---
title: Trunk Group
description: A trunk group is an extension number that is used as a dial-by-name number for distributing a single pool of telephone numbers to many terminals on a private branch exchange (PBX).
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# Trunk Group

 By [Revation Systems](https://blog.revation.com/common-contact-center-metrics-industry-standards-list/author/revation-systems)

[![Read More: Integrate with Popular Email and Directory Applications](https://no-cache.hubspot.com/cta/default/7904435/d92d08e3-41a3-4810-b5a4-557c7e4a6226.png)](https://cta-redirect.hubspot.com/cta/redirect/7904435/d92d08e3-41a3-4810-b5a4-557c7e4a6226)

---

A trunk group is an extension number that is used as a dial-by-name number for distributing a single pool of telephone numbers to many terminals on a private branch exchange (PBX).

---

[![Read More: Meet Service Level Agreements (SLAs) with Real-Time Contact Center Metrics](https://no-cache.hubspot.com/cta/default/7904435/96a66d6d-976c-4b14-b62c-7bf304355ecd.png)](https://cta-redirect.hubspot.com/cta/redirect/7904435/96a66d6d-976c-4b14-b62c-7bf304355ecd)

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<https://blog.revation.com/common-contact-center-metrics-industry-standards-list/find-me-follow-me>

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<https://blog.revation.com/common-contact-center-metrics-industry-standards-list/social-service-level>

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<https://blog.revation.com/common-contact-center-metrics-industry-standards-list/processor>

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<https://blog.revation.com/common-contact-center-metrics-industry-standards-list/call-transfer>

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<https://blog.revation.com/common-contact-center-metrics-industry-standards-list/denial-of-service-dos>

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<https://blog.revation.com/common-contact-center-metrics-industry-standards-list/ieee-802.11-wireless-lan>

### [IEEE 802.11 wireless LAN](https://blog.revation.com/common-contact-center-metrics-industry-standards-list/ieee-802.11-wireless-lan)

<https://blog.revation.com/common-contact-center-metrics-industry-standards-list/omnichannel-customer-service>

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<https://blog.revation.com/common-contact-center-metrics-industry-standards-list/conference-calling>

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<https://blog.revation.com/common-contact-center-metrics-industry-standards-list/knowledge-management-system-kms>

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