◆ Product Features Tri-band GSM / GPRS Industrial Module Execution ETSI GSM Phase 2+ Standard Category 4 (2W @ 900MHz) Category 1 (1W @ 1800 / 1900MHz) External 3V / 5V SIM ◆ Power supply 3,6VDC 1A Communication Average 300mA ( 0% DTX, Pmax) Idle 3,5mA External dimensions: 58 × 32 × 6 mm Weight: 20g (including shielded) ◆ Short message service Point-to-point MT & MO Short message area broadcast Reply call information Additional services Call transfer Multi-call call limit Phonebook Fixed Number Call Call Waiting or Hold Call Line Authentication Charge Infrared SIM Data Transmission Echo Cancellation SIM Toolkit SIM Lock USSD ◆ Basic Features Calls or Emergency Calls Maximum Rate, Upgraded Highest Rate and Half Rate Dual Tone Multi Frequency Function (DTMF) A5 / 1 & A5 / 5 encryption algorithm ◆ data characteristics Q2406A (support class10), download 53.6.8kbits / s, upload 26.8kbits / s data lines asynchronous transmission and synchronization up to 14,400 bits / s automatic fax group3 (class 1 & 2) call 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 device design I / O interface 4 parallel interface parallel interface LCD bus I2C bus 10 output lines for 5 × 5 keyboard 2 microphone input and 2 headphone output buzzer output ◆ Power interface for data operation RS232C serial cable through AT command control baud rate from 300 to 115,200 bits / s Automatic rate from 2,400 to 19,200 bits / s