The following guide will explain the steps necessary to configure extensions of the FreePBX.

Configuring an extension in FreePBX

Step 1. Navigate to Extensions, located under the Applications section at the top menu.

Step 2. On the Extensions page, click Add Extension and select Add new SIP (chan_pjsip) Extension from the dropdown menu (Fig. 1).


Fig. 1. Extensions page.

Step 3. In Add PJSIP Extension window, fill out these fields (Fig 2.):

  • User Extension: your preferred number for Internal number and SIP account username (e.g. 1234)

  • Display Name: your preferred name

  • Outbound CID: caller ID for making outbound calls

  • Secret: generated or your chosen password to register extension


Fig. 2 Add PJSIP Extension page.

Step 4. Complete configuration by clicking the Submit button on the bottom right side. Click on Apply Config located on the top right side.