PSTN Landline Alternative Communicator (4G-VoLTE)

The 4G VoLTE Landline Replacement Communicator is an advanced GSM/GPRS communication system designed to replace or back up traditional telephone lines for alarm and voice communication systems.

Developed as a cost-effective and reliable BT landline alternative, it enables alarm systems and monitoring equipment to transmit events using Contact ID over 4G or GPRS connections. Ideal for sites impacted by the PSTN switch-off, the communicator ensures uninterrupted operation where fixed-line services are unavailable or unreliable.

It supports event transmission directly to Alarm Receiving Centres (ARCs) and can send CID-to-SMS notifications to users for real-time status updates. With over-the-air firmware upgrades, remote configuration, and compact DIN-rail mounting, it’s a simple yet powerful upgrade for any alarm or monitoring system that currently relies on PSTN lines.

• 4G VoLTE Connectivity: Provides secure and fast mobile communication for reliable alarm signalling

• BT Landline Alternative: Replaces or backs up PSTN lines for alarm systems, fire panels, or voice communication

• ARC Integration: Full Contact ID event reporting with GPRS-TCP/IP transmission to monitoring centres

• CID-to-SMS Alerts: Sends event notifications directly to end users in text format

• Firmware Over-the-Air (F-OTA): Enables remote software updates for minimal downtime

• User-Friendly Setup: Configure via SMS, USB, or WebAlarm™ with intuitive programming options

• Anti-Tamper Protection: Built-in tamper output for enhanced system security

• Network Compatibility: 4G VoLTE with 3G/2G fallback

• Power Supply: 13.8–15.0V DC

• Battery Backup (optional): 12V / 0.8Ah

• Power Consumption: 250mA (transmitting) / 40mA (idle)

• Inputs: 2 (alarm input + GSM priority input)

• Outputs: 2 relay outputs (PSTN failure + auxiliary control)

• Event Transmission: Contact ID via GPRS-TCP/IP or SMS

• Event Storage: Memory for up to 4 phone numbers

• Firmware Updates: F-OTA (Firmware Over-The-Air)

• Programming Options: USB, SMS, or WebAlarm™

• Antenna: SMA connector

• SIM Card: Compatible with IoT M2M SIM cards for multi-network reliability

• Dimensions: 118 × 175 × 36 mm (standard), 155 × 220 × 82 mm (IP56 enclosure)

• Weight: 500g

• Compliance: EN50131-1, EN50136-1-1, EN50136-2-1 certified

Upgrade connectivity and visibility with WebAlarm™, ControlFreq’s secure cloud-based platform for alarm and device management.

• Live Event Monitoring: Track alarm signals and device activity in real time

• Remote Configuration: Adjust settings and update firmware from any browser

• Custom Notifications: Receive instant SMS or email alerts for key events

• Multi-Site Management: Centralise control of multiple installations on one dashboard

• ARC Integration: Seamlessly route alarm data to approved Alarm Receiving Centres

• PSTN replacement for alarm signalling

• Backup communication for fire and intruder alarms

• Remote monitoring for critical systems and equipment

• Landline alternative for lift and access systems

• Voice communication backup for security and safety applications

• Retrofit upgrade for systems affected by PSTN switch-off

LANDLINE-4G Datasheet (PDF)

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