3300mxe, AA, IP Console question

[unifydan]

I have the following setup, mitel 3300 mxe using an Auto Attendant, press option 1 which rings an IP 5550 Console.
The above setup all works fine, however after a maximum of around 2 minutes the timers kick in and the unanswered call will go back to the auto attendant.

Is there a way of just letting the calls just ring and ring ?

 

[M1tel]

No answer recall in the vmail port class of service and trunk class