This started happening 4 or 5 days ago and from the messages posted in thjs forum it looks like it's happening to other people, too.
I use OBi110 with GV, and GV is setup to forward calls to both OBi and my cell phone. Everything used to work perfectly for the last several months, but recently a problem has developed: when someone calls my GV number, and I pick up the phone attached to OBi, the connection is not established right away, the caller still hears the ringing going on, for 10 or 20 seconds. I keep saying "hello", not hearing anything back. Then finally the connection gets established and I can talk to the caller, as usual. This does not happen if I pickup my cell phone (remember, GV is ringing it, too), with the cell phone the connection is established right away, as it always did before. This is clearly a problem with OBi and it's going on for 4 or 5 days now.
I hope the OBi folks are looking into this and the fix is in the works?