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From: [email protected] 
[[email protected]] On Behalf Of Hiral Patel 
[[email protected]]

We have a regular occurrence with our current SIP trunk where now and then the 
network responds with a TRYING event after the sipXecs server times out the 
call.

Does anyone know of any timer that can be adjusted to delay sipXecs from timing 
out the call?

We see the following in an example I have. sipXecs sends an invite to the sip 
trunk no response is received so sipXecs send a further 2 INVITES, after approx 
1.5 seconds an internal 408 ITSP Timed out is seen.

The problem seems to be that the TRYING response to the INVITE is received late 
approx. between 0.01 to 0.08 seconds after the time out which causes a call 
failure.

I would like to know if there is a parameter which can be adjusted to increase 
the internal timeout timer by 1 second?
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You might have to recompile the code to change that.

But I would ask why it takes your SIP trunk 1.5 seconds to respond to an 
INVITE?  It should provide a 100 immediately upon receiving an INVITE.

Dale
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