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Private branch exchange (PBX)

nounverified· unreviewed·updated Aug 30, 2026

GlossaryL1 — what DictionaryL2 — how used ThesaurusL3 — relations Universaleverything

A telephone system within an enterprise that switches calls between enterprise users on local lines while allowing all users to share a certain number of external phone lines.

MWEFederal Financial Institutions Examination Council (FFIEC) IT Examination Handbook Infobase, Glossary

Classifications

per-axis with provenance

Entity Type

System0%rule-basedmulti_axis_classifier_low_confidence.v1

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Sensitivity

—85%llm-generatedllm:claude-haiku-4-5

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Information Class

—80%llm-generatedllm:claude-haiku-4-5

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Variants

3 surface forms

plural: Private branch exchange (PBX)S
possessive: Private branch exchange (PBX)'s
pluralpossessive: Private branch exchange (PBX)S'

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