Dialaunch vs Trengo: the Trengo alternative for WhatsApp calls

Trengo brings WhatsApp, email, chat and social messages into one inbox for support and sales teams, with automation and AI agents for messages. Trengo Voice lets teams make and receive phone calls inside Trengo with a local or migrated phone number, answered in the platform, a SIP softphone or a SIP desk phone. Trengo’s changelog also mentions sending WhatsApp templates after missed phone calls.

Dialaunch is for businesses whose customers call them on WhatsApp. On one WhatsApp phone you take one call at a time; the next caller hits a busy line. Dialaunch turns that number into a contact centre with an AI agent that sounds like a person, in HD voice with no lag.

Trengo’s public roadmap has a request titled “Enable WhatsApp voice calling in Trengo”, marked planned, describing customers unable to call a business’s connected WhatsApp number. At the time of writing (October 2026), we did not find documentation that WhatsApp voice calling has shipped in Trengo; check with them, as products change.

Dialaunch answers those calls. Each one goes through your flow: the AI agent, a keypad menu, a queue with hold music, opening hours with holidays and time zones, voicemail and fallbacks. Your team can listen live, whisper, take over in one click and hand the call back to the AI.

Both handle customer conversations. They differ on which calls they answer.

• WhatsApp voice calls: Trengo, a planned roadmap item (October 2026). Dialaunch, inbound WhatsApp calls, plus call-backs once the customer accepts a call permission request.
• Phone calls: Trengo Voice, with a local or migrated number. Dialaunch, your own number through your SIP trunk, with no provision or porting.
• Where agents answer: Trengo Voice in the platform, a SIP softphone or desk phone. Dialaunch in the browser, on a SIP desk phone or softphone, or on the agent’s own WhatsApp.
• AI on calls: Dialaunch’s AI agent answers in any language your customers speak, works from your own information and calls your systems through an API you connect.
• Call flows: Dialaunch, keypad menus, queues with hold music, opening hours, voicemail and fallbacks, on WhatsApp and phone calls alike.
• After the call: Dialaunch gives every call a summary, key moments and an outcome, with a timeline in call history and reporting on service level.

If your team lives in a shared inbox for email and messaging, needs a phone number provided or migrated, and WhatsApp is a chat channel for you, Trengo is a good all-in-one choice. Its messaging automation and integrations are broad.

Dialaunch fits when customers call you on WhatsApp and those calls ring out or hit a busy line. It takes many at once, resolves the routine ones with the AI agent, and passes the rest to your team on the phone they already use.

Many teams can keep Trengo for email and chats, and connect the WhatsApp number customers call to Dialaunch.

Once a WhatsApp number is connected to Dialaunch, it stops working in the WhatsApp Business app on that number, and the app’s chat history does not move over. Setup takes about 15 minutes with a guided flow; Meta’s approval of the number can take 1 to 3 days.