I have Obi 100 w Google Voice as SP1, Callcentric as SP2. After May 15 I plan to forward GV calls to free Callcentric DID, spoof my GV number for outgoing calls on Callcentric. Will this work? Should I switch to Callcentric as SP1? I already forward incoming GV calls to the Callcentric DID but there is no ring, only a record that there was an incoming call.
Yes, that is exactly how I, and other people here, use Callcentric with Google Voice.
Delete your Google Voice configuration on SP1, and replace it with your Callcentric configuration.
Log onto your Google Voice account on a computer's web browser, and go here: https://www.google.com/voice#phones
Delete the "Google Chat" entry (it will be useless in a couple of weeks), and ensure that you have added your Callcentric DID as a forwarding phone number, and you have a check mark to the left of it. That's basically all you need to do.
Thanks, just needed some reassurance.