bell system ks16301
aka klaxon horn
programmed in pbx as brdg-appr button on analog station port for the multi-button digital
A great teacher, does not provide answers, but methods to teach others "How and where to find the answers"
bsh
40 years Bell, AT&T, Lucent, Avaya
Tier 3 for 30 years and counting
http://bshtele.com