Users of GrandCentral Communications often rave on to me about what a great solution it is for tying all phones and voicemail boxes into one number. I mean your VoIP, cell(s), landline, pretty much every phone number you have. Free, too.
To get this up and running, Gizmo Project users would designate their Gizmo Project profile ID. The ID appears as a "747" area code number.
Then, when a call comes in, it will ring into your GrandCentral number. Works with PCs, Macs, Nokia Nseries mobile phones or Internet Tablets.
And did I say that when you use Gizmo over GrandCentral there's no roaming minutes to worry about?