> ## Documentation Index > Fetch the complete documentation index at: https://help.withallo.com/llms.txt > Use this file to discover all available pages before exploring further. # Call Phone Numbers From Websites > Turn on Use Allo for phone links in the Allo web app, and clicking a phone number on a website or in a web CRM starts the call in Allo To call a phone number from a website in one click, turn on **Use Allo for phone links** in the Allo web app, then allow it in your browser. After that, clicking a phone link on a website or in a web CRM starts the call in Allo, from your Allo number. You no longer retype the number. ## Before you start * Use Google Chrome or Microsoft Edge on a computer. The setting does not appear in Safari or Firefox. * Sign in to the Allo web app at [web.withallo.com](https://web.withallo.com) in that browser. * The setting is saved in this browser only. Turn it on again in each browser and on each computer you use. * The setting is for the web app. It does not appear in the Allo desktop app. ## How to turn on phone links In the Allo web app, click **Settings** in the left sidebar, then **Profile**. Allo settings sidebar with Profile highlighted under Personal Scroll to the **Click-to-call** section and turn on **Use Allo for phone links**. The Click-to-call section of Settings > Profile, with the Use Allo for phone links switch highlighted Chrome shows a prompt under the address bar: **web.withallo.com wants to Open tel links**. Click **Allow**. Chrome prompt under the address bar reading web.withallo.com wants to Open tel links, with the Allow button highlighted In the same section, pick a line in **Line used for click-to-call**. Calls from phone links always use this line. If you skip this step, Allo asks which line to use the first time you click a phone link, then remembers your choice. With one line, Allo uses it and there is nothing to choose. ## Try it Go to a website that shows a phone number as a link, such as a contact page, and click the number. The Allo web app opens and the call starts. A business contact page with its phone number link highlighted If you have more than one line and have not chosen one yet, Allo shows **Choose a line for this call**. Select a line and click **Start Call**. ## How to turn off phone links Go to **Settings** > **Profile** in the Allo web app and turn off **Use Allo for phone links**. Phone links in this browser then open the way they did before. You can also remove Allo in Chrome. Go to `chrome://settings/handlers` (**Protocol handlers**). Under **tel**, click the three dots next to web.withallo.com, then click **Remove**. Chrome Protocol handlers settings, with web.withallo.com listed as the default for tel and the Remove option highlighted If you remove Allo there, the switch in Allo still shows as on. Turn it off and on again to set up phone links again. ## Troubleshooting Phone links work only when the website shows the number as a link. A number written as plain text does not start a call when you click it. Copy the number into the Allo dialer, or install the [Allo Chrome Extension](/en/integrations/chrome-extension). The extension adds a call button next to phone numbers on web pages, including plain text numbers. Your browser still sends phone links to another app. 1. In the Allo web app, go to **Settings** > **Profile** and check that **Use Allo for phone links** is on. 2. Turn it off and on again, then click **Allow** in the browser prompt. 3. In Chrome, go to `chrome://settings/handlers`. Under **tel**, web.withallo.com should show **Default**. If it does not, click the three dots next to it, then **Set as default**. Go to **Settings** > **Profile** in the Allo web app, turn **Use Allo for phone links** off and on again, then click **Allow** in the prompt. If no prompt appears, go to `chrome://settings/handlers` in Chrome and check that **Sites can ask to handle protocols** is selected. Then turn the switch in Allo off and on again. The switch in Allo shows as on even when the browser did not allow it. Test with a phone link to be sure. The setting appears only in the Allo web app, in Chrome or Edge. Open [web.withallo.com](https://web.withallo.com) in one of these browsers and go to **Settings** > **Profile**. ## Related pages Make calls from other apps go through Allo on your phone Choose which number your outbound calls use Call any phone number you see on a web page Get help from the Allo team This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.