I have a user who is trying to receive inbound calls from the PSTN but whenever you dial his external number you will get a immediate busy signal. If he is called internally there is no issue at all. I have checked the Call Manager and did not notice anything weird in it. I have also reloaded his phone from the defaults and allowed call manager to restore the software and configs. What should I do now? I am not a voice expert.
1. Make sure that your dialing pattern is correct.
2. Enable the debug commands on the gateway to ensure that the call is hitting the gateway. (Debug isdn q931)
How does the call get to the user's phone. Translation pattern? Digit stripping at the gateway? An auto attendant? What type of gateway? Callmanager version?