Quectel BC66

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Vendor's AT commands manual

https://www.quectel.com/download/quectel_bc66bc66-na_at_commands_manual_v2-2/

General AT Commands

Purpose	Command String
Configure/start a manual network selection	AT+COPS =[,[,[,]]] For example: AT+COPS=1,2,”26201”
Check the received signal quality	AT+QENG=0
Check the supported/configured bands of the UE	AT+QBAND?
Check the network registration status	AT+CEREG?
Configure the APN for IP-based connection	AT+CGDCONT=1,"IP","<APN_name>"
Configure/activate the PSM mode	AT+CPSMS=[[,<Requested_Periodic-RAU>[,<Requested_GPRS-READYtimer>[,<Requested_Periodic-TAU>[,<Requested_Active-Time>]]]]] For example: AT+CPSMS=1,,,01000011,00001111
Check the firmware version	AT+CGMR
Check the hardware version	AT^HVER
Modify the supported bands of the UE	AT+QBAND=[,[,[,…]]] For example: AT+QBAND=2,8,20
Switch ON / OFF the transceiver	AT+CFUN=1 / AT+CFUN=0

AT Commands for Communication Protocols

Purpose	Command String
Configure/activate Rel. 13 Early Release Assistance Indicator	AT+QNBIOTRAI= Note: This command is only valid for the subsequent uplink traffic, so this command has to be repeated every time before an uplink data is sent, if Early Release Indicator needs to be used.
Configure/activate the eDRX mode	AT+CEDRXS=,[,[,<Requested_eDRX_value>]] For example: AT+CEDRXS=1
Modify eDRX parameters	ATMEDRXCFG=[,[,[,<Requested_eDRX_value>[,<Requested_Paging_time_window_value>]]]] For example: ATMEDRXCFG=1,5,"0101","0111"
Create a TCP/UDP socket and send data to remote via socket	AT+QIOPEN=,,<service_type>,<IP_address>/<domain_name>,<remote_port>[,<local_port>[,<access_mode>][,<protocol_type>]] For example: AT+QIOPEN=1,0,"UDP","10.23.22.85",5683,0,1
Send data to remote via socket	AT+QISEND =,, For example: AT+QISEND=0,12,"012345678901"