Link a contact to another Onoff number

(From the mobile application only)

If you have several Onoff numbers, the application will suggest that you assign the contact you wish to reach to the Onoff number of your choice on the first call.
The contact will then remain assigned to this number unless you change it manually.

You can change this setting.

From the home screen, go to your Onoff directory and open the contact's file.
Press "Assigned to" and select the default Onoff contact number.
The color of your contact record will then be identical to that of the selected Onoff number.