The Yodel browser extension supported by Chrome & Firefox lets you click on numbers directly from your browser to start a call.

No matter if you're looking at a website's contact details, or work in your CRM system, or work with a Google Docs, every number will be clickable and you can immediately start a call without needing to switch to Slack first.

Yodel Business Phone System browser extension

Step 1: Click on the number you want to call. A new browser window with the Yodel interface will open: 

Clickable Numbers — Yodel

Step 2: Pick a number you want to call from in the drop-down menu (1.) and click on the "green call button" (2.) to initiate the call. 

Pick a number — Yodel

Alternatively, you can also type in a number as:[number] to start a call without going through Slack. 

How to add the "Click to Dial" extension

1. Go to and choose on the left side menu bar Apps.


Add Click to Dial — 1st Step

2. Just scroll down and you will be able to find the extension for Mozilla Firefox and Google Chrome.

Add Click to Dial — 2nd Step

Google Chrome: You will be forwarded to the Chrome web store page. Press the “Add to Chrome” button.

Yodel Phone System Chrome Extension

After that a Pop-up notification will show up. Press “Add extension” and you will be able to use the Click to Dial extension on your Chrome browser.

Add Yodel Extension to your browser

Mozilla Firefox: You will be forwarded to the Firefox browser ADD-ONS page. Press the “Add to Firefox” button.

Yodel Firefox Extension

After that a Pop-up notification will show up. Press “Add ” and you will be able to use the Click to dial extension on your Firefox browser.

Add Firefox Extension — Yodel

Google Chrome & Mozilla Firefox extension permissions explained

When you want to add the extension in the Chrome Web Store or in the Firefox Browser Add-Ons Yodel will ask you for permission to read and change data on websites that you visit.

Google Chrome Permissions for Yodel

This permission is necessary since the Yodel extension changes every number on a website to a link so you can make a call.
Other Google Chrome extensions such as Adblockers also ask for these kind of permission.

However, in case you don't want to give Yodel permissions for all sites, you can blacklist them:

Blacklist Sites for Yodel Extension

The Yodel Chrome Extension is an Open Source code so you can also have a look at the code we used here.