uri-user is deleted and added by NN4500
We have been doing a Fax test.
we made a outbound call to 02568101940 ,it's a normal signaling process at first ,but in the following message of INVITE, ,the uri-user part was added or deleted by NN4500 after the INVITE message transfered through NN4500 which might be the cause of following error "606 not acceptable".So ,is there any explanation about it ?
10.90.18.1 is the IP of Enterprise's IP-PBX
10.90.32.238 is the IP address of core side connected to IP-PBX
192.168.11.3 is the IP address of Carrier's SBC which connected to the Enterprise's NN4500
192.168.11.6 is the IP address of access side of NN4500 which reside between the Carrier'SBC and Enterprise's IP-PBX.