To add additional numbers to a Verizon account, customers will need to download the My Numbers app from the iOS App Store.
From there, Verizon users can choose the number to add from the available list, and it's ready to use alongside a device's primary phone number. This will allow customers to have one phone number for business and a separate phone number for personal use on one device.
With each number, there are separate voicemail and text messaging boxes in the My Numbers app to keep content from different numbers from getting mixed up.
According to Verizon, each number added to your smartphone will cost $15 per line per month.
Verizon's "My Phone" feature is similar to what Apple is doing with dual-SIM functionality in its latest iPhones, but it's not cross-carrier.
In the U.S., carriers (including Verizon) are not yet supporting the eSIM, which means the dual-SIM feature that allows for two phone numbers to be used at once is not yet available.