Routing of SUBSCRIBE request via SD
In our lab enviorement, we are trying to register a SIP MTA using NET-NET 6300 SD, the SD forward the REGISTER request from SIP MTA to IMS core but for SUBSCRIBE request, SD forward the request back to SIP MTA. Scenario is as follows,
1. SIP MTA register successfully via egress (SIP MTA) and ingress (IMS core) realm
2. SIP MTA send SUBSCRIBE request through egress realm, instead of forwarding it to ingress realm. The SD forward the SUBSCRIBE request back to SIP MTA
Wondering what configuration require so that SD will take care of incoming SUBSCRIBE request and forward that to IMS core. Does the routing for SUBSCRIBE request is different then REGISTER using same REALM ?