Problem with NSGate gateway
We have a NSgate 3620 sip gateway and we have faced a problem with it.
Nsgate send a REGISTER request to acme, acme resend request to softswitch but it did not resend packets from softswitch back to nsgate.
I have tried to register nsgate directly on softswitch without acme. Softswitch respond with FORBIDDEN on registration requests.
I have checked REGISTER packet and I found that it not contains 'tag' in 'from' field of SIP header.
Also I've found the same problem at asterisk bug tracker:
https://issues.asterisk.org/jira/browse/ASTERISK-19466
It looks like that on asterisk it could be resolved by setting sip