Hi everybody
I have a working installation
of OpenSER (Proxy A). In this installation, the ACK
messages are delivery without any problem through loose_route() and t_relay(). Then, I installed a second OpenSER
proxy (Proxy B) and configure both servers to replicate REGISTER messages with t_replicate(),
and it works fine. I made a lot of captures to check the replication process
was working fine and also to check the NAT pings; each proxy takes care of the NATed clients it receives sending OPTIONS message periodically.
I’m using mediaproxy to support NATed clients; to avoid each proxy starting a media session
when it find a NATed client I used the following rule:
a proxy receiving messages from another proxy never starts a media session, the
proxy that sends the message takes care of that.
Having two registered clients
(Client A in Proxy A and Client B in Proxy B), I start making calls from Client
A to Client B, but I found something in the captures. All the messages flow
correctly, except the final ACK message sent by Client A to Client B. Proxy A
receives this message and pass it to Proxy B, but Proxy B never deliver it to
Client B. Of course, the media session never starts. I was searching info about
this situation and I found an email respond from Bogdan
about using t_newtran() to process ACK messages, I tried, but it didn’t
work.
Has anybody ever had the same
problem? Is there a special way to deal with ACK messages when we’re
working with replicated proxies?
I’ll appreciate any
help.