Deploy intelligent voice agents that handle inbound calls, run outbound campaigns, and integrate with your existing tools — all powered by cutting-edge AI.
From inbound call handling to outbound campaigns, CallStackAI gives your business a voice that never sleeps.
AI-powered agents answer every call instantly. Route, qualify, and resolve customer inquiries 24/7 without hold times.
Launch automated outbound calling campaigns for lead qualification, appointment reminders, and customer follow-ups at scale.
Every conversation is transcribed in real time with speaker diarization, searchable logs, and exportable records.
Understand caller emotions in real time. Automatically escalate frustrated callers and flag opportunities for your team.
Seamlessly sync call data, transcripts, and outcomes with your CRM. Two-way sync with Salesforce, HubSpot, and more.
Track call volume, resolution rates, sentiment trends, and agent performance with real-time dashboards and custom reports.
Three simple steps to deploy your AI voice agent.
Define your agent's personality, knowledge base, and call flows using our visual builder. No coding required.
Forward your existing business number or provision a new one. We support local numbers in 40+ countries.
Your AI agent starts handling calls immediately. Monitor performance and fine-tune from the dashboard in real time.
Two prebuilt agents ship today. What makes them different is not what they say — it is what they are built to refuse to say.
A front-desk receptionist, not a medical provider. The agent books appointments, answers service questions and captures leads — and is built to refuse medical claims, diagnoses and outcome guarantees. A non-medical-advice disclaimer is carried on every resolved agent, not left to whoever wrote the prompt.
HVAC, plumbing, electrical, landscaping and contracting. A dispatcher for homeowners who need something scheduled — or need it today. It is built to refuse binding price quotes over the phone and to make no claim about code compliance or licensure, with a non-binding-quote disclaimer on every resolved agent.
Both agents above are built on the same universal base template, so a new vertical is authored rather than engineered. Legal intake, dental and real estate are where we are looking next. We are not going to list them as available while they are not — ask us and we will tell you honestly where yours sits.
Connect CallStackAI to the tools you already use.
No credit card required. Get up and running in under 5 minutes.
14-day free trial on all plans. Cancel anytime.