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What is a Key System Phone?

A key system is reminiscent of landline phone structures. All phones share the same lines, so a call on line 1 was a call on everyone’s line 1. This enables calls to be held at one location and picked up at another location.

Key systems limit the number of calls that can be held by all phones that participate in the system.

They inherited a lot of modern PBX features over time and might be seen as the more economical choice between the two.

See why 100,000 companies trust Nextiva for VoIP service.

I'm a big fan of companies like Nextiva.

Steve Wozniak
Co-Founder of Apple

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Steve Wozniak

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What is a Key System Phone?

See why 100,000 companies trust Nextiva for VoIP service.

I'm a big fan of companies like Nextiva.

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I’m a big fan of Nextiva

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Agent Tooling

AI Use Cases

Analytics

Architecture

Intelligent Routing

Journey Orchestration

Outbound Dialing

Platform

WEM Aspect

Versatile platforms powering your business with innovation and efficiency.

See more

For every industry, there’s a Nextiva solution

And for any size business.

Small Business

Enterprise

Deliver end-to-end personalized experiences at scale

What is a Key System Phone?

See why 100,000 companies trust Nextiva for VoIP service.

I'm a big fan of companies like Nextiva.

Trusted by millions of users daily

4.6/5

4.8/5

I’m a big fan of Nextiva

Get a (free) live demo

Download the NextivaONE app.

Desktop

Mobile

Trusted by millions
of users daily