Configuring 3CXPhone for an IP PBX

Important Notice: This article is outdated. 3CXPhone currently only works with the 3CX Phone System.

Configuring 3CXPhone for an IP PBX on the same LAN

If you are configuring 3CXPhone for use with a SIP server / PBX located on the same LAN (for example 3CX Phone System or Asterisk located in the same office), you need to configure it as follows:

  1. Start 3CXPhone from the 3CXPhone program group or by double-clicking on the tray icon.
  2. The first time you start 3CXPhone, it will automatically create a new connection profile. Otherwise, click the new button to create a new profile. Enter a name for the connection
    Configuring a LAN PBX connection
  3. Now enter your extension number (Auth ID), and your extension SIP credentials (SIP ID and Password)
  4. Select the option “I am in the office” and specify the local IP of the SIP server.
  5. Click OK to create the connection. Once you have logged in successfully, your extension number will be shown at the top on the right hand side.

Configuring 3CXPhone for a Remote IP PBX

If you are configuring 3CXPhone for use with a remote SIP server / PBX located outside of your network (for example, you are connecting from home to 3CX Phone System or Asterisk), you need to configure it as follows:

  1. Start 3CXPhone from the 3CXPhone program group or by double-clicking on the tray icon.
  2. The first time you start 3CXPhone, it will automatically create a new connection profile. Otherwise, click the new button to create a new profile. Enter a name for the connection
    Configuring a Remote PBX connection
  3. Enter your extension number (Auth ID), and your extension SIP credentials (SIP ID and Password)
  4. Select the option “I am out of the office” and specify the public IP of the SIP server.
    Configuring a Remote PBX connection using 3CX tunnel
  5. If your company uses 3CX Phone System, you can use the 3CX Tunnel, which tunnels all SIP traffic over a single TCP Port and eliminates firewall configuration. In this case, tick the option ‘Use tunnel’, and specify thelocal IP of the remote SIP server. Specify the Tunnel Password and the remote tunnel port. Contact your administrator for these details.
  6. Click OK to create the connection. Once you have logged in successfully, your extension number will be shown at the top on the right hand side. If you are connecting via the tunnel, you will see the tunnel indicator active.