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Call Block

Super AdminTenant Admin

Call Block lets you define a list of phone numbers and patterns that get rejected before they can ring any extension. Each rule has an Action that decides what happens to a blocked call: Reject (busy), Hang Up or Hold.

ICTPBX call block blocked numbers list

Adding a Blocked Number

  1. Go to PBX › Call Block
  2. Click Add Block Rule
  3. Give the rule a name
  4. Enter the Number / Pattern to block
  5. Choose the Direction: Inbound, Outbound or Both
  6. Choose the Action: Reject (busy), Hang Up or Hold
  7. Optionally add a description so you remember why it was blocked
  8. Click Save
The Number / Pattern field takes an exact number or a regular expression. For UK callers, you’d use ^\+44 or ^0044.

Common Use Cases

  • Block known spam or robocall numbers
  • Block international prefixes if your business doesn’t take international calls
  • Block specific numbers that have been harassing your team