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.