WebCallHub vs Yuji AI Avatar

WebCallHub 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. No phone lines. No hardware. No apps to install. How It Works Visitors see a call button on your website They click it and enter their name Their browser connects directly to your support agent’s browser You talk — just like a phone call, but through the web Key Features Browser-to-browser calling — no phone system needed AI Receptionist — AI answers calls 24/7, qualifies leads, books appointments AI-to-Human Handoff — AI handles calls when you’re away, transfers to humans seamlessly Real-time transcription — live speech-to-text during calls Missed call lead capture — captures name, email, and reason when nobody answers Multi-agent routing — route calls to the right team member Mobile friendly — works on phones, tablets, and desktops Customizable — choose position, colors, and greeting text Page targeting — show on all pages, homepage only, or specific pages Free forever plan — 30 min/month, no credit card required GDPR compliant — EU data protection built in Perfect For Dental clinics and healthcare — AI books appointments while you’re with patients Real estate agencies — never miss a property inquiry, AI qualifies buyers 24/7 Law firms — capture after-hours legal inquiries before competitors Auto dealerships and service businesses — test drives booked automatically SaaS and consulting — AI demos features and qualifies leads Any business that loses leads to missed calls or contact forms Setup in 2 Minutes Install and activate this plugin Create a free account at webcallhub.com Add your website domain in the WebCallHub dashboard Copy your Site Key and paste it in the plugin settings Done — the call widget appears on your site! Pricing Free — $0/month forever (30 min/month, 1 agent, 1 website) Starter — $19/month (300 min/month, 2 agents, 2 websites, call recording, transcription) Growth — $49/month (2,500 min/month, 5 agents, 3 websites, CRM integration, AI agent ready) — Most popular Business — $149/month (5,000 min/month, 15 agents, 10 websites, API access, AI agents included, custom branding) Enterprise — Custom pricing (unlimited agents, SSO, SLA, dedicated account manager) External services 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. The plugin communicates with the WebCallHub service at app.webcallhub.com in two ways: 1. Loading the call widget script (app.webcallhub.com/api/widget.js) What it is: The JavaScript file that renders the click-to-call button and handles the WebRTC voice call. When it is sent: On every front-end page view where the widget is enabled and a Site Key is configured. What data is sent: Your configured Site Key (passed as the siteId 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. Why: The widget UI and the call session must be served by the WebCallHub service in order to establish a voice call. 2. Domain handshake on Site Key save (app.webcallhub.com/api/widget/wp-handshake) What it is: A one-time POST 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. What data is sent: Your Site Key, your WordPress site URL (home_url()), and the plugin version. No visitor data is sent. 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. 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. Service links: WebCallHub website: https://webcallhub.com Terms of Service: https://webcallhub.com/terms Privacy Policy: https://webcallhub.com/privacy

Most WordPress AI chatbots are text boxes. AI Avatar gives your visitors a real 3D digital human they can talk to with voice — the avatar lip-syncs in real time and replies with natural-sounding speech. Two ways to use Demo mode (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. Production mode — Plug in your own LLM (OpenAI, Claude, internal API) via our JavaScript SDK in external 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. Most production deployments use Production mode 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. Why a 3D avatar? More engaging than text — visitors talk longer, ask more questions, convert better Voice in / voice out — natural conversation, not typing Real-time lip-sync — the avatar’s mouth matches the speech, not a cheap GIF Drop-in — one API Key in settings, the bubble shows up in 3 minutes Features One-click embed via WordPress admin — no code editing Configurable position (4 corners), theme (light/dark/auto), primary color, size [yuji_ai_avatar] shortcode for per-page placement Site-wide auto-inject with per-page exclusion list Auto-detects WordPress site language — UI follows your site’s locale Bundled English + Simplified Chinese translations Async script loading — does not slow down your site No tracking, no admin nags, no “Upgrade to Pro” popups How it works Install and activate the plugin Sign up at avataraisdk.com and create an avatar Paste your API Key into Settings → AI Avatar Done — the chat bubble appears in the corner of your site Pricing The plugin is free and open source (GPLv2). The AI Avatar service has a free tier; paid plans scale with conversation volume. See pricing. External services This plugin connects to AI Avatar (third-party SaaS) to render the 3D digital human and process conversations. When the chat widget is shown on your site: Service: AI Avatar SDK (CDN) Endpoint: https://embed.avataraisdk.com/widget.iife.js Purpose: loads the JavaScript bundle that renders the 3D avatar What is sent: standard HTTP request only — no personal data When: on every frontend page where the avatar is configured to display Service: AI Avatar API Endpoint: https://avataraisdk.com/api/v1/* and https://avatar.avataraisdk.com Purpose: validates your API Key, processes visitor messages, returns AI text + TTS audio + lip-sync blendshapes What is sent: visitor chat messages (text and optional voice input), your API Key, originating IP, the page URL the widget is loaded on When: each time a visitor interacts with the chat widget By using this plugin, your visitors’ chat interactions are processed by AI Avatar’s servers. Service Terms of Service: https://avataraisdk.com/terms Privacy Policy: https://avataraisdk.com/privacy Privacy This plugin does not store any visitor data in your WordPress database. Plugin settings (API Key, appearance preferences) are stored in the wp_options table only. 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 External services above).