System allowing telephone customers to send and retrieve electronic mail messages using only conventional telephonic devices

Abstract

A novel communication system allows telephone customers to send and retrieve e-mail using only conventional telephone units. The system includes an 'E-mail Device' (EMD), which is a special host computer for enabling customers to remotely create, send, retrieve and store e-mail messages. The EMD resides in the central office as part of a PSTN, or with an Internet Service Provider (ISP). Subscribers to the e-mail service can give calling parties the option of leaving e-mail messages when the subscribers' telephone lines are busy. Customers can also create and send e-mail messages by either dialing an access code to connect directly to the EMD, or dialing an ISP with a resident EMD. Once connected to the EMD, the customer is guided through menus to send either pre-stored or custom e-mail messages to a chosen customer, telephone number, or e-mail address. The message information and details are entered via the touch-tone pad, or by voice, followed with voice-to-text conversion. Retrieval of e-mail messages is also through conventional telephone units by placing a call to the EMD and specifying the Destination Number of interest. The EMD can require the entry of a PIN for security purposes. Audio versions of the e-mail messages are played for the customer. The customer can then store the text versions of the messages if desired.