I have an OBI110 with a land line connected, with SP1 set to Google Voice. I have no other custom configuration set up.
I can make outbound calls just fine (defaults to using Google Voice).
Incoming calls work as expected both on the land line and on Google Voice.
However, when I get a call on the land line while I'm on the phone, the land line rings but I don't get a call waiting beep on the phone connected to the OBI. I also cannot switch to the incoming call.
How do I set this up? I am sure this used to work and just stopped one day.