Bonjour,
qui peut me dire la difference entre :
GSM :
Designed with SIM900 for global market, SIM900 is a quad-band GSM engine that works on frequencies GSM 850MHz, EGSM 900MHz, DCS 1800MHz and PCS 1900MHz.
WCDMA :
Designed with SIM5320 series module for global market, SIM5320 is Dual-Band WCDMA and Quad- band GSM engine that works on frequencies UMTS 850MHz, UMTS 900MHz, UMTS 1900MHz, UMTS 2100MHz, GSM 850MHz, EGSM 900MHz, DCS 1800MHz and PCS 1900MHz.
Je dois acheter une de ces modules pour un PBX..
Merci d'avance