8 Jul
2003
8 Jul
'03
1:20 p.m.
At 04:41 AM 7/8/2003, Greg Fausak wrote:
What we do is keep scan all ACC: messages and match the
INVITEs with the BYEs/CANCELs. Also, we shoot the cisco log
Messages to syslog. We match the TDM hangups to the call it was
Associated with. Sometimes we don't get a BYE, but we always get
The TDM disconnect from the Cisco. I don't know if the Cisco
BYE is lost, or, perhaps the UA connected to the Cisco? I'll see if I
Can find out.
We are using the cisco 7206vxr gear. They report
connect/disconnect
messages to syslog as well. As you note we use the TDM disconnect
to re-enforce our SIP BYE messages. Often the SIP BYE is missed.
I just want to verify I understood -- you are saying that with 7206,
a TDM disconnect is sometimes not translated in a SIP BYE but is at
least reported via syslog?
>
>
> >If ser proxy queries both side of a call at certain
> intervals, that will be ok. However, I am not sure if SIP
> supports such status query.
>
> There is a mechanism called session timer. The idea is simple: make
> UA send keep-alive messages. If none arrives,
call-stateful elements
in the
signaling path can remove call state.
Is there an example of the session timer with SER somewhere?
-Jiri