Authorized Self-Study Guide Cisco Voice over IP (CVoice)

Hoot and Holler

A hoot and holler network, as illustrated in Figure B-1 (also known as a junkyard circuit, squawk box system, holler down circuit, or shout down circuit), provides always-on multiuser conferences without requiring users to dial in to a conference bridge. This type of network was devised more than 50 years ago when local concentrations of small, specialized businesses needed to communicate common, time-critical information. Junkyard operators up and down the East Coast of the United States were among the first users of these networks. They began to install their own telephone wires, speakers (called squawk boxes), and microphones to share information with other locations about parts that their customers needed. These networks functioned ...