Restrict Outbound Calls for an Extension

Toll fraud is a global problem in telecommunication industry. It happens when hackers access your PBX system and make expensive phone calls from existing accounts. To prevent toll fraud, you can restrict outbound calls for an extension.


  1. Log in to PBX web portal, go to Extension and Trunk > Extension, edit a desired extension.
  2. Click Security tab.
  3. In the Call Restrictions section, select the checkbox of Disable Outbound Calls.
  4. Click Save and Apply.


  • Users cannot make outbound calls even if the extensions are selected in outbound routes.
    Note: Emergency Calls like 911 is not restricted.
  • On Extension list, is displayed in front of the extension.
    Note: To cancel the restriction of outbound calls, click to edit the extension, go to Security tab and unselect the checkbox of Disable Outbound Calls in the Call Restrictions section.