M20 EVB

General features:
Quad-Band: 850/ 900/ 1800/ 1900 MHz
GPRS multi-slot: Class 12/10/8
GPRS mobile station: Class B
Compliant to GSM: Class 4 (2W @850/ 900 MHz)
phase 2/2+: Class 1 (1W @1800/1900MHz)
Supply voltage range: 3.4~4.5 V 4.0V nominal
Supply voltage range: 3.4~4.5 V 4.0V nominal
Low power consumption: 1.1mA @ DRX=5
: 0.7mA @ DRX=9
Operation temperature: 45 ° C to +85 ° C

Control via AT commands (GSM 07.07, 07.05
and other enhanced AT Commands)
SIM application toolkit

Specifications for fax:
Group 3, class 1
Specifications for data:
GPRS class 12 max. 85.6 kbps (uplink & downlink)
PBCCH support
Coding schemes CS 1, 2, 3, 4
CSD: Up to 14.4 kbps
USSD
Non transparent mode
Stack: PPP stack, TCP/IP stack

Specifications for SMS via GSM /GPRS:
Point-to-point MO and MT
SMS cell broadcast
Specifications for voice:
Speech codec modes Half rate (HR), Full rate (FR)

Enhanced Full rate (EFR): AMR half rate; AMR full rate
Echo arithmetic: Echo cancellation; Echo suppression; Noise Reduction
Hands-free operation

Interfaces:
External SIM: 3V/ 1.8V
Analog audio interfaces: Two channels
RTC backup
Keypad interface
LCD interface
Serial port and debug port
Antenna pad

Charge interface: (Optional)
GPIOs
Rivers:
MUX Driver
Compatibility:
AT cellular command interface