I misunderstood the need for the brackets since ph was the default, not {ph}
I put {} in and it no longer rings but appears to be doing so by sending the ITSP some sort of signal that it's not there. That results in the ITSP ringing the failover line.
I guess I should explain what I'm trying to accomplish... I live in a rural area where internet and/or power outages are somewhat common. I have my primary VoIP lines ringing ring groups that consist of a local extension that I use and the extension on SP2. When the internet or power is down, the server won't be able to communicate with with the phones/ATAs and thus the failover for this one service will ring the home copper line. I maintain the copper line for emergencies.
My main number is google voice. Unfortunately GV doesn't have hunt groups. So this is the next best option... but only if I can figure out a way to silence the ring on this 1 SP.
Thanks.