1. Start by selecting the contacts section.

2. Choose the contact that you want to add an additional phone number

3. On the next screen, select the specific tab to proceed.

4. Identify the area for managing phone numbers and click on it.

5. Then, press the Add Phone Number button to add more numbers.

6. Choose whether the new number will be tagged as from drop down list option

7. Now, input the new phone number in the provided text field.

8. If desired, designate this as the primary number by ticking the button

9. After inputting all the required details, save the changes with the Save button.

10. Finally, you can contact this customer by using these numbers.

