Mobile network standard knowledge)

The mobile phone name is GSM: it indicates that only China Unicom or China Mobile 2G segments (130, 131, 132, 134, 135, 136, 137, 138, 139, 145, 147, 150, 151, 152, 155, 156, 157, 158, 159, 182, 185, 186, 187, 188)

 

The mobile phone name is CDMA, indicating that only China Telecom 2G segments (133, 153, 180, 181, 189) are supported)

 

The mobile phone name is WCDMA/GSM, indicating that China Unicom or China Mobile 2G segments are supported, and China Unicom 3G segment (130, 131, 132, 134, 135, 136, 137, 138, 139, 145, 147, 150, 151, 152, 155, 156, 157, 158, 159, 182, 185, 186, 187, 188 ), mobile 3G services are not supported, and telecom cards are not supported.

 

Mobile phone name has TD-SCDMA/GSM: to support China Unicom or China Mobile 2G segment, china Mobile 3G segment (130, 131, 132, 134, 135, 136, 137, 138, 139, 145, 147, 150, 151, 152, 155, 156, 157, 158 ,), 159, 182, 185, 186, 187, 188 ), china Unicom 3G business is not supported, and telecom card is not supported.

 

The mobile phone names include CDMA 133 and CDMA, indicating that China Telecom 2G segments are supported and China Telecom 3G segments (153, 180, 181, 189, and) are not supported.

 

The mobile phone name is "CDMA 2000"/"GSM" (dual-mode Dual-Wait "): indicating that one card supports China Telecom's 2G segment and China Telecom's 3G segment (133, 153, 180, 181, 189 ), the other card supports the speech and text message functions of China Mobile or China Unicom 2G segments. Original article: http://blog.csdn.net/aerchi/article/details/8587503