JustCall alternative for WhatsApp calls: Dialaunch vs JustCall

JustCall describes itself as a cloud phone system for calls, texts and after-hours coverage. Its pages list local numbers in more than 70 countries, multi-level IVR menus, call queues with hold music and queued callbacks, routing by skill, language or time zone, and an AI Voice Agent that answers calls, qualifies callers, books meetings and hands off to a rep. It suits teams whose customers dial a phone number.

Dialaunch is for businesses whose customers call them on WhatsApp. On one WhatsApp phone you can take one call at a time, and the next caller hits a busy line. Dialaunch connects your WhatsApp Business number through Meta’s WhatsApp Business Platform so it takes many calls at once, each answered by an AI agent that sounds like a person, in HD voice with no lag.

JustCall’s help centre describes its WhatsApp integration as a way to message customers on WhatsApp from a JustCall number, found under the Messaging menu. Only JustCall numbers can be registered. At the time of writing (October 2026), we did not find documentation for answering WhatsApp voice calls in JustCall, or for running its IVR and queues on WhatsApp calls. Check with JustCall, as products change.

In Dialaunch, the WhatsApp call is the main event. The AI agent answers in any language your customers speak, using only your own information. It confirms orders, books appointments in Google Calendar, checks deliveries, creates callbacks and calls your systems through an API you connect. It says it is an AI, and hands the call to a person when the caller asks or is upset.

Both tools give a team shared calling. The difference is which channel the tooling is built for.

• Primary channel: JustCall, business phone numbers. Dialaunch, WhatsApp Business calls, with your own phone number joining through a SIP trunk.
• WhatsApp: JustCall, messaging from a JustCall number (October 2026). Dialaunch, inbound WhatsApp voice calls, plus call-backs once the customer accepts a call permission request.
• AI voice: JustCall offers an AI Voice Agent on phone calls. Dialaunch’s AI agent answers WhatsApp calls, takes actions and writes a summary, key moments and an outcome for every call.
• Call flows: both offer IVR menus and queues. Dialaunch runs keypad menus, queues with hold music, opening hours with holidays and time zones, voicemail and fallbacks on WhatsApp calls.
• Where agents answer: JustCall has its own desktop and mobile apps. Dialaunch rings the agent’s own WhatsApp, a SIP phone or softphone, or the browser. There is no Dialaunch mobile app.
• Supervision: Dialaunch lets you listen live, whisper, take over in one click and hand the call back to the AI.
• Phone numbers: JustCall provides numbers in 70+ countries. Dialaunch connects the number you already have through your SIP trunk and does not provide or port numbers.

If most of your customers dial a regular phone number, you need new numbers in many countries, or your sales team depends on JustCall’s dialers and CRM integrations, JustCall is a strong fit. It is also the natural choice if WhatsApp is only a messaging channel for you.

Dialaunch fits when customers call your WhatsApp number and you lose calls because one phone takes one call at a time. The AI agent answers every call, day and night, and your team steps in only where it adds value. You also get recording with consent and retention rules, call history with a timeline, and reporting on answer rate, abandoned calls, waiting times and service level per agent, team and number.

Many teams keep phone calls on JustCall and connect their WhatsApp number to Dialaunch. Setup takes about 15 minutes with a guided flow, and Meta’s approval of the number can take 1 to 3 days.

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. Plans start at €69 a month excl. VAT with AI minutes and seats included, and the 14-day trial includes 60 AI minutes.