GSM A6 module:
Working temperature -30℃to+80℃;
Working voltage 3.3V-4.2V;
Starting voltage>3.4V;
Standby average current is below 3ma;
Support GSM/GPRS, four frequency bands, including 850,900,1800,1900MHZ;
Sensitivity <-105;
Support voice call;
Support SMS
Support GPRS data service, maximum data rate, download 85.6Kbps, upload 42.8Kbps;
Support standard GSM07.07,07.05 AT commands and Ai Thinker extended commands;
Support 2 serial ports, one download serial port, and one AT command port;
Commands support standard AT and TCP/IP command interfaces;
Support digital audio and analog audio, support HR, FR, EFR, AMR speech coding;
Support ROHS, FCC, CE, CTA certification;
SMT 42PIN package