Matches 1 - 9 out of 9
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5825858 Collaborative conference bridges  
A method and apparatus for executing a conference call session between parties provides collaboration between nodes having separate conference-bridging capabilities, so that selection from a number...
5426021 Liquid or low melting bis-phenol stabilizers for yellow image dye stabilization in ektacolor paper  
A photographic element containing a silver halide emulsion layer having associated therewith, a dye-forming coupler and a dye stabilizer which has a melting point of less than 150° C. (and...
4797876 Conferencing bridge  
A conferencing bridge is provided for an electronic telephone system to support telephone conversations involving three or more parties. The conferencing bridge implements a conferencing algorithm...
4674083 Time division multiplexed switching structure for PBX  
An improved time division multiplexed switch, particularly useful in a private branch telephone exchange. Any number of ports, limited only by the drive capability of the devices used, may be...
4641300 Digital tie line  
The digital tie line provides a high speed pulse code modulation (PCM) digital path between private branch exchange (PBX) systems. The invention has a capability of providing a plurality of...
4597075 Modular switching network for telecommunication system  
A plurality of routing modules in a switching network of a telecommunication system each includes several interfaces connected to a first channel concentrator via respective data stores receiving...
4578789 Simultaneous voice and data communication and data base access in a switching system using a tone bus or broadcast mode  
A combined telecommunications and data communications system operates by partitioning data wherein the PCM speech transmission data field is used to contain both digitized speech and other data in...
4577065 Meet-me conference arrangement  
A telephone switching office having a plurality of meet-me conference bridging systems is disclosed. An access code is assigned to each conference, and at an agreed upon time, all conferees for a...
4499577 Linear time division multiplexed conferencer for data transfer applications  
There is disclosed a general purpose linear time division multiplexed conference system for continuously summing and supplying digital message samples arriving in time slots within a frame. The...
Matches 1 - 9 out of 9