What is the fallback phone number in sipgate trunking?

Explanation of the fallback phone number in sipgate trunking and how it is configured.

If you configure a caller ID number in your phone system, it is automatically transmitted to the called party.

If this is not the case, or if the caller ID number cannot be transmitted in the format we require, sipgate sets a so-called fallback number. This can be set on the website in the Trunk settings set.

Fallback number dialog

For outgoing calls, please set the desired caller ID number in the E164-format (i.e. international, without leading zeros or "+" sign) as a new header:

P-Preferred-Identity: <sip:[email protected]>

If you want to suppress your number customize the header as desired:

P-Preferred-Identity: <sip:[email protected]>
Privacy: id