Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
|“||[t]he process of exchanging information between two or more parties to initiate or terminate a communication session, and for the management and maintenance of the session.||”|
There are signaling methods that use either slowly pulsed direct current or voice band tones that are in predominant use between customers' premises and the local telephone office. These are used for voice and data communications.