9
3. If SIM card requires switch on password, please enter:
AT+CPIN=
Ā
password
ā
4. Read module information
AT+CGMI
˄
Manufacture name
˅
AT+CGMM
˄
Read Module model
˅
AT+CGMR
(Read module current SW version information)
AT+CGSN
(Module serial number)
B. Dial call or receive call (Modem doesn’t provide voice port even with relevant
command)
1. Dial call
ATDxxxxxxxxx
˗
˄
xxxxxxxxx is phone number
ˈ
example
˖
ATD1860
˗˅
2. Call waiting function
˖
AT+CCWA
3. Hold function
˖
AT+CHLD=
˛
4. Dial latest call number
˖
AT+CLCC=
˛
5. Enter information once connection established
˄
DTMF
˅˖
AT+VTS=
˄
0-9
ˈ
#
ˈ
*
ˈ
A-Z
˅
Dial Extension number
˄
example
˖
1234
˅˖
AT+VTS=1
AT+VTS=2
AT+VST=3
