1.Open your Call.com app
2.Select the Business account
3.If you do not have credits on on your business account, start from adding credits to your balance. Click the "Add" button next to the Balance.
4.After you added credits, click the "Add" button next to the Phone Numbers
5.After you entered the required information and selected preferable options, tap the Buy now button
6.6.Confirm your purchase. You will see your virtual numbers under the Phone numbers section now
How to assign virtual numbers in business account
Where can I view additional information on my Call.com account?