What is the fallback number for sipgate trunking?

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

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

If this is not the case, or the caller ID 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 can be set.

Fallback number dialog

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

P-Preferred-Identity: <sip:[e-mail]>

If you want to hide your caller ID please adjust the header as desired:

P-Preferred-Identity: <sip:[e-mail]>
Privacy: id