We built CallSphere so no business ever loses a customer to a missed call.
CallSphere LLC is an AI voice and chat agent company founded in Poughkeepsie, New York. We build agents that don't just answer the phone — they understand the request and carry it through to the outcome: a booked appointment, a resolved support case, a completed order.
Why we exist
Most small and mid-sized businesses run on the phone. A patient calls to book; a homeowner calls about a leak; a customer calls to place an order. And yet, on any given day, a huge share of those calls go to voicemail — during lunch, after hours, or when the front desk is already on another line. Each one is a customer who often just calls the next business on the list.
CallSphere started with a simple frustration: the tools meant to fix this either pushed callers into clumsy phone trees or handed off to a human the moment anything real needed to happen. We wanted an agent that could actually finish the job — understand what the caller wants, check the calendar or catalog, and complete the booking or the order, then hand off cleanly to a person only when it should.
So we built one. CallSphere's voice and chat agents share a single orchestration engine that moves a conversation from intent to outcome. They answer instantly, speak 57+ languages, and go live in a few days rather than a few quarters — because a small business shouldn't need a six-month implementation to stop losing calls.
“Every business I talked to had the same problem — they were great at the work, but the phone was leaking customers. We built CallSphere so that an agent answers on the first ring and actually gets the caller what they came for.”
Sagar Shankaran
Founder, CallSphere
What Drives Us
A few principles shape everything we ship.
Outcomes, not transcripts
We measure ourselves by booked appointments, resolved tickets, and completed orders — not by how human the agent sounds.
Answer every call
A missed call is a lost customer. Our agents pick up instantly, around the clock, in 57+ languages.
Earn trust on data
Payments run through PCI-DSS providers (Stripe, Square). We add role-based access, encryption, and audit logging on top.
Live in days, not quarters
Most businesses go live within 3–5 days with zero-code configuration — no long professional-services engagement.
How we got here
A short, honest timeline — we're an early-stage company building in the open.
The idea
After watching small businesses lose customers to voicemail and hold music, we set out to build an agent that could actually finish the job a caller phoned in for.
First production agents
We shipped voice and chat agents for real businesses — booking appointments, answering questions, and capturing leads on live phone lines.
A growing suite
Today CallSphere runs a growing suite of AI voice and chat agents across multiple industries, from healthcare and dental to salons, IT helpdesks, and property management.
What we build
Voice and chat agents that share one orchestration engine, so every channel can carry a request all the way to the outcome.
Agentic Voice Agents
Our flagship offering. AI-powered voice agents that answer instantly and orchestrate the customer journey from understanding intent to completing the request — with no hold music and clean human handoff.
Agentic Chat Agents
Text-based automation for customers who prefer to type. It uses the same orchestration engine as our voice agents, so chat conversations reach the same outcomes.
Early results
Figures observed in early customer pilots. Results vary by industry, call mix, and configuration.
Order closure rate (early pilots)
Tier-1 auto-resolution (early pilots)
Typical time to go live
Who we work with
We're a young company, and we'd rather be honest than inflate a logo wall. Early customers include Playfunia, a children's indoor play center, and Brighter Tomorrow Therapy, a behavioral-health practice — both running CallSphere agents on live phone lines.
Headquarters
Poughkeepsie, NY
Phone
(845) 388-4267Support Hours
9am - 7pm ET | Agents 24/7
How our agents work
A consistent three-step workflow takes a request from intent to outcome across every channel.
Discover
The agent listens to or reads the customer's request and understands their intent using semantic understanding—meaning, not just keywords.
Decide
Apply relevant filters and constraints: dietary restrictions, price ranges, availability, insurance coverage. Build a cart or proposal based on these decisions.
Complete
Process the transaction through secure channels, confirm via SMS/email, and provide tracking information with escalation paths for follow-up.
Ready to stop losing calls?
Book a 30-minute walkthrough to see how CallSphere voice and chat agents can automate your ordering, support, and scheduling.