General features
  Tri-Band GSM/GPRS 900/1800/1900MHz or
Quad-Band GSM/GPRS 850/900/1800/1900MHz
  GPRS multi-slot class 10/8
  GPRS mobile station class B
  Compliant to GSM phase 2/2+
     Class 4 (2W @ 850/900MHz)
     Class 1 (1W @ 1800/1900MHz)
  Dimension: 50mm x 33mm x 6.2mm
  Weight: 13.8 g
  Control via AT commands (GSM 07.07, 07.05 and SIMCom enhanced AT Commands)
  SIM application toolkit
  Supply voltage range 3.4V...4.5V
  Low power consumption
  Normal operation temperature: -30°C to +80°C
  Restricted operation temperature: -40°C to -30°C and +80°C to +85°C
  Storage temperature: -45°C to +90°C

Specifications for fax
  Group 3, class 1

Specifications for data:
  PBCCH support
  GPRS class 10: max. 85.6 Kbps (downlink)
  PPP-stack
  Coding schemes CS 1, 2, 3, 4
  CSD up to 14.4 kbps
  USSD
  Non transparent mode

Specifications for SMS via GSM
  Point-to-point MO and MT
  SMS cell broadcast
  Text and PDU mode

Specifications for voice
  Tricodec
Half rate (HR)
Full rate (FR)
Enhanced Full rate (EFR)
  Hands-free operation (Echo suppression)

Interfaces
  Interface to external SIM 3V/1.8V
  Two analog audio interfaces
  60-pins DIP BTB connector
  RTC backup
  Serial interface and debug interface
  LCD interface
  Keypad interface
  Antenna connector and antenna pad