ph is the default setting, and should remain even if changes are made elsewhere that change the call route.
The Obi will make outbound calls even if calling isn't completely set up on the gmail/google voice end.
Make sure:
1 - Chat is enabled in gmail
2 - Outbound Calling is enabled in gmail and the voice video plug in is installed
3 - You have made one successful outbound call from within your gmail account
4 - You have checked Google Chat as a forwarding phone in your google voice account
5 - Your gmail page is not open in a browser
6 - You are not running Talkatone, GrooveIp, or any other 3rd party app that uses your google voice account for calls.
Note: The Obion app does not sign in to your google account, so it will not affect your google chat status. It places calls directly through your Obi using the Obitalk Service.