Vapi alternative for WhatsApp calls: Dialaunch vs Vapi

Vapi describes itself as a platform for developers to build voice agents that make and receive phone calls. Its documentation covers phone numbers (including importing numbers from carriers such as Twilio and Telnyx), SIP trunking, a transfer call tool with blind and warm modes, and squads of assistants that hand off to each other. It is a strong toolkit for engineering teams that want full control over every part of the agent.

Dialaunch is for businesses whose customers call them on WhatsApp and who want the result, not the project. On one WhatsApp phone you can take one call at a time, and the next caller hits a busy line. With Dialaunch, one WhatsApp Business number takes many simultaneous calls: each one is answered by the AI agent, routed to the next free agent, queued with hold music, or handled by the step you configured.

Vapi’s documentation index lists phone numbers, SIP and web calls, and no WhatsApp channel. A request to use Vapi voice agents on WhatsApp sits on Vapi’s public roadmap. At the time of writing (October 2026), we did not find documentation for answering WhatsApp voice calls with Vapi; check with them, as products change.

Dialaunch connects your WhatsApp Business number through Meta’s WhatsApp Business Platform. Customers tap call in WhatsApp as they always do, and the AI answers in any language they speak, in HD voice with no lag. It confirms orders, books appointments in Google Calendar, checks deliveries, creates callbacks and calls your own systems through an API you connect.

Both tools put an AI voice on calls. The difference is who builds it and which channel it is made for.

• Primary channel: Vapi, phone numbers, SIP and web calls. Dialaunch, WhatsApp Business calls, plus your phone number through a SIP trunk and website calls.
• WhatsApp voice calls: Vapi, no documentation found (October 2026). Dialaunch, inbound WhatsApp calls, and call-backs once the customer accepts a call permission request.
• Setup: Vapi, built by developers through an API and dashboard. Dialaunch, guided setup in about 15 minutes: paste your website, upload a catalog, add your answers.
• Handing to a person: Vapi transfers calls to a number or SIP destination you configure. Dialaunch hands the call to your team in queues, and it rings on the phone your team already uses: their own WhatsApp, a SIP desk phone or softphone, or the browser.
• Team control: Dialaunch lets you listen live, whisper, take over in one click and hand back to the AI. At the time of writing, we did not find a built-in human agent workspace in Vapi’s docs; check with them.
• Call flows: Dialaunch adds keypad menus, queues with hold music, opening hours with holidays and time zones, voicemail and fallbacks.
• Pricing: Vapi lists a per-minute hosting fee with speech, model, voice and telephony costs on top. Dialaunch has flat monthly plans with AI minutes included.

If you have developers and want to build a custom voice product, pick each component yourself, and run phone calls at scale through your own carriers, Vapi is a strong fit. It is also the natural choice when the voice agent is part of a product you sell, rather than a way to answer your own customers.

Dialaunch fits when your customers call your WhatsApp number and you want an AI agent that answers today, without a build. Every call gets a summary, key moments and an outcome. The AI says it is an AI, and it hands the call to a person when the caller asks or is upset. Your team keeps the full contact centre: queues, keypad menus, opening hours, recording with consent and retention, and reporting on answer rate, abandoned calls and service level.

Teams that already run Vapi on phone lines can keep it there and connect their WhatsApp number to Dialaunch. If you would rather have one system, Dialaunch can also answer your regular phone number through your own SIP trunk, in the same flows as WhatsApp.

Once a WhatsApp number is connected to Dialaunch, it stops working in the WhatsApp Business app, and the app’s chat history does not move over. Meta’s approval of the number can take 1 to 3 days. Plans start at €69 a month, with a 14-day trial and 60 AI minutes.