User's Manual
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3. If SIM card requires switch on password, please enter: AT+CPIN=“password”
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,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,#,*,A-Z)
Dial Extension number(example:1234):AT+VTS=1
AT+VTS=2
AT+VST=3
AT+VST=4
6. Receive call: ATA
7. Hang off call: ATH
8. Incoming call ID: AT+CLIP=1
9、SMS function:
⑴ Setting up SMS Center number:AT+CSCA=“+8613800XXXXXX”,145
SMS Center number:+8613800XXXXXX
⑵ TEXT parameter:AT+CSMP=17,168,0,0 English format
AT+CSMP=17
,168,0,0 Chinese format
⑶ Send SMS:AT+CMGS
⑷ Read single SMS:AT+CMGR=1
⑸ List multiple SMS:AT+CMGF=1
AT+CMGF=4