It's not your fault.
 
DTMF and SIP simply do not seem to get along.
 
For some light reading, try RFC-2833. Don't expect it to solve your problem,
though. I have spent countless hours trying to get DTMF to work properly
between an SPA3000, a Polycom 501, and Asterisk. It was like playing
whack-a-mole; solve one issue and another would pop up.
 
I finally gave up and yanked the SPA3000 in favour of a Sangoma board. Not
because I felt it was the Sipura's fault per se, but simply because I needed
to remove at least one SIP device from the equation.
 
For whatever reasons, DTMF over IP is a pain.
 
Regards, and sorry that I could not provide a solution, but at least you
know you're not alone. I have yet to hear from someone who has cracked the
DTMF nut.
 
Jim.



--
Jim Van Meggelen
[EMAIL PROTECTED]
HYPERLINK
"http://www.oreillynet.com/pub/au/2177"http://www.oreillynet.com/pub/au/2177

"A child is the ultimate startup, and I have three.
This makes me rich."
                    Guy Kawasaki
--


 
 


   _____  

From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ian
Service
Sent: February 18, 2006 11:17 PM
To: TAUG
Subject: [on-asterisk] Persistent DTMF Issue


Hey guys,

IRC seems to be useless for me on this one, so I figured I'd try you guys
before the bugs.digium folk.  I'm running latest SVN on two asterisk
machines.

When connecting from any SIP device (tried a couple different phones) via
SIP to my local box then via IAX2 to my main box, the main box doesn't
recognize DTMF tones. 

SIP phone -----SIP----> * box 1 ----IAX2----> * box 2 ---> VoicemailMain

Only the first digit entered is recognized and so I always get "Incorrect
password '1' for user '2' (context = default)"  1 and 2 being the first
digits of the password and mailbox respectively.

Any thoughts?  Ability to replicate?

- Ian



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