AT Commands (AT+COPS)

AT+COPS=? - 查詢有效網路

RX(status, operator name, operator short-name, operator id, network type)

• state->0: unknow, 1: available, 2: current, 3: forbidden
• network type->0:GSM/GPRS, 2:WCDMA

Ex:

TX [AT+COPS=?<cr>]

RX [<cr><lf>+COPS: 
(2,"TW Mobile","TWM","46697",2),
(1,"TW Mobile","TWM","46697",0),
(3,"Chunghwa Telecom","Chunghwa","46692",0),
(3,"VIBO","VIBO","46689",2),
(3,"Far EasTone","FET","46601",0),
(3,"Far EasTone","FET","46601",2),
(3,"Chunghwa Telecom","Chunghwa","46692",2)
<cr><lf><cr><lf>OK<cr><lf>]