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Set up any SIP phone

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Connect a SIP-compatible desk phone that isn't covered by its own guide, using its web interface.

Most SIP desk phones can connect to your PBX. You enter the SIP details from a SIP device into the phone’s web interface. Field names differ between brands, so use the table below to match them.

For Yealink phones, see Auto-provisioning instead. There are also guides for Snom and Fanvil phones.

Before you start

Section titled “Before you start”
  1. Add a SIP device to the person’s User under Device configuration, and click Apply configuration.
  2. Open Devices at the top of the PBX tab and select the device. Keep its SIP credentials open: Domain, Username and Password, plus the Transport protocol.
  3. Connect the phone to your network and power. Your computer must be on the same network.

The Domain shows the server address, a colon and the port. Some phones want them together, others in separate fields.

1. Open the phone’s web interface

Section titled “1. Open the phone’s web interface”
  1. Find the phone’s IP address in its menu, usually under status or network information.
  2. Type the IP address into your web browser.
  3. Sign in with the phone’s admin username and password. These are in the phone’s manual, or from whoever supplied the phone.

2. Enter the SIP account

Section titled “2. Enter the SIP account”

Open the first account or line, and fill in:

Phone field (common names) What to enter
User ID, Username, Register name, Authentication user The Username.
Password, Authentication password The Password.
Domain, SIP server, Registrar, Server address, Proxy The server address: the Domain, with or without the port as the phone expects.
Port, Server port The number after the colon in the Domain.
Transport TCP, or TLS with SRTP if the device’s Transport protocol shows TLS (the port is different then).
Expires, Registration expiration, Subscription expires 120 seconds.
Display name Any name you like. It only shows on the phone.

Save the settings. Some phones need a reboot.

Check it works

Section titled “Check it works”
  1. In PBX › Devices, the SIP device shows Online. The phone’s status page usually shows the account as registered too.
  2. Make a test call and ask someone to call you.

If it stays offline, check every field again and see Softphone errors. A device that tries to register with a wrong password is blocked, and the block lifts after 5 minutes.

Section titled “Related”