asterisk users - Oct 2008 - DTMF issue

Dear All,

What could be the problem if I try to send DTMF in RFC2833 format to my
asterisk server and it replies back with 603 error message?

Regards
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Dear All,

I have the following scenario:
My customer dial a DID number and it'll be forwarded to my asterisk server
by the below trunk defined in sip.conf:

[sip_proxy1]
type=peer
context=stations
host=81.201.82.112
disallow=all
allow=g729
allow=alaw
allow=ulaw
dtmfmode=RFC2833
relaxdtmf=yes
canreinvite=no

The above trunk will use the context stations defined in extensions.conf as
follow:


[stations]
exten => _X.,1,Gotoif($[${EXTEN} = 112] ? 21)
exten => _X.,2,DeadAGI,a2billing.php|3
exten => _X.,3,Wait,2
exten => _X.,4,Hangup
exten => _X.,21,AGI,a2billing.php|3
exten => _X.,22,Hangup

The System will ask the user to enter his PIN number...The problem is that
sometime the system recognize the PIN entered and sometimes the PIN is not
recognized...I'm using RFC2833 as dmf mode...

I would like to know if my config is correct or I need o add something to it
or there is a BUG on asterisk server regarding DTMF?

Please note that I'm using Asterisk 1.4.21.2
Regards
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