Consider two computers communicating with each other over a telephone line. Both computers may be operating automatically under the control of software, or one or both may be controlled by a person. When both computers are controlled by a person typing on their keyboard and reading what the person at the other end of the line types on their screen, the call is said to be "text-to-text" and is a  means for people with hearing impairment to use the 'phone. One person controlling their computer to communicate over the telephone with another under the control of software is in fact what is happening everytime you use the Internet through your telephone outlet. The Internet supersedes earlier services available via the telephone, which used a simpler protocol that is still used for text-to-text conversations (as opposed to Internet chatting) and is supported by WintextCom Personal Information Manager(tm). Most online services like bulletin boards that used the original telecommunications protocol relying upon a text-to-text connection have become Internet based, but WintextCom supports users, including Braille users, who require such services or to carry out text-to-text conversations.