[Asterisk-Users] problems with mediatrix 1204 FXO

[Zac Sprackett]

I'm having a problem getting outbound trunking to work using asterisk
and an external SIP FXO.

7 digit dialing produces the following output:

 -- Executing Dial("SIP/mitel-fe17", "SIP/5925660 at mediatrix-1204") in new stack
 -- Called 5925660 at mediatrix-1204
 -- SIP/mediatrix-1204-645e answered SIP/mitel-fe17
 -- Attempting native bridge of SIP/mitel-fe17 and SIP/mediatrix-1204-645e
 -- Got SIP response 481 "Call-Leg Does Not Exist" back from 172.20.16.7
 == Spawn extension (internal, 5925660, 1) exited non-zero on 'SIP/mitel-fe17'

THe PSTN gateway is siezing the trunk and dialing the call.  The native
bridging seems to be the point of failure.  The caller (another sip set)
gets hung up on and the called pary hears dead air.

A sip debug log of the scenario is available here:

http://sprackett.com/asterisk.txt

extensions.conf snippet:

[trunks-local]
; local 7 digit dialing
exten => _NXXXXXX,1,Dial(SIP/${EXTEN}@mediatrix-1204)
exten => _NXXXXXX,2,Congestion

[internal]
include => trunks-local


sip.conf snippet:

[mediatrix-1204]
type=peer
host=172.20.16.7
mask=255.255.255.255
dtmfmode=inband
context=default
canreinvite=yes
qualify=yes

Thanks in advance for any adive you can give me.
-z