How do I send calls anonymously?

In order to send calls anonymously via a CM SIP trunk, the following headers need to be included in the SIP invite:

privacy: id
This header defines the call to be anonymous. It overrides any information in the ‘FROM’ header, and overrides it with ‘anonymous’, making sure the CLI is not displayed.

P-Asserted Identity
This header is used to send a valid CLI with an anonymous call. Without this, a call is not accepted by either CM, or the carrier it is routed to.



Calls with a P-Asserted Identity in non-International number format will be surcharged with €0.25/minute

Last modified on: 07/08/2019
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