LANDLINE-4G | GSM communicator for BT landline retrofit

  • BT landline alternative – Simple Plug & Play
  • No configuration required - Insert SIM & power on.
  • Live connectivity monitoring every 5 minutes
  • Event monitoring of calls, connectivity, incl. API 
  • Supports 4G-VoLTE (new mobile voice standard)  
  • BS EN81-28:2022  8hr BBU, 1hr talk time, test call & dial in & out 
  • *Optional Add-ons at checkout for BS EN81-28 considerations

List Price:

£368.00 (excl. VAT)

Product Detail

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LANDLINE-4G | GSM communicator for BT landline retrofit

The LANDLINE-4G is a retrofit GSM communicator is designed to provide a simulated landline to any 3rd party system requiring a PSTN connection. 

Ideal for replacing landline sockets requirement by many devices such at lift phones, ATM machines, vending machines, intruder alarms & telemetry systems. 


The connecting phone equipment will not detect the difference between a traditional fixed PSTN line and the simulated GSM alternative provided by LANDLINE-4G.

An ideal and very simple retrofit solution designed to resolve issues associated with the BT fixed line switch off in 2025.

LANDLINE-4G requires no configuration whatsoever. Simply insert the SIM card, plug the unit in and dial tone will be present after approximately 30 seconds.

It couldn’t be easier to replace a landline and at a fraction of the annual running cost. Upgrade any landline system in less than 1 hour!

For applications such as emergency lift phones, it is highly recommended to adhere to the requirements of BS EN81-28 for remote communications.

LANDLINE-4G meets and exceed BS EN81-28 standards if the optional extras at checkout are added.

1. multi-network monitored mission-critical roaming SIM card
2. battery back up (for 1 hour talk time)
3. WebAlarm live connectivity & lift event logging platform. 

For more info and a live demo, call us on 02034780786.

Optional Add-ons

External Antennas

GSM Antenna - Blade adhesive stick-on mount
GSM Antenna - Blade adhesive stick-on mount
GSM Antenna - Blade adhesive stick-on mount
GSM Antenna - Blade adhesive stick-on mount

GSM Antenna - Blade adhesive stick-on mount

£21.00
GSM Antenna - Anti-Vandal bolt-through mount
GSM Antenna - Anti-Vandal bolt-through mount
GSM Antenna - Anti-Vandal bolt-through mount
GSM Antenna - Anti-Vandal bolt-through mount

GSM Antenna - Anti-Vandal bolt-through mount

£25.00
MEGA-30 | External High Gain Magnetic 4G Antenna (3-5 dBi)
MEGA-30 | External High Gain Magnetic 4G Antenna (3-5 dBi)

MEGA-30 | External High Gain Magnetic 4G Antenna (3-5 dBi)

£38.00
ULTRA | Ultra high-gain YAGI external directional antenna
ULTRA | Ultra high-gain YAGI external directional antenna

ULTRA | Ultra high-gain YAGI external directional antenna

£112.00
5m extension cable for 'Ultra Directional'
5m extension cable for 'Ultra Directional'

5m extension cable for 'Ultra Directional'

£15.00
10m extension cable for 'Ultra Directional'
10m extension cable for 'Ultra Directional'

10m extension cable for 'Ultra Directional'

£25.00
20m extension cable for 'Ultra Directional'
20m extension cable for 'Ultra Directional'

20m extension cable for 'Ultra Directional'

£50.00
15m extension cable for 'Ultra Directional'
15m extension cable for 'Ultra Directional'

15m extension cable for 'Ultra Directional'

£37.50