The basic voice mail service provided with Verizon Wireless plans holds up to 20 three-minute messages for 21 days. Visual voice mail is also an option offered through Verizon Wireless.
Visual voice mail provides the user with the option of handling all voice mails on the smart phone screen, while basic voice mail service requires the user to place a call to retrieve messages. Visual voice mail holds up to 40 five-minute messages for 40 days with the option to permanently archive them. While basic voice mail is free of charge, as of 2015, visual voice mail incurs a monthly fee unless the customer is using an iPhone.