GSM and CDMA
 

Lets say I have a quad band phone with both CDMA and GSM(Sags, Ozone, Tour, etc.). If I have it unlocked with a AT&T sim card and normal verizon service. Can I detect both services at the same time? Or do I have to pick which service to use. I dont currently own a gsm/cdma so I don't know how it works.

Re: GSM and CDMA
 

Not sure, but it might detect both for 911 purposes

Re: GSM and CDMA
 

my guess: if u had a SIM in it, then it will run GSM... and since CDMA is SIMless, i would think if you dont have a SIM in then it will run CDMA

Re: GSM and CDMA
 

Not sure about all of these devices but witht he VZ branded ones, they come with a VZ SIM card in them. If that card is present they will look for VZ's CDMA network. If that card is replaced by a regular GSM SIM card they will look for a GSM network. However, I think they are locked to Vodaphone by default from the factory, not sure if VZ would unlock one for you.
Frank