Most agencies talk about AI. We decided to ship it. CAALLR started as DEVLPR's internal proof of concept — a fully functioning AI calling platform that we could use as a credibility anchor when pitching clients on AI-first product development.
The goal was simple: build something real that demonstrates exactly what we do for clients. An AI-powered inbound and outbound calling platform that works out of the box, handles lead qualification, appointment booking, and CRM sync — all without a human on the other end of the phone.
CAALLR is not a wrapper. It's a fully custom platform built on top of best-in-class voice infrastructure — ElevenLabs and Rime for voice synthesis, with a proprietary agent orchestration layer that handles conversation flow, CRM integration, and real-time analytics.
📞 Inbound AgentsAlways-on voice agents that answer calls, qualify callers, and route to the right outcome — booking, transfer, or message.
🚀 Outbound CampaignsLaunch AI-driven outbound calls at scale. Trigger from CRM data, Google Sheets, or manual lists with no-code campaign setup.
🎙️ 100+ Premium VoicesCurated voice library from ElevenLabs and Rime, filterable by gender, accent, and use-case. No robotic TTS — real, natural speech.
⚡ Pre-Built TemplatesLaunch in seconds with battle-tested templates: Lead Qualification, Database Reactivation, Property Management Receptionist, Invoice Reminders, and more.
🧠 Knowledge BaseUpload docs, FAQs, and product info. Agents retrieve context in real time during calls, giving accurate answers without hallucination.
📊 Real-Time AnalyticsTrack call outcomes, customer mood, appointment rates, and campaign performance — all surfaced in a clean analytics dashboard.
Every business is different. CAALLR's custom agent builder lets users define their own voice AI from scratch — or start from a template and modify. Configure the agent's personality, objective, knowledge, and CRM actions through a simple interface that abstracts all the complexity underneath.
The agent picker supports Incoming, Outgoing, and Template modes — with a growing library of prebuilt agent archetypes including Sales Receptionist, Credit Card Agent, Restaurant Booking, and Property Management.
Voice is the first impression. CAALLR ships with an extensive curated library of over 100 AI voices from ElevenLabs and Rime — filterable by gender, accent, and conversational style. From warm and trustworthy to crisp and professional, every agent sounds exactly right for its context.
DEVLPR built CAALLR on a modern, scalable stack designed for real-time voice workloads. The platform is built to handle high concurrency, low latency, and deep integrations with the tools sales teams already use.
Stack: Next.js · Node.js · ElevenLabs API · Rime TTS · WebSockets · Twilio · PostgreSQL · Redis · Stripe · HubSpot · Salesforce · Google Sheets API · OpenAI GPT-4o
.png)
.png)
