Model

M23 A

Product Feature

Tri-Band GSM/GPRS module : EGSM900/DCS1800/PCS1900
Compliant with GSM Phase 2+ standard
Control via AT commands
Supply Voltage range from 3.3v to 4.2v

Voice

HR/FR/EFR
Noise deduction, echo cancellation
Telephony
Emergency Call
Dual Tone Multi Frequency Function (DTMF)

Short Message Service (SMS)

Delivery Report
Point to point MT/MO
Cell Broadcast

GSM Circuit Switched Data

Asynchronous
Transparent/ non-transparent
Up to 14.4kbps

GPRS Packet Data

GPRS Class B
GPRS Multi-slot Class 4
4 slot downlink (86.6kbps), 2 slot uplink (42.8kbps) max 5 slot
Coding Schemes : CS1 to CS4

Supplementary Services

Number identification
Call forwarding (Call Divert)
Call completion
Multi Party
Charging
Call barring

Interface

Antenna Interfaces :
RF connector support coaxial cable
RF pads support RF cable soldering
44-pin B2B connector including :
UART/RS232
SIM (1.8V/3V)
General Purpose I/Os
Analog audio input/output
Power supply connection
AT command set according to GSM 27.05, 27.07

General Information

Dimension : 55.5 x 40 x 5.95 mm
Weight : 15 g
Operating Temperature : - 20 ~ + 60 °C
Functional Temperature :- 20 ~ + 70 °C
Storage Temperature : - 40 ~ +85