Hi Martin,
You could use session timers. I think there is a draft (or already an RFC??) about this issue. Both clients (or at least one client and the SIP-Proxy) has to support this. The basic mechanism is the following: The Client adds a "Session-Timer"-Header to the request. In this header a timeout is defined. If both clients supports this, they have to do a "Re-Invite" within this time to keep the connection alive. If there is no "Re-Invite" the line is dead. I would not try to look at the RTP-Stream, because in our cases the RTP-Mediastream is happily directly between the Carrier (his Gateway) and the client. Looking at the RTP-Stream is only pratical for smaller solutions.
Greetings from Hamburg,
Carsten
martin@campus-merseburg.de schrieb:
Hi,
when to ip phones phone with each other via openser and i "pull out" the network cable of both, the calls will never end in our cdr's, because of the missing bye's.
any idea, how i can fix this?
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