carrier lock

• SIMPhone identity module
• phoneHandheld communication device
• networkInterconnected system
• restrictionLimit on action
• freedomAbsence of constraint

contract · switch · jailbreak · cellular · mobile · provider · AT&T · Verizon · trapped · bound · release · device · smartphone · plan · prepaid · GSM · CDMA · international

• mobile servicesdata plan, mobile plan, unlimited plan, prepaid plan, text messaging
• feature phonesfeature phone, flip phone, basic phone, clamshell phone, dumbphone