[Kamailio-Users] openSER concept question

[Daniel-Constantin Mierla]

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

-- 
Daniel-Constantin Mierla
http://www.asipto.com