How can I withhold my caller ID?

Can I hide my phone number when calling from my Cloud Telephony system?

There are a few different ways in order to withhold your caller ID or CLI:

  1. If you are using the Windsor Phone app, you need to press the 'Withhold CLI' button and then type in the phone number you would like to call.
  2. Prefix the number with the following star code: *67 (for example: *670123456789).
  3. Go onto the phone system's portal and select 'Anonymous' to hide your CLI from all your calls.

If you would like further assistance call our Support Team on 0800 160 1111 or email