This Module is a quad-band GSM/GPRS module that works on frequencies GSM 850MHz, EGSM 900MHz, DCS 1800MHz and PCS 1900MHz. Simcom SIM800A features GPRS multi-slot class 12/ class 10 (optional) and supports the GPRS coding schemes CS-1, CS-2, CS-3 and CS-4.

GPRS

• GPRS data downlink transfer: max. 85.6 kbps
• GPRS data uplink transfer: max. 85.6 kbps
• Coding scheme: CS-1, CS-2, CS-3 and CS-4
• PAP protocol for PPP connect
• Integrate the TCP/IP protocol.
• Support Packet Broadcast Control Channel (PBCCH)

Audio features

• Half Rate (ETS 06.20)
• Full Rate (ETS 06.10)
• Enhanced Full Rate (ETS 06.50 / 06.60 / 06.80)
• Adaptive multi rate (AMR)
• Echo Cancellation
• Noise Suppression

Serial port and USB interface

• Full modem interface with status and control lines, unbalanced, asynchronous.
• 1200bps to 460800bps
• Can be used for AT commands for data stream
• Support RTS/CTS hardware handshake and software ON/OFF flow control
• Multiplex ability according to GSM 07.10 Multiplexer Protocol
• Autobauding supports baud rate from 1200 bps to 115200bps