What does direct inward dialing mean?
Definitions for direct inward dialing
di·rect in·ward di·al·ing
This dictionary definitions page includes all the possible meanings, example usage and translations of the word direct inward dialing.
Wiktionary
direct inward dialingnoun
the ability to make an external telephone call to an internal extension within an organization
Wikidata
Direct inward dialing
Direct inward dialing, also called direct dial-in in Europe and Oceania, is a feature offered by telephone companies for use with their customers' private branch exchange systems. In DID service the telephone company provides one or more trunk lines to the customer for connection to the customer's PBX and allocates a range of telephone numbers to this line and forwards all calls to such numbers via the trunk. As calls are presented to the PBX, the dialed destination number is transmitted, usually partially, so that the PBX can route the call directly to the desired telephone extension within the organization without the need for an operator or attendant. The service allows direct inward call routing to each extension while maintaining only a limited number of subscriber lines to satisfy the average concurrent usage of the customer. Traditionally, DID circuits were analog. These types of DID trunks had to be powered by the customer premises equipment. The central office equipment detects the power state of the line and disables service if the circuit is not powered up. This is the reverse arrangement from standard plain old telephone service lines which are powered by the central office. Nowadays, it is far more common to deliver DIDs on a PRI circuit.
Numerology
Chaldean Numerology
The numerical value of direct inward dialing in Chaldean Numerology is: 2
Pythagorean Numerology
The numerical value of direct inward dialing in Pythagorean Numerology is: 4
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"direct inward dialing." Definitions.net. STANDS4 LLC, 2024. Web. 19 Apr. 2024. <https://www.definitions.net/definition/direct+inward+dialing>.
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