WebCallHub by HSG IT

<p><strong>WebCallHub</strong> adds a professional click-to-call widget to your WordPress site. When visitors click the call button, they connect directly to your support team through their browser using WebRTC technology.</p>
<p><strong>No phone lines. No hardware. No apps to install.</strong></p>
<h4>How It Works</h4>
<ol>
<li>Visitors see a call button on your website</li>
<li>They click it and enter their name</li>
<li>Their browser connects directly to your support agent’s browser</li>
<li>You talk — just like a phone call, but through the web</li>
</ol>
<h4>Key Features</h4>
<ul>
<li><strong>Browser-to-browser calling</strong> — no phone system needed</li>
<li><strong>Free for visitors</strong> — they just click and talk</li>
<li><strong>Mobile friendly</strong> — works on phones, tablets, and desktops</li>
<li><strong>Customizable</strong> — choose position, colors, and greeting text</li>
<li><strong>Page targeting</strong> — show on all pages, homepage only, or specific pages</li>
<li><strong>AI-powered</strong> — optional transcription and AI voice agent</li>
<li><strong>14-day free trial</strong> — no credit card required</li>
<li><strong>GDPR compliant</strong> — EU data protection built in</li>
</ul>
<h4>Perfect For</h4>
<ul>
<li>Customer support teams</li>
<li>Sales teams wanting to talk to website visitors</li>
<li>Professional services (law firms, consultancies, agencies)</li>
<li>SaaS companies wanting to reduce support ticket volume</li>
<li>Any business that values personal customer contact</li>
</ul>
<h4>Setup in 2 Minutes</h4>
<ol>
<li>Install and activate this plugin</li>
<li>Create a free account at <a href="https://webcallhub.com/app/signup" rel="nofollow ugc">webcallhub.com</a></li>
<li>Add your website domain in the WebCallHub dashboard</li>
<li>Copy your <strong>Site Key</strong> and paste it in the plugin settings</li>
<li>Done — the call widget appears on your site!</li>
</ol>
<h4>Pricing</h4>
<ul>
<li><strong>Starter</strong> — Free (14-day trial, 1 agent, 1 site)</li>
<li><strong>Pro</strong> — $49/month (unlimited agents and sites, transcription)</li>
<li><strong>Enterprise</strong> — Custom pricing (SLA, dedicated support)</li>
</ul>
<h3>External services</h3>
<p>This plugin relies on the WebCallHub service to provide browser-to-browser click-to-call functionality. WebCallHub is operated by HSG IT USA LLC (Austin, TX, USA) and HSG IT Services Oy (Finland), the same company that distributes this plugin.</p>
<p>The plugin communicates with the WebCallHub service at <code>app.webcallhub.com</code> in two ways:</p>
<p><strong>1. Loading the call widget script (<code>app.webcallhub.com/api/widget.js</code>)</strong></p>
<ul>
<li>What it is: The JavaScript file that renders the click-to-call button and handles the WebRTC voice call.</li>
<li>When it is sent: On every front-end page view where the widget is enabled and a Site Key is configured.</li>
<li>What data is sent: Your configured Site Key (passed as the <code>siteId</code> query parameter) plus the standard HTTP request metadata the visitor’s browser sends to any external script host (IP address, user agent, referring page). No visitor form data is submitted by the plugin itself.</li>
<li>Why: The widget UI and the call session must be served by the WebCallHub service in order to establish a voice call.</li>
</ul>
<p><strong>2. Domain handshake on Site Key save (<code>app.webcallhub.com/api/widget/wp-handshake</code>)</strong></p>
<ul>
<li>What it is: A one-time <code>POST</code> request sent from your WordPress server to the WebCallHub backend when you save a new Site Key in the plugin settings, or when the plugin is re-activated with a Site Key already configured.</li>
<li>What data is sent: Your Site Key, your WordPress site URL (<code>home_url()</code>), and the plugin version. No visitor data is sent.</li>
<li>Why: WebCallHub uses this handshake to verify that the WordPress install at the claimed domain is actually running the plugin, so it can auto-mark your site as domain-verified in the WebCallHub dashboard.</li>
</ul>
<p>Any voice call audio, visitor name, or transcript data is exchanged directly between the visitor’s browser and the WebCallHub service (not via this plugin’s PHP code) and is governed by WebCallHub’s own privacy policy.</p>
<p>Service links:</p>
<ul>
<li>WebCallHub website: <a href="https://webcallhub.com" rel="nofollow ugc">https://webcallhub.com</a></li>
<li>Terms of Service: <a href="https://webcallhub.com/terms" rel="nofollow ugc">https://webcallhub.com/terms</a></li>
<li>Privacy Policy: <a href="https://webcallhub.com/privacy" rel="nofollow ugc">https://webcallhub.com/privacy</a></li>
</ul>


WebCallHub — Click-to-Call Widget

Add a click-to-call button to your WordPress site. Let visitors call your support team directly from their browser — no phone, no app, no downloads.

yujitech

<p>Most WordPress AI chatbots are text boxes. <strong>AI Avatar gives your visitors a real 3D digital human</strong> they can talk to with voice — the avatar lip-syncs in real time and replies with natural-sounding speech.</p>
<h4>Two ways to use</h4>
<ul>
<li><strong>Demo mode</strong> (this plugin’s default) — Quick evaluation with our hosted demo LLM. Paste the API Key, the chat bubble shows up. No coding required. Ideal for evaluating the 3D avatar quality and the conversation UX.</li>
<li><strong>Production mode</strong> — Plug in your own LLM (OpenAI, Claude, internal API) via our <a href="https://www.npmjs.com/package/@ai-avatar/embed-sdk" rel="nofollow ugc">JavaScript SDK</a> in <code>external</code> mode. You keep full control over the conversation logic and data flow; the plugin / SDK only handles the 3D avatar rendering, lip-sync, and voice I/O.</li>
</ul>
<p>Most production deployments use <strong>Production mode</strong> so visitor messages never touch our LLM and stay within your existing chat / support stack. The plugin’s bundled chat exists for fast first-impression demos.</p>
<h4>Why a 3D avatar?</h4>
<ul>
<li><strong>More engaging than text</strong> — visitors talk longer, ask more questions, convert better</li>
<li><strong>Voice in / voice out</strong> — natural conversation, not typing</li>
<li><strong>Real-time lip-sync</strong> — the avatar’s mouth matches the speech, not a cheap GIF</li>
<li><strong>Drop-in</strong> — one API Key in settings, the bubble shows up in 3 minutes</li>
</ul>
<h4>Features</h4>
<ul>
<li>One-click embed via WordPress admin — no code editing</li>
<li>Configurable position (4 corners), theme (light/dark/auto), primary color, size</li>
<li><code>[yuji_ai_avatar]</code> shortcode for per-page placement</li>
<li>Site-wide auto-inject with per-page exclusion list</li>
<li>Auto-detects WordPress site language — UI follows your site’s locale</li>
<li>Bundled English + Simplified Chinese translations</li>
<li>Async script loading — does not slow down your site</li>
<li>No tracking, no admin nags, no “Upgrade to Pro” popups</li>
</ul>
<h4>How it works</h4>
<ol>
<li>Install and activate the plugin</li>
<li>Sign up at <a href="https://avataraisdk.com" rel="nofollow ugc">avataraisdk.com</a> and create an avatar</li>
<li>Paste your API Key into <strong>Settings <span aria-hidden="true" class="wp-exclude-emoji">→</span> AI Avatar</strong></li>
<li>Done — the chat bubble appears in the corner of your site</li>
</ol>
<h4>Pricing</h4>
<p>The plugin is free and open source (GPLv2). The AI Avatar service has a free tier; paid plans scale with conversation volume. See <a href="https://avataraisdk.com/pricing" rel="nofollow ugc">pricing</a>.</p>
<h3>External services</h3>
<p>This plugin connects to <strong>AI Avatar</strong> (third-party SaaS) to render the 3D digital human and process conversations. When the chat widget is shown on your site:</p>
<p><strong>Service: AI Avatar SDK (CDN)</strong></p>
<ul>
<li>Endpoint: <code>https://embed.avataraisdk.com/widget.iife.js</code></li>
<li>Purpose: loads the JavaScript bundle that renders the 3D avatar</li>
<li>What is sent: standard HTTP request only — no personal data</li>
<li>When: on every frontend page where the avatar is configured to display</li>
</ul>
<p><strong>Service: AI Avatar API</strong></p>
<ul>
<li>Endpoint: <code>https://avataraisdk.com/api/v1/*</code> and <code>https://avatar.avataraisdk.com</code></li>
<li>Purpose: validates your API Key, processes visitor messages, returns AI text + TTS audio + lip-sync blendshapes</li>
<li>What is sent: visitor chat messages (text and optional voice input), your API Key, originating IP, the page URL the widget is loaded on</li>
<li>When: each time a visitor interacts with the chat widget</li>
</ul>
<p>By using this plugin, your visitors’ chat interactions are processed by AI Avatar’s servers.</p>
<p>Service Terms of Service: <a href="https://avataraisdk.com/terms" rel="nofollow ugc">https://avataraisdk.com/terms</a><br />
Privacy Policy: <a href="https://avataraisdk.com/privacy" rel="nofollow ugc">https://avataraisdk.com/privacy</a></p>
<h3>Privacy</h3>
<p>This plugin does <strong>not</strong> store any visitor data in your WordPress database. Plugin settings (API Key, appearance preferences) are stored in the <code>wp_options</code> table only.</p>
<p>For GDPR / CCPA compliance, inform your visitors in your site’s privacy policy that messages typed or spoken into the chat widget are processed by AI Avatar’s third-party servers (see <strong>External services</strong> above).</p>


Yuji AI Avatar — 3D Digital Human Chat Widget

3D digital human for your site. Demo chat for fast eval; plug in your own LLM (OpenAI, Claude, custom) via the JavaScript SDK.

WebCallHub — Click-to-Call Widget vs Yuji AI Avatar — 3D Digital Human Chat Widget