| Definition |
Extension is a Database modeling concept used to describe the structure, meaning, constraints, or organization of data before or after implementation.
Extension is a Telecommunications telephony or carrier concept used in public, private, local, long-distance, or enterprise voice service. Regulatory usage can vary by jurisdiction, so context matters when the term appears in tariffs, statutes, or public utility material.
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| Context & Usage |
Architects, analysts, developers, and technical writers use this concept to align business meaning with physical implementation.
Related concepts include Data Model and Attribute.
Carrier staff, enterprise voice teams, and regulators use this concept when describing telephone service, switching, interconnection, billing, and subscriber access.
Related concepts include Telecommunications, Telephone Network and Public Switched Telephone Network.
Additional Resource: FCC Telecommunications Overview.
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| Categories |
Technical Writing and Documentation, Web, Database, Cloud, and DevOps Technologies, Enterprise Applications, CRM, and Contact Center Systems
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