Re: [Kamailio-Users] openSER concept question

Hello,

On 01/27/2009 05:37 PM, Alex R.S.M wrote:

Hi,

In a SIP environment with SIP end points (UAC, UAS) and several SIP proxy hubs including openSER, is each hub like openSER supposed to reply with an ACK to 200 OK

the proxy should reply with ACK only to negative replies of INVITE (hop-by-hop ACK) - for 200OK, the ACK is within DIALOG and should be generated by the caller (the 3-way handshake to initiate the call).

and BYE messages coming from end points? (i.e. openSER should stay on the call) Or each hub supposed to only propagate all messages including ACKs ?

The proxy must propagate the BYE (no reply to BYE) and ACKs for 200ok.

Cheers, Daniel