How can I configure the T01 SIPTrunk in an adTran 908 to look at the to header coming from the server instead of the SIP URI?

[mcortiz]

I configured the voice trunk (SIP) as follows

voice trunk T01 type sip

  grammar request-uri host domain

  grammar from host domain

  grammar to host domain 

  description "SIPTrunk"

  match dnis "NXXNXXXXXX" substitute "1NXXNXXXXXX"

  sip-server primary #registrar# udp 5065

  registrar primary #registrar# udp 5065

  authentication username "#SIP username#" password "#SIP Password#"

  domain #registrar#

  register #registrar#

When placing an inbound call, the adTran is looking at the SIP URI instead of the TO header, however the adTran returns a 404 not found because it is looking at the SIP URI instead of the TO header coming from the SIP server.

Is there any setting that I need to change to have the adTran look at the TO header coming from the SIP server to route the call?

I dont want to register every single phone number that comes to the adTran.

Thanks!

[jayh]

There are some pretty powerful SIP header manipulation tweaks available. See Manipulating SIP Headers and Messages in AOS for exact syntax.

Another option would be to configure a registered trunk with a pilot number and have the DIDs come over that trunk (which I think may be exactly what you're attempting to do).