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4G VoLTE Digital Communication Systems

Intercoms and voice communicators that call over the 4G-VoLTE mobile network, for doors, gates, car parks and remote sites.

4G GSM Audio Intercom – Anti-Vandal 1 Way (4G-VoLTE)
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The LiftPulse gateway: white wall-mount enclosure with antenna connection and battery backup inside

LiftPulse emergency lift line monitoring

LiftPulse moves the emergency lift phone from its BT line to a 4G-VoLTE communicator with EvolveSIM, and adds a cloud dashboard for every lift. The BT PSTN network switches off on 31 January 2027.

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ControlFreq EvolveSIM cards

EvolveSIM multi-network SIM

One SIM that works on all four UK mobile networks. If the signal drops on one, it switches to another automatically, so each unit stays connected. All usage is included.

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WebAlarm map on a desktop monitor

See every system on a single map view with details.

WebAlarm logs fire, panic, intruder, leak and equipment-failure alarms as they happen, with power, battery and signal alerts. Alerts go to Slack by default, and also to SMS, voice call, email and DC09 to an alarm receiving centre.

WebAlarm Cloud Monitoring (opens in a new tab)
Not sure which unit fits? Our engineers configure these every day. Talk to an engineer · 020 3478 0784