Click-to-Call Widget: Complete Setup Guide
Guide · 2026-03-31 · 6 min read
What is a click-to-call widget?
A click-to-call widget is a button on your website that lets visitors start a voice call with your team directly from their browser. Unlike traditional click-to-call (which opens the phone dialer), modern click-to-call widgets use WebRTC to create the call entirely in the browser. No phone number is dialed. No app is downloaded. The visitor clicks, your team answers, and a voice conversation starts.
How WebRTC click-to-call works
WebRTC (Web Real-Time Communication) is a browser technology that enables peer-to-peer audio and video communication. When a visitor clicks your call button: 1) the browser requests microphone access, 2) a secure connection is established using DTLS-SRTP encryption, 3) audio streams between the visitor's browser and your team's browser dashboard. The entire call happens in the browser — no phone lines, no PSTN, no per-minute charges.
Types of click-to-call solutions
Traditional click-to-call: Opens the visitor's phone dialer. Requires a phone number, does not work well on desktop, costs per minute. Callback widgets: Visitor enters their phone number, your system calls them back. Adds delay, requires phone infrastructure. Browser-to-browser (WebRTC): Visitor calls directly from the browser. No phone needed, instant connection, zero per-minute cost. WebCallHub uses the third approach — browser-to-browser — for the fastest, cheapest, and most seamless experience.
Where to place your call button
Placement directly impacts engagement. Best positions: 1) Pricing page — visitors comparing plans have buying questions. 2) Product/service pages — visitors reading about what you offer want details. 3) Contact page — obvious, but add it alongside your form. 4) Help center — customers with issues want fast resolution. 5) Checkout page (e-commerce) — reduce cart abandonment. Avoid placing it only on your homepage — deeper pages have higher intent.
Best practices
Set realistic availability. Only show the call button when your team is online. An unanswered call is worse than no call button. Use custom greetings. Set an offline message that captures the visitor's contact info. Match your brand. Customize the button color and position to fit your site design. Track performance. Monitor calls per day, conversion rate, and peak call times in your dashboard.
Setting up WebCallHub
1. Sign up for a free trial at webcallhub.com. 2. Add your website domain in the dashboard. 3. Copy the one-line script tag and paste it on your website. 4. Customize widget appearance (color, position, greeting). 5. Open the agent dashboard and set your status to online. 6. Test by visiting your website and clicking the call button. Total setup time: under 5 minutes.