I have the following config for my phone solution:
3 Basic rate ISDN lines
1 Mobile BRI Router for Mobile/ Cellphones.
I have run several tests calling various ISDN lines to try and hit the autoattendant. with no calls active on the router I am still getting intermittent engaged tones and calls just dropping off. i cannot figure out whats going on. my phone system config seems fine but still calls keep getting dropped.
Any ideas what might be happening?