In order to change the number that is displayed when you make an external phone call, you can change your Outbound Caller ID by tapping on the “Caller ID” option:
You will then be presented with a list of options. While these options depend on your particular setup and use of templates, the following are usually present:
- Keep – No changes are done with regards to Outbound caller ID
- Work – The Outbound Caller ID is set to the user’s default work number
- Mobile – The Outbound Caller ID is set to the user’s default mobile number
Note that Outbound Caller ID’s are only available when using 3CX.