[asterisk-users] Fw: SIP Trunk send DID or DNIS information

[A S]

Hello,


Some background before i ask the question.

I am attempting to implement a SIP trunk between an askerisk an a Mitel 5000 
system.  The mitel is giving me 404 errors when I send a call over to it even 
though the call desination is valid. The mitel also reports an error saying 
cp_dest_id is NULL.  (Call Processor destination ID is what I assume that 
means).  The Mitel has an incomming routing mechanism that says this in the 
help:

"....the system will look for the dialed number provided by DID (DDI in Europe) 
or DNIS."  In reference to incomming trunks.
 
So, I am thinking there is no DID or DNIS information being send accross.  I 
caputed packets and I did not see a DID or DNIS field in the headers.  I am 
esentially trying to make the asterisk system look like a SIP provider 
(bandwidth.com for instance) with DIDs.  I can call from the Mitel to the 
Asterisk but i just cannot get the call to come back the other direction. 
 
What does it take to send information like this (DID and or DNIS) over a SIP 
trunk?  Can it be done and what should the headers, etc actually look like when 
looking at the packets? I basically want the asterisk to talk like a SIP DID and 
Trunk service provider.
 
-Jason
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