Step 2: Add the Channel Communication Control to the Unified Interface form
- Sign-in to Dynamics 365.
- Go to Settings > Customizations .
- Expand Entites > Contact and select Forms .
- Select the Contact form of the Main type from the list.
- Select the phone field for which you want to add the control. Double-click the Business Phone or Mobile Phone field. The Field Properties dialog appears.
- In the Field Properties dialog, choose Controls tab, and select the Add control... option.
- In the Add Control dialog, choose Channel Communication Control , and select Add .
- In the Field Properties dialog, select the radio buttons for Web , Phone , and Tablet , and then select Ok .
- Select Save , and then select Publish to publish all customizations.