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 communication system includes a voice subsystem and a multimedia subsystem. The voice subsystem couples to the PSTN and services a voice communication received by the communication system from a caller. The multimedia subsystem couples to the voice subsystem, supports multimedia communications and provides a multimedia interface to the caller upon receipt of the voice communication from the caller. When the call originates from a phone that supports multimedia communications, the multimedia subsystem directs the multimedia interface to the phone but, when the call originates from a phone that does not supports multimedia communications, the multimedia interface is directed to an associated multimedia enabled device. The voice subsystem provides call processing and routing functions as well as messaging functions and extended services. The multimedia subsystem includes an information posting subsystem and an information access subsystem that allow callers to post information and to access information.

Abstract: An integrated text based TTY system comprises a telephone network, a private branch exchange ("PBX"), a voice mail system, and a text server, all in communication with one another. The telephone network and the PBX are adapted to receive a TTY call from a calling party from a TTY device to a called party. The PBX is also in communication with a telephone to which the called party has access. The called party has access to the terminal device that is in communication with the text server via a network. The text server uses a identification information associated with the TTY call that identifies the called party, so that the text server can check a database of individuals able to receive the TTY call to determine whether the called party is in the database and is able to receive the TTY call.