HC25 AT Command Set - Portech.com.tw

HC25 AT Command Set
8.2 AT+COPS
s
(num)
Access technology selected
0 GSM
2 (D) UTRAN
(num)
0 (&F) Long alphanumeric format of . Can be up to 16 characters long.
1 Short alphanumeric format of . Can be up to 8 characters long.
2 Numeric format of . This is the GSM Location Area Identification (LAI)
number, which consists of the 3-digit Mobile Country Code (MCC) plus the 2-
or 3-digit Mobile Network Code (MNC).
Notes
• It is not recommended to use the AT+COPS command before passing the CHV (card holder verification) / SIM
PIN1 verification. This is because after PIN1 verification the module will automatically try to register to the
network as though AT+COPS were 0, regardless of the settings done before with or without SIM, such as
AT+COPS=2 which remains unchanged. Also, the test command should only be used after PIN1 authentication.
• The module will automatically try to register to the network with the same used by the last AT+COPS
write command. If the is set to automatic the module will try to register to network operators with supported
s.
HC25_ATC_V01.200 Page 118 of 290 7/25/07
Confidential / Released