hoi ik heb een BlackBerry in USA gekocht met CDMA technology,
Kan ik de BlackBerry gebruiken in Nederland ???

Gr willem911

Ok, quick guide to help you learn the differences between all the confusion with GSM and CDMA (and yes, even TDMA) phones.




Cingular uses a technology called GSM (Global System for Mobile Communications). GSM phones use a SIM Card(Subscriber Identity Module Card). A SIM Card stores information such as the user’s phone number, phone book as well as other information related to the subscriber and the carrier of the mobile phone. Cingular and T-Mobile are the most common providers in the US


Simcard^^


Sprint uses a technology called CDMA (Code Division Multiple Access). This is a purely digital network. Transmission from the phone goes to a radio/router type device, digitalized into a series of coded numbers. Sprint and Verizon are the most common CDMA carriers in the US.


CDMA explination ^^


Basically, to tell the difference between the two, look around the phone for a SIM Card. If there is no SIM Card slot, it is a CDMA. If it's a Nextel or Boost phone, it's called TDMA*. No, it's not compatible any GSM or CDMA carrier.


*TDMA (Time Division Multiple Access) - A digital wireless transmission that allows a large number of users to access one radio frequency without acctually interupting service. It uses a "Time Slot" technology, meaning, it's like a call center ("A representative will take your call in the order in which it was recieved").


Example^^