Voice Telephony

Never lose another customer call to voicemail. Intelligent voice agents that answer on ring one.

We engineer custom conversational voice agents that pick up your inbound phone lines 24/7, speak naturally with zero awkward delays, answer questions, and book paying clients directly into your calendar.

Voice Latency<420msInstant natural conversation
Call Answering100%Zero dropped calls during peaks
Delivery Sprint14 DaysFirst working build in 72 hours
Code Ownership100% IPYou own every line and schema

Busy teams miss calls. Voicemails lose deals.

When prospective clients call your business, they want answers immediately. If your phone rings out or hits voicemail while your team is serving in-person customers, over 70% of callers hang up and call your closest competitor.

Traditional Agency & Off-The-Shelf Way
  • ×Robotic IVR phone trees with confusing 'press 1' menus.
  • ×Voicemails piling up while high-ticket leads call competitors.
  • ×Clunky third-party apps charging expensive per-minute markups.
  • ×Hallucinations and wrong promises made to callers.
The Cossence Studio Way
  • ✓Natural human conversation that answers questions instantly.
  • ✓Ring-one pickup 24/7/365 with live appointment confirmation.
  • ✓Custom code running on your own Twilio/SIP infrastructure with 100% IP handover.
  • ✓Strict deterministic guardrails that only answer from verified business data.

Built for speed, accuracy, and effortless scale.

Every system is architected from clean fundamentals with zero unnecessary bloat and 100% intellectual property ownership.

24/7 Availability

Instant First-Ring Pickup

Answers calls within milliseconds, day or night. Handles 50 simultaneous incoming calls during peak morning rushes without busy signals.

Barge-in Support

Natural Interruption Handling

Callers can interrupt mid-sentence just like talking to a real human. The voice stops speaking instantly and responds to the new question.

Live Sync

Real-Time Calendar Booking

Checks your Google Calendar, Outlook, or EHR for open slots and books the appointment live on the call with zero scheduling conflicts.

Warm Transfer

Smart Human Escalation

When a call requires personal attention or an urgent VIP inquiry arrives, the agent warm-transfers to your staff's mobile phone with full context.

Automated Sync

Instant CRM & SMS Summaries

Every conversation generates a concise bulleted summary, recording link, and caller tags pushed automatically to HubSpot, Salesforce, or Slack.

Complete IP

100% Full Code Ownership

You own the complete codebase, voice prompts, telephony configurations, and cloud infrastructure with zero recurring agency lock-in.

From architecture lock to production in 14 days.

No multi-month delays or agency bureaucracy. You receive your first testable working build within 72 hours of kickoff.

Sprint 01Days 1–3

Scope & First Working Call

We review your actual call recordings, map qualification criteria, and deploy a testable voice agent on a real phone number within 72 hours for you to dial and test.

Sprint 02Days 4–10

Live Integrations & Script Hardening

We connect your live calendar, CRM, and SMS pipelines. We stress-test background noise, accents, and interruptions until conversational flow feels effortless.

Sprint 03Days 11–14

Production Cutover & IP Handover

We route live phone traffic to your new voice pipeline with automated monitoring, deliver full repository access, and train your staff on monitoring calls.

Engineered for businesses where reliability matters.

Concrete commercial outcomes engineered across high-velocity industries.

Healthcare & Specialist Clinics

+140 Bookings/mo

Front desk staff can focus entirely on patient care while the voice agent books consultations, provides clinic directions, and checks insurance requirements.

Real Estate & Property Agencies

3x Lead Conversion

Never miss weekend or late-night buyers calling from property listings. Captures buyer budgets, verifies pre-approval, and books private viewings.

Home Services & Contracting Trades

Zero Missed Jobs

Contractors on active job sites can't pick up the phone. The agent answers emergency requests, quotes service call fees, and schedules technicians.

B2B Sales & High-Velocity Demos

<5 Min Response

When high-value enterprise leads submit a demo form, the system immediately phones them to confirm interest and schedule an executive meeting.

Everything you receive on Handover Day.

Complete ownership from day one. You receive full code repositories, cloud configurations, and documentation with zero recurring software licenses.

✓Complete source code repository with 100% intellectual property ownership
✓Dedicated Twilio or SIP telephony bridge configured in your private cloud
✓Real-time bidirectional speech pipeline (STT, LLM orchestration, low-latency TTS)
✓Bidirectional calendar integration (Google Calendar, Outlook, or industry EHR/CRM)
✓Automated post-call SMS confirmation and structured CRM webhook pipeline
✓30 days of comprehensive production warranty and latency optimization

Frequently asked questions.

Transparent answers regarding our 14-day delivery sprints, code ownership, maintenance SLAs, and scoping.

Have a specific question?

Speak directly with the lead engineer assigned to your build.

Ask our engineers directly→
How natural does the AI voice actually sound?
We use modern neural speech synthesis with sub-420ms turnaround. There is no awkward 3-second robotic delay. Callers experience a smooth, human cadence with realistic breath markers and tone variation.
Can the caller interrupt the voice agent mid-sentence?
Yes. Our pipeline includes full conversational barge-in. If the caller says 'Wait, what did that cost?' while the agent is speaking, the agent stops immediately and addresses the interruption naturally.
What happens if a caller asks something the agent doesn't know?
The system follows strict guardrails. It never invents policies or prices. If a query falls outside its verified knowledge, it politely clarifies or warm-transfers the caller directly to your team's mobile line.
Do we own the software, or are we paying a monthly software subscription?
You own 100% of the code, telephony workflows, and prompts. We do not charge software subscriptions or per-seat licensing fees. You only pay standard direct provider telephony fees (typically fractions of a cent per minute).
How long does it take from kickoff to receiving live calls?
Our standard production sprint is 14 days. You receive your first testable working voice build on a private phone number in 72 hours, with full production cutover completed by Day 14.

Schedule a 20-minute scoping review for AI Voice Agents.

Speak directly with our senior systems engineers. We analyze your live workflows, provide mutual NDA coverage, and return a fixed-price architectural delivery plan within 24 hours.