High-definition phone calls

Improve the call quality for your business with HD voice calls.
Outgoing Calls Hero

High-definition business phone calls

Forget background noise and muffled sounds, Chalkboard’s HD-quality phone calls allow you to experience crystal-clear phone calls on your business line. Don’t miss those important details during calls from now on; get started with a virtual number in minutes.

HD phone calls are essential for businesses that regularly connect with customers over the phone. With Chalkboard, it doesn't matter what type of smartphone you use, you'll always have that crisp, professional sound that leaves a lasting impression.

The easy way to share HD phone calls with your team

Chalkboard gives you all the business HD calling and messaging features you need, without a phone system.

Completely flexible

Text and call as a team with shared or private numbers. Flexible and simple.

Takes minutes to set up

No contracts, no phone system, no SIM cards, and no configuration. Just install the app and go!

All the features you need

Including missed call auto-reply, working hours, templates, and much more...

In call Black

How to make high quality business phone calls

Just install the Chalkboard app, choose your new phone numbers and the whole team can start making high-definition phone calls immediately.

Install the app

It's available on the Apple App Store® (for iPhone®), or on Google Play (for Android phones such as Samsung).

Instantly choose phone numbers

Now you can choose the phone numbers that you like and secure them instantly.

Customise your numbers

Set up your customisable auto-replies and voicemails. Don’t worry if you miss something, you can always make changes later.

Invite the team

With a few more taps, you can invite the rest of your team to install the app and share numbers. You're always in control of who has access to each number.

Choose Number Hero