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

[Chris Stenton]

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?


Chris