2) You need to have a 'test call' option.
It seems that it already has that option
[you just have to dial "801" and it doesn't require having an account].
Missed that with it not being on the 1st page / main page. My bad.
Did a test and it did work, going to try it at a location behind a sonicwall and see if it functions. Some services do work others do not. We have never been able to figure out why and neither has sonicwall. Never cared that much since what they need to use works, but it's been my test to see how other services handle oddball configurations.
-Dave