Resources Contact Us Home
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
Automatic detection of image degradation in enhanced vision systems
System and method for receiving MBMS broadcasting service
Autobrake and decel control built-in test equipment
Soybean cultivar BY0811143
Image processing apparatus, image processing method, and program
Agents for preventing and treating disorders involving modulation of the ryanodine receptors
Cooling structure and cooling method for control rod drive mechanism and nuclear reactor
  Randomly Featured Patents
Method of making cordierite bodies
Fusion welding method and welded article
Automatic level control circuit for restricting sound level
Handle for a container
Offshore jackup hull-to-legs load transfer device and elevating and leg guide arrangement
Method and apparatus for the cooling of the outer shrouds of the rotor blades of a gas turbine
Method of and device for producing energy
Linear stepper motor
Method and system for providing emulated telephony over DSL
Spool assembly