Yes, you can use a Straight Talk SIM card in an AT&T iPhone, provided the phone is unlocked or compatible with Straight Talk's network. Straight Talk uses AT&T's network, so AT&T phones typically work well with their SIM cards. Just ensure that the iPhone is not locked to a specific carrier and that it supports the necessary bands for Straight Talk's service.
Yes as long as the phone is att and has a sim card slot
yes u can I had my att go phone unlocked and tried to use my sim card from st. talk which I found out uses att service towers in my area however, it didn't work. It stated "sim crash"
no straight talk is a product of walmart and att phones are able to join straight talk rep told me that verizon phones would soon be able to come over ..although it is verizon generated att phones are only ones to sim over,,for now
any AT&T phone that can take that sort of sim card.
straight talk and att
it depends where yo buy it like att or virizon but if you want it for a diffrent carrier than the original you will have to visit unlockatt.com
well im not really sure it unjailbroke it BUT it still works on my ATT sim but im not sure if its supposed to work on the iphone or not since its not a normal ATT sim card with a normal rate its not an iphone plan but it still works on it i dunno bout bootloader
no
ATT recently (Sept, 2014) announced that it will introduce WiFi calling for iPhone in 2015.
You will most likely have to get a used iPhone from eBay or somewhere, and then get it jailbroken (unlocked) so that you can use any SIM card.
No because first of there is no slot for it and apple probably wouldn't allow it anyway
Sure. As long as your iPhone model has the SIM Card slot. Just make sure your LG uses Micro SIM Cards, or else you just have to cut your SIM Card to fit.