E.f. Johnson Company

Teknekron Infoswitch Corporation

William Earl Dunnigan

Troy V Frandsen

Dulie Reavill

E Fletcher Haselton

Gerald W Andrews

William J Redwood

An exemplary land mobile radio control head and method are provided. In one embodiment, the control head has the capability to utilize halo light of the control head to implement a multi-function indicator that communicates a state of the land mobile radio. In another embodiment, the control head has the capability to provide buffer images constructed from data received from the land mobile radio into a video stream for rendering on an electroluminescent display. In another embodiment, the control head provides the capability for a user to modify a configuration stored on the land mobile radio that defines one of several display modes to be utilized in generating data for use in forming images to be rendered on an electroluminescent display.

Control head with electroluminescent panel in land mobile radio

An automatic call distribution (ACD) switching system having a plurality of agent/trunk interface circuits for selectively connecting a plurality of telephone trunks to a plurality of agent workstations. The ACD switching system includes at least a first line interface module having a shelf control module for controlling a plurality of carrier card slots. At least one of the carrier card slots includes a carrier card for supporting a plurality of agent/trunk interface circuit 'subcards' in closely-aligned parallel relation to the carrier card. Each carrier card and the shelf control module include digital processing circuits and an HDLC transceiver to facilitate the interconnection of first and second agent/trunk interface circuits upon a call processing request for service. In the preferred embodiment, control information used to effect the interconnection of the agent/trunk interface circuits is transmitted throughout the switching system in a dedicated timeslot along a digital voice PCM bus. A second line interface module can be provided at a geographically-remote location from the first line interface module for remote processing. The first and second line interface modules are then interconnected via a T-1 span line.

Automatic call distribution (ACD) switching system having distributed

Growing community of inventors

Garland, TX, United States of America

William Earl Dunnigan