I recently got a smartphone with Android 4.0.3. I was happy to see that I could enter my SIP credentials into it, and with no additional configuration, could call out using my VOIPo account. Now I don't have to punch numbers on my POTS handset any more.

When I tried turning on the feature to answer incoming calls, the Android phone would ring along with my POTS handset, but if I answer on my Android, the call is immediately dropped. Has anyone played with VOIPo on Ice Cream Sandwich? Any suggestions?