Questions & Answers for: gsm phone

...GSM 900-1800-1900 Mhz bands, with their subdivisions (like 850-950 domain, 1800-1850). A phone with a sim card uses a RF module tuned on a specific range of frequencies. The major ones are GSM, CDMA ...

...sim cdma & gsm sim card....& a gsm phone....but i cant use cdma sim in gsm phone....plz give me any solution you can cdma sim use only in rim programmed mobilephones,can not use all gsm ...

...sim cards and if it is gsm it will support only gsm sim card not cdma if its is progrmmable phone take to service center and check whether the phone have the capability to support both gsm and ...

...uses gsm or cdma network.i have relianc cdma postpaid sim may i use this sim in nokia e63 mobile.will it properly work. thnk you Are Nokia E63 dual sim phone ? if yes then what : gsm+gsm or cdma+gsm

phone has a different GSM frequency band, this is the frequency band of middle east: GSM-900, GSM-1800 and EGSM/EGSM-900 This is the frequency band of Unite states GSM-850 and GSM-1900 This is why you

samsung sch s239 cdma convert to gsm samsung sch s239 cdma convert to gsm CDMA phones cannot be converted to GSM phones. They simply do not have the hardware radios inside to talk to the GSM towers.

US Cellular is a CDMA network and uses CDMA phones, AT&T is a GSM network and uses GSM phones. The two systems CDMA versus GSM phones are not compatible. Need to buy a new GSM phone for AT &T

GSM phone being unlocked to do this. In USA only T- Mobile & AT & T run GSM networks. Outside of USA most networks are GSM. There are four GSM frequency bands which vary in use by country. The

...Phone. A GSM Sim card will not make a CDMA phone into a GSM phone. They are two completely different types of radio systems. There are some phones that are both CDMA and GSM. Check the manufacturer ...