Who should read this article: All users
Enhance your contact center experience with click-to-call and click-to-SMS from any webpage.
Introduction
Contact your administrator or supervisor to determine whether the Voiso Chrome extension is permitted in your contact center and whether your account has the correct configuration and permissions to use it.
The Voiso Chrome extension enables automatic phone number identification on any webpage, including helpdesks, CRMs, and sales software. It seamlessly connects with Voiso for outbound calling and SMS.
When the Voiso Chrome extension is active, you can click any highlighted phone number on a webpage to dial a call or start an SMS from Agent Panel.
Click-to-call provides all standard Agent Panel features, including recording, transfer, conference, consultation, mute, hold, SMS, and call notes.
The Voiso Chrome extension simplifies your workflow. You no longer have to leave the current webpage to make a call or send an SMS—you can do it directly from the webpage, improving your productivity and efficiency.
Installing the Voiso Chrome extension
To install and start using the extension:
- Go to the Chrome Web Store and search for the Voiso Chrome extension, or open it directly.
- On the Voiso Contact Center page, click Add to Chrome.
- When prompted, click Add extension.
- In the browser menu bar, click the Voiso Contact Center extension icon.
- Click Log in to Voiso.
- On the Login page, enter your username and password, then click Login.
- Click the Extensions icon in the browser menu bar and pin Voiso Contact Center.
- Click the extension icon again and make sure Highlight phone numbers is enabled. Then click Launch Agent Panel.
- When Agent Panel opens, set your status to Available to begin receiving and making calls.
Using click-to-call
With numbers including country codes
Ensure that you have installed and activated the Voiso Chrome extension, then navigate to a browser window and open a page containing phone numbers.
If the page was already open, refresh the page to enable phone number detection.
To make a call, follow these steps:
- Find a phone number on the web page and hover your mouse pointer over it.

- From the tooltip, click the phone icon to call the number.
- The call is dialed automatically in Agent Panel.
Watch this short tutorial video to see how to use the Chrome Extension to make a call.
With numbers excluding country codes
Some web pages and CRMs store phone numbers as local numbers without a country code. To call these numbers, enable Use default country code in the Voiso Chrome extension and select the country code you want to apply.
When Use default country code is enabled, the extension prepends the selected country code to the number you click before sending it to Agent Panel.
To make a call from a local number, follow these steps:
- In the browser menu bar, click the pinned Voiso Contact Center extension icon.
- Ensure that Highlight phone numbers is enabled.
- Enable Use default country code, then select your default country code.
- Open the web page containing phone numbers. If the page was already open, refresh it.
- Hover your mouse pointer over a highlighted phone number.

- From the tooltip, click the phone icon to call the number.
- The call is dialed in Agent Panel with the selected country code prepended.
Watch this short tutorial video to see how to use the Chrome Extension to make a call and prepend a country code.
When Use default country code is enabled, the selected country code is prepended to any number you click. Disable this option if the numbers on the page already include country codes.
Using click-to-SMS
With numbers including country codes
Ensure that you have installed and activated the Voiso Chrome extension, then navigate to a browser window and open a page containing phone numbers.
If the page was already open, refresh the page to enable phone number detection.
To send an SMS, follow these steps:
- Find a phone number on a web page and hover your mouse pointer over it.
- From the tooltip, click the Message icon to open Agent Panel on the New SMS page. The phone number is automatically added in the To field.

- Select a Sender ID in the From field.
- Optionally select an SMS template in the Template field.
- Modify or enter your message in the Text SMS field.
- Click Send.
Watch this short tutorial video to see how to use the Chrome Extension to send an SMS.
With numbers excluding country codes
Some web pages and CRMs store phone numbers as local numbers without a country code. To send an SMS to these numbers, enable Use default country code in the Voiso Chrome extension and select the country code you want to apply.
When Use default country code is enabled, the extension prepends the selected country code to the number you click before opening the New SMS page in Agent Panel.
To send an SMS from a local number, follow these steps:
- In the browser menu bar, click the pinned Voiso Contact Center extension icon.
- Ensure that Highlight phone numbers is enabled.
- Enable Use default country code, then select your default country code.
- Open the web page containing phone numbers. If the page was already open, refresh it.
- Hover your mouse pointer over a highlighted phone number.

- From the tooltip, click the Message icon.
- Agent Panel opens on the New SMS page and the selected country code is prepended to the number in the To field.
When Use default country code is enabled, the selected country code is prepended to any number you click. Disable this option if the numbers on the page already include country codes.
Watch this short tutorial video to see how to use the Chrome Extension to send an SMS and prepend a country code.
Troubleshooting
The Chrome extension works only in normal browsing mode. Incognito mode is not supported.
If phone numbers are not identified on a webpage, make sure Highlight phone numbers is enabled in the pinned Chrome extension. If it is already enabled, refresh the page.
If the issue continues, contact your Voiso support representative, administrator, or supervisor.