Description

Working temperature: from -30 s to + 80 s;
2. Backup currents below 3 mA;
3. Supports GSM / GPRS quad band frequencies, including 850, 900, 1800, 1900 MHz;
4. Sensitivity <-105;
5. Support voice calls;
6. Support SMS text messaging;
7. supports GPRS data services, maximum data transfer rate, download 85.6 kbps, download 42.8 kbps;
8. Support GSM07.07 standard, 07.05 AT and Ai thinker command expansion;
9. Supports 2 serial, load Serial port, AT command;
10. L commands support the standard AT and TCP / IP interface;
11. Support digital audio and analog audio, support HR, FR, EFR, AMR speech coding;
12. Support 2 g 3g 4G mobile Unicom card