Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Methods of and systems for monitoring a first call connection while effecting the establishment of a second call connection










Image Number 13 for United States Patent #4399532.

A second-incoming call appears at an attendant facility (34) within a PBX system (20) while the attendant is awaiting a response on a first-incoming call. The attendant activates an overlap button (35) to facilitate the conversion of the first-incoming call into a listen-only connection. The attendant then establishes a two-way connection between the attendant and the second-incoming call to be served by the PBX system (20). Thereafter, the attendant monitors the first-incoming call on a listen-only basis while simultaneously serving the second-incoming call associated with the two-way connection.








 
 
  Recently Added Patents
Mobile communication apparatus
Dynamic bar oriented user interface
Note tab
Storage system with LU-setting function
Security patch update processor
Weight-balanced polygonal mirror, light scanning unit using the polygonal mirror, and image forming apparatus
Point-of-sale server and method
  Randomly Featured Patents
Thin-walled splined and flanged power transmission member
Remote control transmitter
Scanning type laser system
Amplifier with pixel voltage compensation for a display
Differential current evaluation circuit and sense amplifier circuit for evaluating a memory state of an SRAM semiconductor memory cell
Brush seals for steam turbine applications
Luminescent materials consisting of nanocrystals with core/shell structure and method for preparing same
Method and apparatus for improvement of sparse matrix evaluation performance
Method and apparatus for generating layout regions with local preferred directions
Corrosion inhibitors and synergistic inhibitor combinations for the protection of light metals in heat-transfer fluids and engine coolants