[isdnmatt]

Global works like this.

When you first turn on the phone, it'll detect the SIM card and put itself in Global mode. It'll also ask you for your SIM PIN on bootup.

Then it'll go on trying to connect to the Verizon network. If it doesn't find a CDMA signal, it'll timeout (approx. 1-2 min.) and ask if you would like to switch networks (GSM). You can select Yes/No and has a check box for "Never ask me again"

It'll time out regardless of how long the phone has been on if it loses CDMA signal. For example, this weekend I was in rural parts of Vermont that have spotty Verizon coverage. If the phone last signal for a long enough period of time, it would ask to switch to GSM.

So no, the phone doesn't handle both radios at the same time. If your on CDMA, GSM goes to voicemail and vice versa.