Telephonic communications – Telephone line or system combined with diverse electrical... – Having transmission of a digital message signal over a...
Reexamination Certificate
1997-03-31
2001-03-20
Kuntz, Curtis (Department: 2643)
Telephonic communications
Telephone line or system combined with diverse electrical...
Having transmission of a digital message signal over a...
C379S093060, C379S093070
Reexamination Certificate
active
06205208
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to the field of data communication. More specifically, the invention relates to processing of various types of data (e.g., voice, fax, data modem, video/multimedia, etc.) over a set of communication channels.
2. Background Information
As technology in computer and telephony networks emerge and, in some instances converge, there is a growing need for such networks, as well as the devices that interface to such networks, to support larger amounts of data traffic, as well as be able to process the various types of data that may be exchanged on such networks. For example, current digital telephone networks may be used for a number of applications, such as voice, fax, data, etc. To take advantage of the relatively low cost of data transmission over computer networks (e.g., a LAN, the Internet, etc.), systems have been proposed to provide telephony services via computer networks.
Unfortunately, current network interface systems provide relatively limited flexibility, especially in applications where voice data may be used (e.g., telephone conversations over a digital data network). Existing voice servers, for example, that allow voice transmission over digital data networks are limited to only one channel (e.g., one phone number). Furthermore, in applications where more than one type of data (e.g., voice, fax, data modem, video/multimedia, etc.) may be transferred over a digital network, current interfaces require that a particular channel (e.g., a particular phone number, transmission media/line, etc.) be specified and limited to one type of service, such as voice service, so that that type of data may be processed appropriately at the time of transmission and/or reception.
Thus, what is desired is a digital communication interface that allows greater flexibility when processing voice and other types of data exchanged/transferred over any number of channels in a digital network.
SUMMARY OF THE INVENTION
The present invention provides a method and apparatus for dynamically identifying and processing telephony data over each of a set of channels is provided. A system has one or more ports providing a set of channels for transfer of various types of (telephony) data (e.g., voice, fax, data modem, video teleconferencing, etc.). Upon detection of a data transfer request (e.g., a “call”) on one or more channels, the system dynamically identifies the type of data as voice, fax, data modem, etc., on the channel(s) and executes appropriate routines to process and route the data. According to one aspect of the invention, the telephony data is transferred in full and/or half-duplex and in real-time over a computer network and/or a telephony channel.
REFERENCES:
patent: 5283819 (1994-02-01), Glick et al.
patent: 5471522 (1995-11-01), Sells et al.
patent: 5577105 (1996-11-01), Baum et al.
patent: 5596628 (1997-01-01), Klein
patent: 5881233 (1999-03-01), Toyoda et al.
Detlefsen George D.
Kunz Christian
Spowage Mark
Blakely & Sokoloff, Taylor & Zafman
Kuntz Curtis
Ramakrishnaiah Melur
World One Telecom, Ltd.
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