GSM or CDMA
Author: Fuzziimage // Category:
When you buy and sign up for a new wireless carrier plan you will usually get a mobile phone at reduced rate or free with their contract. The cell phones that is available with its carrier contracts are what is known as a "LOCKED" mobile phone. All wireless carriers such as Verizon Cell Phones, T-Mobile, AT&T, US Cellular, Ntelos, 
Cricket, Alltel, Sprint and others lock their cell phones so that you can't use it on another network. CDMA cell phones such as Verizon can be unlocked but only to be used on another CDMA network, however GSM are the more popular to be unlocked as they can be used with any GSM SIM card even overseas. When we refer to a phone as "LOCKED" this simply means that they would only work with the specific Carrier that it is locked to, even when the mobile phone is de-activated you can only re-activate it on that specific Carriers network. The person who purchases this type of locked mobile phone will be eligible to use just that particular device on the specific carrier network it was subscribed to and if the person needs to change the carrier service then they would have to change the mobile phone too.
This gives the n
eed to purchase an unlocked mobile device that would work with any carrier (GSM to GSM Carriers). When you have purchased a GSM unlocked cell phone, you only have to change the GSM SIM card in order to change the carrier service. Then the mobile phone would instantly access the new network service. These unlocked cell phones give you the freedom of changing your network service whenever you want. CDMA Cell phones live Verizon Mobile Phones can also be unlocked but are more commonly left locked as those customers choosing a CDMA provider usually do so because they only want that provider, for instance most Verizon Cell Phones customers do not switch since they specifically chose Verizon because of the fact Verizon uses a CDMA network and perhaps the CDMA network works best in that particular customers area.
Cricket, Alltel, Sprint and others lock their cell phones so that you can't use it on another network. CDMA cell phones such as Verizon can be unlocked but only to be used on another CDMA network, however GSM are the more popular to be unlocked as they can be used with any GSM SIM card even overseas. When we refer to a phone as "LOCKED" this simply means that they would only work with the specific Carrier that it is locked to, even when the mobile phone is de-activated you can only re-activate it on that specific Carriers network. The person who purchases this type of locked mobile phone will be eligible to use just that particular device on the specific carrier network it was subscribed to and if the person needs to change the carrier service then they would have to change the mobile phone too.This gives the n
eed to purchase an unlocked mobile device that would work with any carrier (GSM to GSM Carriers). When you have purchased a GSM unlocked cell phone, you only have to change the GSM SIM card in order to change the carrier service. Then the mobile phone would instantly access the new network service. These unlocked cell phones give you the freedom of changing your network service whenever you want. CDMA Cell phones live Verizon Mobile Phones can also be unlocked but are more commonly left locked as those customers choosing a CDMA provider usually do so because they only want that provider, for instance most Verizon Cell Phones customers do not switch since they specifically chose Verizon because of the fact Verizon uses a CDMA network and perhaps the CDMA network works best in that particular customers area.