Build AI Voice Agents for Phone Calls & WhatsApp Without Coding
Most businesses waste hours daily on repetitive calls and customer queries. AutoCalls provides an all-in-one platform to automate phone conversations, WhatsApp chats, and web interactions with AI agents that sound human — complete with white-label options for agencies.
What Problem AutoCalls Solves
Businesses lose countless hours handling repetitive phone calls — appointment scheduling, FAQ responses, lead qualification. Hiring staff for 24/7 coverage is expensive, while IVR systems frustrate customers with rigid menu trees.
AutoCalls replaces these pain points with AI agents that handle natural conversations. The platform's proprietary DualPlex technology delivers human-like responses with 300ms latency — faster than most call center hold times.
Key benefit: A single AutoCalls assistant can replace 3-5 full-time call handlers while providing consistent 24/7 service across phone, WhatsApp, and web channels.
AI Assistant Builder Features
The platform offers three ways to build agents: classic text prompts, AI-assisted configuration, and visual flow builders for complex scenarios.
At 4:32 in the video, Stefan demonstrates the AI prompt editor where you can say "Change the assistant name to Alex" and the system automatically updates all configurations. This makes testing different personas incredibly efficient.
Enterprise-ready: Assistants can transfer calls to human reps, extract structured data (like booked appointments), and push information to 300+ integrated apps including HubSpot and Google Sheets.
Voice Cloning & Multilingual Support
Brand consistency suffers when overseas call centers use generic voices. AutoCalls solves this with voice cloning that works in multiple languages from a single sample.
The platform supports over 100 languages with a unique multilingual mode where agents dynamically switch languages mid-call based on customer input. No need for separate English/Spanish/French agents — one assistant handles all.
WhatsApp & Web Widget Integration
At 10:18 in the demo, Stefan shows how businesses can deploy the same AI agent across phone calls and WhatsApp conversations. The platform handles Meta's template approval process automatically.
Web widgets offer customizable chat interfaces that match your branding. Pre-chat forms can collect emails or phone numbers before the conversation starts — perfect for lead generation.
Omnichannel advantage: Conversations persist across channels. A WhatsApp chat can seamlessly transition to a voice call without losing context.
Outbound Call Campaigns
AutoCalls transforms cold outreach with AI agents that sound human while following strict compliance rules. The campaign manager lets you:
- Upload lead lists with custom fields (company name, previous interactions)
- Set timezone-aware calling windows
- Rotate through a pool of local numbers
- Automatically blacklist opt-outs
At 12:45 in the video, you'll see how call summaries and extracted data automatically populate your CRM — no manual data entry required.
White-Label Reseller Program
Agencies and SaaS entrepreneurs can rebrand AutoCalls as their own solution. The white-label program includes:
- Custom domains and branding
- Dedicated number provisioning
- Full WhatsApp sender management
- Your own pricing structure
This creates new revenue streams — one reseller shown in the video (at 14:20) charges clients $497/month for "their" call automation platform.
Watch the Full Tutorial
See the AutoCalls platform in action — including a live demo of voice cloning at 6:12 and WhatsApp template creation at 10:45.
Key Takeaways
AutoCalls eliminates the tradeoff between customer experience and operational costs. Instead of choosing between expensive staff and robotic IVRs, businesses get natural-sounding AI available 24/7 across all customer touchpoints.
In summary: The platform lets you automate calls, WhatsApp, and web chats with human-like AI — while giving agencies a turnkey white-label solution to resell.
Frequently Asked Questions
Common questions about this topic
AutoCalls supports three main types of AI voice agents: inbound call handlers that answer customer calls, outbound call agents for sales/marketing campaigns, and multilingual chat assistants for WhatsApp/web widgets.
The platform's DualPlex technology enables natural conversations with low latency across all modes. You can create specialized agents for appointment scheduling, tech support, lead qualification, or general customer service.
- 300ms response time — faster than call center hold music
- Seamless transfer to human agents when needed
- Context persists across voice and chat interactions
AutoCalls lets you clone voices by either recording directly in the platform or uploading voice samples (like WhatsApp messages). The process takes under 5 minutes for most languages.
The system supports cloning in multiple languages from a single sample, allowing your AI agent to speak with your brand's voice across different markets without re-recording. This maintains vocal consistency for global businesses.
- Works with 11Labs and Cartesia voice providers
- Supports emotional tone adjustment (friendly, professional, etc.)
- Optional pronunciation tuning for industry terms
Yes. The platform includes native integrations with HubSpot, Cal.com (connecting 100+ calendars), and an automation builder similar to Zapier with 300+ app connections.
Typical integrations include syncing call data to CRMs, triggering calls from CRM events (like new lead creation), or pushing WhatsApp conversations to your existing systems. The platform can also create tickets, update fields, or move deals between pipeline stages automatically.
- Zero-code setup for common CRM workflows
- Custom webhook support for proprietary systems
- Two-way sync maintains data consistency
Resellers get fully branded instances with custom domains, whitelabeled interfaces, and the ability to set their own pricing. There are no upfront fees — you pay only for the underlying usage.
The program includes dedicated phone number provisioning, WhatsApp sender management, and access to all platform features under your brand. Many agencies bundle this with implementation services at 2-3x the base platform cost.
- 100% white-label — no AutoCalls branding
- Your own support email/help center
- Co-marketing materials and sales training
Outbound campaigns let you upload lead lists (CSV/Excel) with customizable fields. The system automatically rotates through a pool of phone numbers to improve answer rates.
Key features include timezone-aware calling windows (to avoid late-night calls), automatic retry logic for busy signals, and real-time reporting. The AI handles objections naturally while qualifying leads based on your criteria.
- 40-60 calls/hour per agent (vs. 15-20 for humans)
- Dynamic call scripting based on responses
- Automatic CRM updates for qualified leads
The platform supports over 100 languages with the unique ability to handle multilingual conversations within a single assistant. This includes regional dialects and industry-specific terminology.
Agents can dynamically switch languages mid-call based on customer input without requiring separate configurations. The system also adapts formality levels (casual vs. professional) depending on conversation context.
- No additional cost for multilingual support
- Automatic language detection
- Cultural adaptation for greetings/closings
AutoCalls provides two WhatsApp integration options: using dedicated numbers purchased through the platform or bringing your existing numbers. Both methods support multimedia messages and template-based outreach.
The system handles Meta's template approval process automatically and provides full chat history with options for human takeover during conversations. You can also set up automated follow-ups based on interaction triggers.
- 90%+ template approval rate for compliant content
- Seamless handoff to live agents when needed
- Automatic CRM logging for all conversations
GrowwStacks specializes in implementing AutoCalls solutions tailored to specific industries like healthcare, legal services, and eCommerce. We go beyond basic setup to create specialized workflows that match your business processes.
Our team handles everything from voice agent design and CRM integrations to white-label deployment for agencies. Typical implementations take 2-3 weeks and include training for your staff.
- Free consultation to map your automation strategy
- Custom prompt engineering for your industry
- Ongoing optimization and support
Ready to Automate Your Customer Conversations?
Every minute spent on repetitive calls is revenue lost. GrowwStacks builds custom AutoCalls solutions that handle 80% of routine interactions — freeing your team for high-value work.