Vo-Fone is a SIP-phone Android application. Honestly, I’m not sure what’s this for but my guess is this is like a VOiP phone. So I will just give you a screenshot I made from the Nexus phone I tested this.
At this part, when it asked me for server and port information, I no longer know what to make of it.
Anyhow, this looks like one powerful application. I will post another update once I figured how to use this.