help • 9 Telephony • Set or hide phone numbers
9.2 Set or hide phone numbers
You have several phone numbers and would like one of these numbers to be signalled by default for outgoing calls?
Or you would like to make an anonymous call? Contact Mobile gives you the option of hiding your telephone number for outgoing calls.
To define which of your phone numbers should be signalled by default
1 In the dashboard, tap your caller ID next to your profile picture.
2 Select the phone number that should be used as the caller ID for outgoing calls.
3 Filter between My Caller ID and your Company Caller IDs or use the search to search for parts or even a complete Caller ID.
*The selected number is then signalled for every outgoing call, unless you actively select a different number for each call.
To hide your phone number
1 In the dashboard, tap your caller ID next to your profile picture.
2 Tap on Hide.
*Your phone number will no longer be displayed to your call partner for outgoing calls.
* 
Your phone number is hidden for outgoing calls until you deactivate the option again.