Call block

The Call Block application can be used to block inbound or outbound calls, based on the Caller ID Name and/or Number (for inbound calls), or the Destination Number (for outbound calls).

Creating a New Call Block

To create a new Call Block, click the Add button at the top-right of the Call Block list page. A simple form will be presented…


Field Descriptions

Direction - Select the direction of the calls you wish to block (Inbound or Outbound)

Extension - Select which extension (if any) the Call Block should affect.

Name - Enter the Caller ID Name that should be blocked. (Note: An exact, case-sensitive match is necessary, but this field can be considered optional if a Number is specified.)

Number - Enter the Country Code (eg. US = ‘1’) and the number to block. For Inbound calls, enter the calling party’s number. For Outbound calls, enter the Destination Number. (Note: An exact match is necessary, but this field can be considered optional if a Number is specified.)

Action - The action to take if the Name and/or Number is matched: Reject the call, play a busy signal, transfer to a specific extension, or voicemail box, etc.

Enabled - True or False

Description - The reason for blocking the number (? - you decide ;).

Note: Call Blocks can also be added in bulk using the Recent Calls list below the form.

Outbound Call Blocking

Outbound call blocking requires an additional dialplan entry.

If one doesn’t exist already, add a new call-direction Outbound Route to set call_direction=outbound


Be sure to set *Continue* to True, or dialplan execution will never reach your existing Outbound Routes!

Note: The screen capture example above could be for 10-digit numbers, such as those in the U.S, so you may want to adjust the regular expression used to match the destination number format being used in your current Outbound Routes.


Its usually sufficient to add the Number (Caller ID Number) to block and leave the Name (Caller ID Name) empty.