Introduction - If you have any usage issues, please Google them yourself
Serial AT commands easy language developed to help you test AT+CGMI to obtain vendor models AT+CGMM ATE1 echo get phone model the SIM IMSI number AT+CGMR of software version number ATE0 echo ATD+ phone number dialing ATH-hook the ATA answer the phone AT+CPAS get the current state of: 0 Stateless 4 dial 3 to answer the phone AT+CSCA? to Get SMS center number AT+COPS? the query network registration AT+CBC Query battery level 0: The module is powered by a battery, BCL for consumption: Module is powered by an external power supply: battery The state does not recognize 3: Identify the power error 0-100: remaining battery power (0-100 ) AT+CSQ check signal quality