose
you can mess with gains ... :(