When the call button is pressed, the NX1 initiates a video call via the Commtel NEXUS app. It can operate using Ethernet or 4G, depending on the connection method chosen when the unit is installed. The resident receives the call on their smartphone, sees the visitor, and can grant access remotely.
The NX1 connects via Ethernet and also has 4G capability built in as standard. If using the 4G function, a 4G data SIM with a stable connection is required.
- Built-in support for both Ethernet and 4G
- Simple setup using the Commtel CONFIG app
- Remote firmware updates and intelligent APN learning
- Powerful, programmable relay functions
- Public holiday-aware time profiles
- Local fallback for access control in case of network failure
You can find out more about the NX1’s features here!
Unlike Vision, which separates audio and video pathways, the NX1 offers unified audio-video over IP. Management is fully integrated through the Commtel NEXUS app, enhancing user experience and admin control.
In a network failure, the NX1 retains:
- PIN access
- Time profiles and trade entry
- Local relay control
Only calls and video are impacted. Once connectivity is restored, data re-syncs to the cloud automatically.
No battery backup is included, but installers can fit an external UPS if site resilience is required.
Yes, this is recommended. If the Ethernet connection fails, the system can instantly switch to 4G data.
- 4G: Minimum -85 dBm for reliable performance.
- Upload speed: At least 1.5 Mbps (4G or Ethernet) to support video calling.
SIP is a technology that lets the NX1 intercom make and receive calls over the internet.
With a SIP subscription, you can:
- Use your phone to open gates/doors. When your phone number is added to the system’s white list, you can call the intercom, and it will recognise your number to activate the relay and open the gate or door.
- Receive phone calls from the intercom. Instead of video calls, the system can make regular phone calls to your mobile or landline phone when someone presses the intercom’s call button.
While SIP is built into the system as standard, you’ll need a separate SIP subscription to use these features. You can manage this subscription through the Commtel NEXUS app.
SIP subscriptions are £5+VAT/month or £60+VAT/year.
Yes. Either your phone (for the app) or a SIP line (for standard calls) must be internet-connected.
Installers can download the NX1 install guide here: NX1 Overview – Commtel Ltd. Please note you must be logged into your account to do this.
No, unlike some IP intercoms, the NX1 does not require any firewall port configuration when connected via Ethernet, making installation simpler and more secure.
No. If you’re familiar with Commtel’s 4G products, you’ll feel right at home with the NX1.
The NX1 features three relays:
- 1x 2A relay – Configurable as normally open (N/O) or normally closed (N/C) by default.
- 2x 200mA relays – Normally open (N/O) by default but fully programmable via the app.
Each relay is customisable, allowing you to latch, unlatch, toggle, or pulse based on your specific needs.
Installers will need permission from the admin (homeowner/site manager) to reprogram the device after 30 days from handover. The admin can grant access via the Commtel NEXUS app, or the installer can request it through the Commtel CONFIG app, ensuring end-user privacy and control.
Not currently. The NX1 is designed for single-point entry (e.g. private homes, offices, barriers). However, we are looking to add to the Nexus range, later this year, to support expanded functionality.
Not simultaneously, but it supports:
- Call diverting to backup contacts
- Multiple PIN users and dial-to-open (with SIP)
Extremely. The Commtel NEXUS app enables:
- Live video call answering
- PIN and access management
- Temporary and scheduled codes
- Installer access control
- Relay control settings
- User management
Via the Commtel NEXUS app:
- Receive video calls
- Grant access
- Configure PINs and relays
- Manage user permissions
- Ethernet only: No ongoing costs
- Using Commtel 4G SIM: £7.50 + VAT/month
- SIP features: £5 + VAT/month or £60 + VAT/year
All Commtel products come with a two-year return-to-manufacturer warranty. This covers internal parts and Commtel labour in the event of a manufacturing fault.
Yes, spare parts are available for all current Commtel intercoms, including the NX1. These are available for our Installers and Distributors to purchase when logged into our website, or by contacting our sales team directly on 01306 710 120 (option 2) or by emailing sales@commtel.io.
- Data hosted on secure Google and AWS cloud servers with 99.99% uptime.
- End-to-end encryption for app-based calls.
- Local data storage to maintain access control during outages.
Updates are managed remotely and installed automatically, ensuring your system is always up to date with the latest features and fixes.
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