[Asterisk-Users] sipura 3000 - "Call Leg/Transaction Does Not Exist" - only happens sometimes

[Rich Adamson]

> Here is my problem 
> 
> I have an incoming call on the FXO port of the Sipura 3000 this goes to
> my asterisk box (running CVS - head) and then by default goes back to
> the sipura 3000 on the fxs tel port.
> 
> 
> Every 5 or so calls when the call is picked up on the fxs port telephone
> I just get beeping  and on the asterisk console it comes up with
> 
> Got SIP response 481 "Call Leg/Transaction Does Not Exist" back from
> xx.xx.xx.xx
> 
> Anyone else had this problem?

Just a guess... you might try adding canreinvite=no to the sip.conf
definitions.