said by hockeynomad:
Is there some way to test the incoming calls are working rather than relying on someone who finally gets thru, informing you again about your "crap VOIP" line?
I'm not sure of the context of your question, but it is possible to set up a callback for messages with a given callerid. So if you called with your cellphone, you would hear a busy signal and not be charged. 10 seconds later your cell phone would ring, proving that your call had gotten through. Since you would not pick up on the call, you would not be charged.