Is it possible to modify the contact header on ingress call
I am looking for the proper way to update a contact header with information given in the invite. The system returns a 300 redirect to the Acme Packet with the original number and a tdnis field that I would like to use as a replacement for the dnis. The uri-hosts will change depending on what grouping the original uri-user is found under in the lookup table the original server finds.
Original Message
SIP/2.0 300 Redirect
Via: SIP/2.0/UDP 10.10.2.171:5060;branch=z9hG4bK-159628-1-0
To: sut sip:13218837957;rn=;npdi=yes@10.10.2.101:5150
From: sip:3218366020@10.10.2.171:5060;otg=10;tag=159628SIPpTag001
Call-ID: 1-159628@10.10.2.171
CSeq: 1 INVITE
Contact: sip:13218837957@10.10.5.51;dtg=11;tdnis=9107957;tani=3218366020;rtid=10;jd=0;md=910,sip:13218837957@10.10.5.52;dtg=12;tdnis=9107957;tani=3218366020;rtid=10;jd=0;md=910,sip:13218837957@10.10.5.53;dtg=13;tdnis=9107957;tani=3218366020;rtid=10;jd=0;md=910,sip:13218837957@10.10.5.54;dtg=14;tdnis=9107957;tani=3218366020;rtid=10;jd=0;md=910