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Fanvil Installation Instructions

Fanvil i10D Configuration


  1. Please work with your Internet Service Provider to obtain a Static IP and configure your Property’s Network to use Static IP. All Fanvil extensions must be connected to a network using Static IP. Please communicate this IP with Latch Support prior to proceeding to Step 2.
  2. Connect the Fanvil to Latch’s PBX Server.
  3. Unscrew the Fanvil top.
  4. Connect the Fanvil to power and ethernet.
  5. Rescrew the Fanvil top / Mount the device.
  6. Press and hold the Call button on the Fanvil for approx 5 seconds.
  7. Once a noise starts playing tap the Call button again.
  8. The Fanvil will say its IP address.
  9. While on the same network as that Fanvil, type the IP address into your laptop's browser 8. Login with username and password both as “admin."
  10. Now go to the Line section from the left menu and input the information generated from when you created the Extension in the FreePBX Console. The extension number is the username and the secret is the password. The Server Address is and Server Port is 5060. The expected transport protocol is UDP. Click Apply. 
  11. If all of the information was correctly entered then you should see the Line Status become Registered after refreshing. 
  12. Go to Basic Settings and make sure Auto-Answering is OFF.
  13. Go to the Function Key section in the left menu. Under Function Key Settings create a DSS Key that is of type DTMF, name it Unlock DTMF, set the value to 9, then click Apply. 
  14. Under Programmable Key Settings, set Key 2 to the DSS Key you just created (named Unlock DTMF) in the Desktop and Talking Column. Click Apply. 
  15. Ask Latch Support to assign this Fanvil's PBX Extension or SIP URI to the Unit. Alternatively, this can be done in Latch Manager if you have the right permissions. 
  16. Go into Manager Web and link the SIP URI to the desired unit. The SIP URI should be “sip:<EXTENSION>@” . This is often referred to as the Indoor Intercom Number in our system.

This can also be done in bulk via a CSV import.

Intercom shows ‘Could not connect to Latch’

When you see an error message that says “Could not connect to Latch” on the intercom interface, it means that the intercom is most likely having difficulty connecting to the internet. Check your Wi-Fi or Ethernet connection. Usually, the Latch Intercom will fall back to cellular, but if there is a poor cellular signal or if cellular has been disabled for your building, you will need to check your Wi-Fi or Ethernet and reconfigure them using Manager App.

Latch Intercom and Cellular

All Latch Intercoms ship with a built-in SIM card that enables a back-up cellular connection in case your Wi-Fi or Ethernet goes down. Cellular backup is free. In some rare cases, cellular may be turned off your building due to usage limitations. Contact Latch Support for more information on your cellular plan.

Pairing a Latch Intercom with a Door and configuring Internet

The Latch Intercom uses the Latch R to unlock doors and cannot unlock a door directly. To pair an Intercom with a door, you must use the Manager App and follow the below steps:

  1. Before installing the Latch Intercom, send an e-mail to to let us know which doors in the building need to be paired with the intercom to ensure you don’t get stuck during installation.
  2. Once the intercom has been mounted and powered on, you may scan the QR code that shows on the display using the Manager App.
  3. Scan the QR code located on the intercom or on the packaging and select the correct location. 
  4. After setting the location, you will have the option to pair the intercom with the doors that Latch Operations has designated as ‘Intercom Doors.’ 
  5. Once paired, you will be able to connect the intercom to the internet.

Configuring networking for the Latch Intercom

Once you have selected the location of the Intercom and paired it with a door, you can configure the intercom for Wi-Fi by following the steps in the Manager App. For Ethernet, simply plug in the Ethernet cable and the Latch Intercom will automatically connect to the internet.

Intercom power and networking

Power requirements

Latch recommends using a PoE++ switch that supports the 802.3bt standard which ensures that 50W are available at each port. Latch does not recommend directly using PoE switches with less than 50W per port with the intercom. If a PoE switch with less than 50W per port is being used, then PoE should be disabled for the port or the connection should be moved.

Detailed specifications around PoE / connecting the intercom by ethernet are as follows:

    • Ethernet switch that has no PoE ports / Using DC power (2-wire)
      • Amperage is 4A @ 12V or 2A @ 24V
      • Latch recommends using 24V instead of 12V whenever possible. If the installer is only able to use 12V, they must ensure the wire length and gauge is correct per the chart below

      • The power supply must be a Class 2 Isolated, UL Listed DC Power Supply
    • Ethernet switch with PoE ports
      • Ethernet switch must be a PoE++ switch that supports the 802.3bt IEEE standard. This will ensure that 50W is available at each port. 
      • If a PoE switch with less than 50W per port is being used, then PoE should be disabled for the port or the connection should be moved.
      • Intercom should NOT be connected to any PoE-enabled port other than a dedicated PoE injector. If connecting to a PoE port not an injector, see below bullets for detailed specifications. 
    • Switch with multiple configurations / combination camera + intercom setups
      • Using PoE power and 2-wire concurrently
  • Do not use PoE and 2-wire concurrently
    • Switch that has some PoE ports and some non-PoE ports
      • A camera and an intercom could be connected to the same PoE switch but with each port configured with different settings. For example, a camera could be connected to a switch port with 802.3at power (<50W available) with the intercom on a port that satisfies the 50W power requirement
    • Switch that has different types of PoE ports (some PoE+ ports and some PoE++ ports)
      • Camera could be connected to a switch port with 802.3at power (<50W available) with the intercom on a 802.3bt power (>50W available) PoE++ port 
    • Switch that has all PoE ports but has SW control to disable PoE per port
      • Very important for installer to disable PoE for Intercom’s port to ensure they don’t end up with an under-rated PoE source

Network Requirements

The network must provide at least 2Mbps download and upload speeds for the intercom to function properly. The intercom can connect to a WPA or WPA2 WiFi network. Currently, the intercom does not support connecting to hidden WiFi networks or WiFi networks that provide network access only after accepting terms & conditions via a browser (like how guests get access to WiFi networks in hotels or airport).