Virgin mobile phone will not connect

[rarmitage]

Virgin Mobile Phone rings once and then goes to fast busy when caller id is enabled. Works fine when you take called id off. Other Mobile phones work fine. The call is going into an FXO port on a Cisco 2911 Version 15.2(4)M4. We are running call  Cisco Manager 9.1.. A debug of the call is attached. Below is the FXO port config on the router. This is a problem on several different gatways.

Thanks

voice-port 0/1/3
 trunk-group FXO
 timing hookflash-out 50
 timing guard-out 1000
 connection plar 5700
 caller-id enable

[acampbell]

Hi,

Can you try adding

!
voice-port 0/1/3
shut
caller-id alerting dsp-pre-alloc
no shut
!

to your config and retest

Regards
Alex

[rarmitage]

I tried that config and the call goes in but I only get "From O" as my caller ID on all calls.