Maxim Sobolev wrote:
Folks,
It is not really ser-specific problem, but I think that it is a good place to ask. We are having problems with getting BT/HT working with our system - phones with firmware versions 1.0.4.26 and 1.0.4.17 don't send ACK for final 200 OK if the in-band alerting (183 session progress) is enabled in the remote UA. Can somebody confirm this problem? And it seems that version 1.0.3.81 is OK, but unfortunately there is no way to perform firmware downgrade.
Nailed it down - the damn thing doesn't like when To tag in provisional responses differ from one in final one.
-Maxim