HMR: How to remove, Allow:UPDATE from a 200 OK
Hi.
We have an issue with a CPE not responding with ACK to a 200 OK sent as a response to an INVITE.
This situation only appears if the UPDATE are not allowed in the 180 Ringing, but allowed in the 200 OK response. (If allowed also in the 180 Ringing, the CPE sends a ACK to the 200 OK).
The CPE also respond with a ACK to the 200 OK in the situation where the UPDATE are allowed in both the 180 Ringing and 200 OK.
To temporary solve this issue we would like the SBC to modify the 200 OK, removing the UPDATE from the list of allowed messages.