General features:

• Quad-Band GSM 850/900/1800/1900 MHz

• GPRS Multislot class 10

• Output power:

– class 4 (2 W) for EGSM900

– class 1 (1 W) for DCS1800

– class 1 (1 W) for PCS1900

• AT Hayes GSM 07.05 and GSM 07.07

• AT commands for RIL compatibility (RIL/NDIS)

• SIM application toolkit (SAT Release 99)

• Supply voltage range： 4 – 37 V

• Terminal Type: RS-232

• Modem Interface : RS-232

• Antenna Interface:SMA

• Dimension/Weight : ≦100g

• Ambient temperature: –20 ℃…+65 ℃

• Auto switch-off at +75 ℃

Specification for fax:

• Group 3, class 1

Specifications for data  GPRS :

• Multislot class 10

• Full PBCCH support

• Mobile station class B

• Coding scheme CS1– CS4

• 4 slot downlink (85.6kbps), 2 slot uplink

Specifications for SMS:

• Point-to-point MO and MT

• SMS cell broadcast

• Text and PDU mode

Specifications for voice:

• Half rate (HR)

• Full rate (FR)

• Enhanced full rate (EFR)

• Adaptive multi rate (AMR)

• Basic handsfree operation:

– Echo cancellation

– Noise reduction