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  • Product ID
  • Package size
    170x120x35 mm
  • Package weight
    0.25 kg

Communicator for alarm control panels, wich can be used as a universal GSM adapter for alarm sytems, as a GSM line simulator, or for substituting a landline.

Main features:

  • GSM communication
  • 1 telephone line output
  • Forwarding of incoming SMS messages
  • Push-button for GSM signal strength indication
  • Supported operating system: Windows 10

Application area:

  • Universal GSM adapter for security systems
  • Landline substituting device
  • GSM phone line simulator


  • Connecting alarm control panels to the GSM network, that are capable of sending signals in DTMF format to the central monitoring station via landline (Contact ID, Ademco Express).
  • The adapter enables installing an alarm system where no landline is available, but reporting to a monitoring station is required.
  • When a landline phone is connected, outgoing and incoming calls are made over the GSM network.
  • Checking GSM signal strength with LED display.
  • Forwarding of incoming SMS messages to a configurable mobile phone number

Technical specification

  • Transmission channel
  • Frequency band
    850/900/1800/1900 MHz
  • Operating temperature
    -20 ºC - +70 ºC
  • Supply voltage
    9-24V DC
  • Current consumption (maximum)
    400 mA @ 12 VDC
  • Current consumption (nominal)
    110 mA @ 12 VDC
  • Casing
    PCB + metal case
  • Terminal connector design
    Mounted on the panel
  • Dimensions
    100x70x19 mm
  • Weight
    80 g


  • DTMF-based reporting to monitoring station

Supported protocols

  • SIA DC-05 (DTMF) protocol


  • Programming method
    Using a hard-wired telephone or via SMS


  • User phone numbers for forwarding incoming SMS messages

Other functions

  • Voice dialer adaptation
  • Phone line emulation
  • Adaptation of alarm control panels to mobile network
  1. When the call is made from the device, the phone does not display the caller’s number. Why?

    You have to enable to send the caller ID of the inserted SIM card by the GSM provider. Put the SIM card into a mobile phone, and call the GSM provider customer service, in the menu, you will be able to enable that feature. (Even though the caller ID shows up when you make a call with a mobile phone, it will not show up when you use the device until you enable this feature through the GSM provider)

  2. The module sends a long line of continuous letter / sequence SMS message to the SMS forwarding featured phone number. What is the reason for this?

    This phenomenon happens when you do not receive a regular SMS (text) to the phone module, but some kind of a multimedia message (MMS photo) or some other encoded message (for example, encoded Cyrillic letters with accents or other capitalization). An industrial phone module is not able to handle this, that's why the mentioned letters/sequences are converted into Unicode form and are forwarded to your phone (depending on the size of the message 1 MMS can be received in 3 or 4 SMSs). Please note that in this case there is no problem with the device itself, but this phenomenon is caused by the above-described reason. If this occurs regularly, there is a good chance that it is an advertising / marketing message sent by the service provider, which can only be stopped by either asking the service-provider not to send such messages to this given phone number or by turning off the message forwarding function (in the settings: delete the SMS forwarding phone number), if this function is not absolutely necessary.

Message to the customer service



  • ecoLINE GSM II v5-01 EN Manual
    2022.03.04 501.21 KB Download
  • ecoLINE GSM II volume adjusting utility (Signed)
    2012.06.12 1.14 MB Download
  • TELLtest_HID_logger_v2
    2017.03.22 108.16 KB Download
  • ecoLINE GSM II EU-Compliance Statement
    2017.07.17 331.87 KB Download
    2021.09.01 43.34 KB Download
  • ecoLINE GSM II Leaflet EN
    2011.12.04 1.55 MB Download
  • ecoLINE GSM II firmware v5.01.0.8129
    2022.03.30 893.42 KB Download
  • Release notes (EN)
    2017.09.04 1.45 KB Download
  • Firmware upgrade instructions
    2021.11.12 859 bytes Download
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