- 10-21-2007, 04:35 PM #2
- 10-21-2007, 06:31 PM #3
- 10-21-2007, 07:29 PM #4
The iPhone SIM is user accessible and does not void your warranty to remove it. You cannot, however, activate you 64k SIM in the iPhone. The iPhone SIM will work in other phones, other SIMs will NOT work in the iPhone.
I have an iPhone and a Treo 680 and do just this.
I use the iPhone for most day to day stuff but swap the SIM back into the Treo for all sorts of business stuff. Haven't tried DUN on the Treo or the iPhone.
- 10-21-2007, 07:43 PM #5
I need the Treo as a backup; and one that can perform overseas and DUN, and the like.
One more thing:
I just swapped my Cingular SIM into the iPhone from the Treo - connected to iTunes - and 10 minutes later I was making iPhone-calls.
- 10-21-2007, 11:10 PM #7
- 10-23-2007, 05:19 PM #9
- 10-24-2007, 01:11 AM #11
you need to activate the iPhone via itunes, probably best done at home. The sim, for full functuality, should be linked to an iPhone plan. Beyond that, the treo should work just fine.
- 11-07-2007, 12:25 PM #12
One thing to note is that even if you swap the iPhone SIM into a phone that supports MMS you still won't be able to send MMS messages. At least I haven't been able to from my Pantech C3b. I havent tried putting my SIM back in my Treo....iPhone in the Washington DC area.
- 11-08-2007, 05:39 PM #13
I should mention that you could use the iPhone on a non-AT&T sim (such as a Cingular SIM card), you just have to use a 3rd party activation tool. depending on which version of firmware you're using, that could be iNdependence.app for macs or iBrickr for PCs...
- 11-08-2007, 10:38 PM #14