GSM Audio Intercom – Anti-Vandal 1 way (4G-VoLTE)

The 4G VoLTE GSM Intercom | 1-Way combines secure door entry communication and access control in a single, compact unit. Designed for reliability and ease of use, it connects directly over the mobile network, allowing users to speak with visitors and unlock gates or doors remotely via mobile, SMS, or free Caller ID recognition.

The intercom features a built-in illuminated keypad that supports up to 1,000 permanent and temporary access codes. Each call button can dial up to five phone numbers in sequence, ensuring no visitor is missed. With its 4G VoLTE connectivity and 3G/2G fallback, the system delivers dependable performance even in challenging environments.

Ideal for residential properties, small businesses, and gated facilities, the unit is housed in a vandal-resistant stainless-steel enclosure and supports Wiegand input for additional devices such as external readers or RF receivers. Configuration can be performed remotely via SMS, web interface, or mobile app for flexible management.

• 4G VoLTE Connectivity: Fast and reliable GSM communication with network fallback options

• Integrated Access Control: Keypad supports up to 1,000 access codes for secure entry

• Multi-User Calling: Each button can call up to five predefined numbers sequentially

• Remote Management: Configure and manage remotely via WebAlarm™, app, or SMS

• Event Logging: Store up to 20,000 access events with full timestamps

• Wiegand Integration: Connect third-party access devices such as card readers or keypads

• Durable Build: Stainless-steel, vandal-resistant housing designed for outdoor use

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

• Power Supply: 12–24V DC or 12–20V AC

• Power Consumption: 250mA (transmitting) / 80mA (idle)

• Call Buttons: 1 (up to 5 phone numbers per button)

• Keypad: Backlit, supports up to 1,000 access codes

• Inputs: 2 alarm inputs

• Outputs: 2 relay outputs (for door/gate control)

• Wiegand Interface: Input & output supported (26/72-bit)

• Event Log: Up to 20,000 entries

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

• Material: Stainless-steel vandal-resistant housing

• Dimensions: 290 × 113 × 56 mm

• Antenna: External SMA patch antenna

• Mounting: Surface or flush mount (on request)

Enhance system control with WebAlarm™, ControlFreq’s cloud-based access and monitoring platform.

• Remote Configuration: Manage users, PIN codes, and access rules from any browser or mobile device

• Real-Time Monitoring: Track access events and receive instant notifications

• Multi-Site Management: Control multiple intercom systems from one dashboard

• Custom Alerts: Receive SMS or email alerts for triggered events or unauthorised access attempts

• Secure Cloud Access: Encrypted connection ensures reliable, secure communication

Secure residential and commercial door entry

Remote gate and barrier control

Multi-tenant building access

Office or industrial site entry management

Retrofit solution for PSTN intercom upgrades

Visitor management and remote access systems

CUSTOM1-4G Datasheet (PDF)

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