wireless gsm modem

Wavecom Q2403 RS232, wireless modem, GSM modem

Features
Dual-band GSM / GPRS module
Executive ETSI GSM Phase 2 + standard
Class 4 (2W @ 900MHz)
Class 1 (1W @ 1800/1900MHz)
External 3V/5V SIM

Power Supply
3, 6 VDC 1A
Communication mean 300mA (0% DTX, Pmax)
3, 5 mA when idle
External dimensions: 58×32×6mm
Weight: 20g (including shielding)

Short Message Service
Point to point MT & MO
SMS Cell Broadcast
Reply call information
Additional Services
Call Transfer
Conference call
Call restrictions
Phone Book
Fixed number to call
Call waiting or hold
Call Line Certification
Billing
Infrared data transfer SIM
Echo cancellation

SIM lock
USSD

basic features
Call or emergency call
The highest rate, the highest rate and half rate upgrade
Dual tone multi-frequency function (DTMF)
A5 / 1 & A5 / 5 Encryption algorithm

Data Characteristics
Q2403A (supports class2), downloads 26.8kbits / s, upload
13.4kbits / s
The data link asynchronous transmission and synchronization of up to 14, 400 bits / s
Automatic Fax group3 (class 1 & 2)
Phone and fax conversion
IrDA 1.2A protocol
GPRS WAP

Interface
Single antenna interface (for 900/1800)
SIM 3V/5V and SIM detection

Real-time clock
For handheld devices
I / O interface
4 Parallel Interface
Parallel LCD interface
I2C bus
10 output lines for 5 × 5 keypad
2 microphone inputs and 2 headphone output
Buzzer output

Power Interface
For the data manipulation
RS232C serial cable
Control via AT commands
Baud rate from 300 to 115, 200 bits / s
Automatic speed from 2, 400 to 19, 200 bits / s