Abstract: System are generally comprised of a (“PBX”) module, a text server, a voice mail system, at least one telephone, at least one terminal device, and in some cases, a computer network. Communication paths are used to selectively couple the above elements together, as needed to execute or implement the particular application or feature. Calls (TDD or otherwise) are initiated over the Internet or the world wide web to the text server, which is preferably in communication with the PBX module. The PBX module is in communication with a text server via modem. The text server is directly or indirectly in communication with a voice mail system and with the PBX module. The text server may be in communication with the voice mail system via voice card and PBX module or directly with certain voice mail system with specialized software. The PBX module is in communication with at least one telephone.

Abstract: A TTY telephonic display to receive a TTY message, having a first mode and a second mode, such as a letters mode and a characters mode. The second mode is a representation of the first mode and vice versa. The TTY telephonic display comprises a first line and a second line. The first line shows characters which have been typed, transmitted, and received in a figures mode. The second line shows characters in the second mode which have been typed, transmitted, and received in the first mode. The first line and the second line are shown simultaneously in close proximity with one another, such as over one another. A process of displaying a TTY message, which has a first mode and a second mode, comprises displaying a first line, the first line showing characters which have been typed, transmitted, and received in a first mode; and displaying a second line in the second mode in close proximity to the first line, the second line showing characters which have been typed, transmitted, and received in the first mode.