What people are saying - Write a review
We haven't found any reviews in the usual places.
Subscriber line signalling
Junction network signalling
12 other sections not shown
Other editions - View all
2-state continuous address information address signalling adopted analogue answer signal applied backward signalling battery Bell system bits block bothway buffer amplifier called party CCITT channel time slot circuit label clear back clear forward clear-forward signal common channel signalling country code d.c. signalling dBm0 decadic address detection dialling double seizure earth echo suppressor error control forward signal function incoming equipment incoming register indicate interregister m.f. signalling kbit/s line signalling system link-by-link loop current loop d.c. M-lead mode nalling national network off-hook on-hook operation outband signalling outgoing end outgoing equipment p.c.m. system postdialling delay proceed-to-send signal pulse signalling received relay release guard release-guard signal retransmission seizure signal sent signal code signal frequency signal repertoire signal transfer point signal unit signalling channel signalling condition signalling link signalling path signalling terminal speech channel speech circuits speech path switching equipment system 5bis tone tone-off transfer transit register trunk typically