How do I switch phones while on a Google Voice call?

Question

If I initiate a Google Voice call from one phone and want to switch midway through the call to another phone, how can I do it?

I heard there was some button combination I could press to make all my other phones ring while I'm on a call.

Answer 1

There is no way of switching phones for a call you initiate. Per this Google Voice Help article:

Keep in mind that it's not possible to switch phones during calls you make through your Google number

You can switch phones for a call your receive though

To switch phones in the middle of an incoming call, just press * while you're talking, and your other phones will ring

Answer 2

For incoming calls you can press * to switch the call to another one of your phones. However this capability is not currently available for outgoing calls.

I don't know if this is the reason, but a lot of people call into automated systems that require entering something on the keypad. So if Google Voice intercepted things like * for switching phones and 4 for call recording as they do on incoming calls, it would probably cause more trouble that it would solve. Perhaps in the future they might allow initiating the switch via a web interface or smartphone app.