GPRS Modem is a good tool which can conduct mobile data transmission by GSM/GPRS network. Which can be mainly used outdoors or used in the event that wire link to internet were unavailable. You can also access to network even on a galloping train. It only charges you when you transmit data.
Main functions:
Surfing on line
Data transmission
Sending and Receiving SMS
Sending and Receiving Email
Sending and Receiving Fax
General features:
�Quad-Band GSM900/1800/1900 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
Operation system:
Win9X / Me / CE / 2000/ 2003 / XP, VISTA
�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 3.2 �4.5 V
�Terminal Type: USB 2,0
�Interface : USB 2.0
�Dimension/Weight : <50g
�Ambient temperature: �0 °C�65 °C
�Auto switch-off at +75 °C
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 (86.6kbps), 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