Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

ppc_michael

Guest
Original poster
Forgive me if this isn't the right forum, but it's tangentially related to the iPhone.

I have Cingular/ATT, and the signal in my house is horrid. I usually can't place a call, and when I do, it gets dropped. My dad has Verizon and gets great service, but also a different phone model.

I want to put my SIM card in his phone to see if I get better signal (to see if it's the service or the phone that's the problem) to see if I could even use my iPhone if I got one.

Will putting my SIM card in a different make/model phone sold for use on a different network mess anything up? Or will things go smoothly? I just don't want to ruin his phone (or mine). Using my SIM card in his phone will make it use the ATT network, correct?
 
correct. verizon uses a CDMA service while AT&T is GSM. if you opened up the verizon phone you would find there is no sim slot.
 
Although, if both phones were GSM, your theory would be correct ...assuming neither of the phones had a SIM lock.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.