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What is a phone extension? How does it work?

A phone extension is a short string of digits that can be added to your main business number. Each extension has been assigned to an employee, project team, department, or even conference room. Dialing an extension automatically directs callers to the appropriate destination, saving time and eliminating confusion.

Phone extensions are an integral feature of VoIP business phone systems. Ringover’s unlimited user extensions make it easier than ever to route calls, maximize productivity, and empower your customer experience.

What is a phone extension? How does it work?

Streamline business communications with phone extensions

Organize teams, appear bigger, and manage calls better with Ringover’s convenient phone extensions.

Empower your customer experience

Empower your customer experience

Give callers the ability to reach a particular employee or group directly, saving time and minimizing frustration.

Simplify collaboration

Simplify collaboration

Make it easy for team members to reach each other and transfer calls with short internal numbers.

Maximize productivity

Maximize productivity

Improve business productivity by reducing the time it takes for customers to reach their department of choice.

Scale on your terms

Scale on your terms

Grow alongside your business with extensions that automatically direct customers to sales and customer service teams.

Other features you might be interested in

Enjoy unlimited VoIP calls to 110+ destinations

Enjoy unlimited VoIP calls to 110+ destinations

Make unlimited VoIP calls to more than 110 destinations worldwide. Establish a local presence no matter where you are with Ringover.

Interact with callers from the get-go with digit-enabled prompts

Interact with callers from the get-go with digit-enabled prompts

Ringover’s Interactive Voice Response (IVR) feature lets callers direct themselves with digit-enabled prompts while providing them with key information such as business hours.

Forward all your business calls

Forward all your business calls

Ringover’s call forwarding feature transfers all incoming calls to your mobile phone, home phone, or any other number you choose based on your schedule.

Personalize your call queues

Personalize your call queues

Upgrade your calling experience with a fully-customizable call queue that provides callers with their real-time position, on-hold music, and personalized messaging.

Our customers’ feedback

Overall Rating

4.6/5 281 reviews Based on 281 reviews.
This average is drawn from ratings of customers who have used any of the cloud communication services offered by Ringover.

Michelle S.

12 apr 2023

Good experience in general, professional as a company, I am satisfied.


11 apr 2023

Positive experience with Ringover which I use on the PC and with the application on the iPhone. We have been using Ringover for a few months in our company and it is generally going well. There is one small issue with my PC headset that needs to be resolved, but the customer service is quite responsive. Ringover is a good solution for small companies.

Youssef C.

13 apr 2023

Very satisfied as a freelancer I can control everything without going through an IT.

Nacéra B.

18 apr 2023

I use Ringover for my job. The tool is very easy, intuitive and convenient to use on a daily basis. As an administrator, I can easily filter according to the lines used for the study of statistics. Finally, the technical support is very reactive and efficient to answer my questions to perfect my use or during incident reports. I recommend it.

Nicolas T.

24 apr 2023

The Ringover phone application stands out for its impressive efficiency. Its dialer is particularly notable for its ease of use and high reliability.
In addition to these features, the application offers a complete call list, a fast call forwarding function, a powerful switchboard and the ability to send SMS and quick text messages. It also has an internal chat function, a powerdialer (automatic call) as well as external messengers such as messenger, WhatsApp, Instagram, mail and Google avis. All of these features make Ringover an extremely complete and highly reliable application.

Phone Extension FAQs

  • What’s the difference between a phone extension and a virtual phone number?
  • How do you dial extensions?
  • Do phone extensions work remotely?
  • Can you sign two extensions to one user?

What’s the difference between a phone extension and a virtual phone number?

Virtual phone numbers are phone numbers that receive inbound calls from the public. On the other hand, phone extensions are used to route inbound calls to a specific employee, team, location, or department. Both virtual phone numbers and phone extensions are considered “virtual” (meaning they aren’t hard-coded to a particular user).

How do you dial extensions?

For team members sharing the same business phone system, all they need to do is dial the extension directly from their handset to be connected. With the Ringover app, users can either enter the extension on the dial pad or tap the desired contact on their list of contacts.

Do phone extensions work remotely?

Yes, phone extensions allow employees to stay connected no matter where they are. Team members can simply dial each other from your company’s name directory without sharing their personal cell phone numbers.

Moreover, phone extensions work across devices, including desk phones and softphones. If a team member is planning to take time off, they can redirect their extensions to a supervisor’s or a colleague’s.

Can you sign two extensions to one user?

Yes. For example, you can assign a staff member to both their own extension and a group extension (such as customer service) to maximize their productivity. They’ll be ready to answer calls directed to them personally while remaining available to customers. As your business grows, you’ll remain able to add and remove extensions freely as you see fit.

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