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Blacklist and whitelist – block or allow specific callers

Block nuisance numbers, reject anonymous or overseas calls, or allow only a list of approved callers to reach a line.

  1. Log in to the VoIP portal, open the Voice tab and click the number.
  2. From the Incoming Calls menu choose Blacklist and Whitelist Options.
  3. Tick Reject all anonymous calls to block callers who hide their number, and/or Reject all calls from overseas.
  4. In the Blacklisted or Whitelisted Callers box enter numbers one per line. Use * as a wildcard – 0800* matches every 0800 number.
  5. Set Matching Caller Action to Blacklist (block the listed numbers) or Whitelist (allow only the listed numbers).
  6. Optionally enter a forwarding number for blocked callers; otherwise they hear a busy tone.
  7. Tick Block all NZ mobiles from calling this number if you want mobile callers to hear a message that mobiles are not accepted.
  8. Click Save.

Test after changes – a wildcard that is too broad can block callers you want. Caller ID can be withheld or spoofed, so combine blocking with call screening where it matters.

Related: Call screening · Call barring (outgoing).

Still need help? Email [email protected] or log a ticket in the customer portal.