Based on Siemens Wireless MC55i Modules.
-Quad Band EGPRS 850/900/1800/1900 Mhz
- AT command -Text and PDU
-4800SMS/h
-       Build in 8 GPRS modem in one box

-       Sigle power supply for 16 modems

-       Power button to control on and off

-       USB interface

-        Dual Band:  900/1800Mhz

Tri Band: 850/1800/1900MHz, or 900/1800/1900Mhz

Quad Band EGPRS 850/900/1800/1900 Mhz

-       Send MMS

-       GPRS class 10:max 85.6kbps(downlink)

-       Auto answer function for voice and data collection with the remote device.

-       AT command to control and program

-       Designed for WAP, MMS, SMS, CSD data, fax, and voice applications

-       Support XP/NT/2000/2003/vista operation systems

-       Design for high traffic communicaton

GPRS Function:

-          GPRS multi-slot class 10

-          21.4kbps uplink / 85.6 kbps downlink

-          42.8 kbps uplink / 68.2 kbps downlink

-          GPRS mobile station class B

-          Full PBCCH support

SMS Function:

-          Support AT command

-          Text and PDU

-          Point-to-point (MT/MO)

-          SMS broadcast

Voice Function:

-          Voice Call through mobile network

-          Auto answer function

-          Full duplex and half duplex rate

-          Enhanced full rate (EFR)

-          Double sound multi- frequencies function (DTMF)

-          Basic handsfree operation

-          Echo cancellation

-          Noise reduction

Data

-          CSD up to 18.8 kbps

-          Auto answer function

-          USSD

-          Non transparent mode

-          V.82bis compression

-          V.110

Accessories

-  USB cable

-  GPRS Modem Pool main unit

-  Power Cable

-  SMA Antenna x8

-  Manual CD