GSM module AC21

Allows data transmission using CSD and GPRS technologies (class 10), supports work with the TCP/IP protocol stack, and also provides SMS messaging and faxing.

• Quad-band GSM: 850/900/1800/1900 MHz
• Multichannel GPRS, class 10
• Compliant with GSM phase 2/2+

Output power:

• Class 4 (2 W) for EGSM850/900
• Class 1 (1 W) for GSM1800/1900
• Control via AT commands (Hayes 3GPP TS 27.007, TS 27.005)
• SIM Application Toolkit support
• Access to the TCP/IP stack via AT commands
• Protocol Support: TCP Server/Client, UDP, HTTP, FTP, SMTP, POP3