Definition

What is Click to Call?

Click to call is a website feature that lets visitors start a phone call with your business using a single click — no manual dialling required. It removes the friction between a high-intent visitor and a live conversation, converting up to 3× more leads than a contact form.

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Converts 3× more leads · Works on all devices · 5-minute setup

Click to Call — Definition

Click to call is any mechanism on a website, email, or digital ad that initiates a phone call when a user clicks or taps it — eliminating the need to manually dial a number. The term covers three distinct implementations: simple tel: hyperlinks that open a mobile dialler, browser-based WebRTC calls that use the computer's microphone, and callback triggers (like LimeCall) where the system dials both parties and connects them.

Each variant reduces friction at a different level. The callback approach — where the visitor just enters their number and both parties are dialled automatically — produces the highest conversion rates because it works equally well on desktop, requires no browser permissions, and connects in 28 seconds.

Why Click to Call Works

3×

More conversions

vs. contact forms on the same page

Friction steps

One click to start a conversation

57%

Prefer phone

Of buyers for high-value decisions

28s

To connect

With LimeCall callback variant

3 Types of Click to Call

Not all click-to-call implementations are equal. Here is how they compare.

Type 1

tel: Link (Mobile Tap-to-Call)

The simplest implementation. A hyperlink that opens the device's native phone dialler on mobile. Free to add, no software required. Works perfectly on smartphones but limited on desktop.

Best for: Mobile-first sites, local businesses

Type 2

Browser-Based WebRTC Call

Uses the browser's built-in WebRTC protocol to make a VoIP call directly from the browser — no app or phone dialler needed. Works on desktop and mobile. Requires microphone permission.

JavaScript WebRTC API

Best for: Desktop users, SaaS products

★ Recommended

Callback Trigger (LimeCall)

The most effective variant. Visitor clicks the widget and enters their number. The software simultaneously dials the visitor's phone and an available agent — connecting both when they answer. Zero browser permissions required.

Visitor enters number → system dials both

Best for: Sales pages, highest conversion rate

How to Implement Click to Call

Three implementation paths — from the simplest HTML link to a full callback platform.

HTML tel: Link

Easiest

Best for mobile. Add to your nav, footer, and contact page.

<a href="tel:+441234567890" class="btn-call">
  📞 Call Us Now
</a>

LimeCall Widget

Recommended

Works on all devices. Includes call tracking, recording, and CRM sync.

<!-- Paste before </body> -->
<script src="https://limecall.com/widget.js"
  data-key="YOUR_KEY"></script>

Google Ads Call Extension

For PPC

Enables click-to-call directly from your search ads on mobile.

Add in Google Ads > Assets > Call assets
Enter your number — shows on mobile search ads

Frequently Asked Questions

What is click to call? ▾

Click to call is a technology that lets a website visitor initiate a phone call with a business by clicking a button or link — with no manual dialling required. On mobile, it uses the device's native dialler via a tel: link. On desktop, it uses browser-based WebRTC or a callback trigger that connects the visitor and an agent via simultaneous outbound dials.

What is the difference between click to call and callback? ▾

Click to call (using a tel: link or WebRTC) connects the visitor immediately using their own device to dial your number — the visitor makes the call. Callback (as offered by LimeCall) works differently: the visitor enters their number and the software dials both parties simultaneously, connecting them when both answer. Callback removes the need for the visitor to be near their phone or initiate the dial, and typically converts better because there is even less friction.

Does click to call work on desktop? ▾

Yes — with caveats. A simple tel: link only works on desktop if the user has a softphone or communication app (like Skype, Teams, or FaceTime) configured as the default handler. Browser-based WebRTC click to call works on any device with a microphone. The most reliable cross-device solution is a callback trigger: the visitor enters their number and receives a call — no browser permissions or app required.

How do I add click to call to my website? ▾

There are three ways. (1) Add a tel: link in HTML: <a href="tel:+441234567890">Call Us</a> — works instantly on mobile. (2) Add a LimeCall widget — a single JavaScript snippet adds a floating callback button that works on all devices in under 5 minutes. (3) Add a Google Ads call extension in your ad campaigns to show your number directly in search ads with a click-to-call button on mobile.

Why does click to call convert better than forms? ▾

Click to call converts up to 3× better than contact forms because it eliminates friction at the most critical moment — when a visitor has high intent and is ready to speak with someone. Forms require the visitor to type, wait, and hope someone follows up. A click-to-call interaction is immediate, synchronous, and creates a live conversation — the format with the highest close rate.

Is click to call free? ▾

A basic tel: link is free to add to any website and costs nothing beyond your standard phone minutes. Browser-based WebRTC click to call typically requires a paid plan with a VoIP provider. LimeCall's callback widget — the most conversion-effective form of click to call — starts at $35/month and includes call tracking, recording, and CRM integration.

Add Click to Call to Your Website Today

LimeCall's callback widget is the most effective click-to-call solution — works on all devices, includes call tracking, and connects visitors with your team in 28 seconds.

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