What Is GSM PRI Gateway


GSM stands for Global System for Mobile communication. GSM PRI Gateway is a standard developed by European Telecommunication Standards Institute (ETSI) to describe protocols for second generation (2G) digital cellular networks. It was a replacement for the first generation (1G) cellular networks. The idea of developing GSM originated from a cell-based mobile radio system at the Bell Laboratories in the early 1970s.
GSM is an open, digital cellular radio network operating in over 200 countries worldwide. It uses narrowband time division multiple access (TDMA) technology. It covers almost complete Western Europe and growing in America and Asia. It is not only used for voice calls, it can also be used for data computing and sending text messages. A user can connect his GSM-enabled phone with his laptop to send or receive e-mails, faxes, browse internet, check security etc
GSM was developed using digital technology. It has an ability to carry 64 kbps to 120 Mbps of data rates.


GSM Fixed Wireless Terminal AF01

Features

  • Providing 900 and 1800 GSM connectivity
  • Simple to install/easy to maintain
  • Allow PIN code entering and reciprocal phone-card lock
  • WebTel Electrosoft.
  • Provide optimized circuit directly connecting the exchange device for extensions
  • LCD with back screen
  • Polarity reversal signal for metering
  • 3.5dBi gain antenna
  • Compatible to PABX
  • Suitable for call termination of ISP.
  • Incoming call reminder, time display

Specifications

  • Air interface standard: GSM 900/1800 MHz Phase 2+
  • Frequency ranges
    • GSM900:
      • Transmit: 890~915MHz
      • Receive: 1805~1880MHz
    • GSM1800:
      • Transmit: 1710~1785MHz
      • Receive: 1805~1880MHz
  • Channel space: 200KHz
  • Sensitivity: -104dB
  • Peak power consumption: 2W
  • Operating environment requirements:
    • Temperature: 0°C - +40°C
    • Relative humidity: 45% - 90%
  • Connectors: SMA antenna connector (TNC optional)
  • Atmospheric pressure: 86~106Pka
  • Power consumption: static≤25 mA, emission≤500 mA
  • Antenna: Gain: 3.5dB (all directional) 12 dB(Certain/selection)
  • Power supply:
    • AC220V±10% 47-54Hz AC110V/60Hz(optional)
    • DC12V (optional)

GSM Fixed Wireless Terminal AF02

Features

  • Providing 900 and 1800 GSM connectivity
  • Simple to install/easy to maintain
  • Allow PIN code entering and reciprocal phone-card lock
  • WebTel Electrosoft.
  • Provide optimized circuit directly connecting the exchange device for extensions
  • LCD with back screen
  • Polarity reversal signal for metering
  • 3.5dBi gain antenna
  • Compatible to PABX
  • Suitable for call termination of ISP.
  • Incoming call reminder, time display