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01CASE STUDY / VOICE AI

Voice AI Customer
Support Agent.

We engineered an intelligent voice agent that handles repetitive customer calls — answering queries, booking appointments, and escalating issues — so businesses can focus on what matters.

FOCUSAdvanced Engineering
TECHNOLOGIESASR · TTS · LLM · WebRTC
ENGAGEMENTFull-Cycle Build
02THE PROBLEM

Repetitive calls were
draining teams.

Customer support teams across industries face a universal bottleneck: a massive volume of repetitive, low-complexity calls that consume agent time, drive up costs, and erode customer satisfaction through long wait times.

Long Wait Times

Customers waited minutes in queues for questions that could be answered in seconds, leading to frustration and churn.

💸

Escalating Costs

Hiring, training, and retaining support agents for routine queries was an unsustainable cost center with diminishing returns.

🔄

Agent Burnout

Skilled agents spent 70% of their time on repetitive tasks instead of resolving complex, high-value customer issues.

📉

Limited Availability

Support was constrained to business hours, leaving off-hours queries unanswered and revenue on the table.

03THE SOLUTION

An AI agent that listens,
understands, and acts.

We built a voice-first AI support agent capable of handling end-to-end customer interactions — from answering FAQs and booking appointments to intelligently routing complex issues to the right human agent — all in natural, conversational language.

01

Intelligent Query Resolution

The agent understands natural speech, interprets intent accurately, and provides precise answers drawn from the company's knowledge base — no rigid menu trees, just real conversation.

02

Appointment Booking

Integrated directly with calendar and scheduling systems, the agent can check availability, suggest times, confirm slots, and send reminders — all within the same call.

03

Smart Escalation

When the agent detects sentiment shifts, complex requests, or topics outside its scope, it seamlessly transfers the caller to a human agent with full context — no cold handoffs.

04

24/7 Availability

The agent operates around the clock with consistent quality, handling peak-hour surges and off-hours calls without additional staffing.

04SYSTEM ARCHITECTURE

Four pillars of
voice intelligence.

The system is purpose-built around four core technologies, each carefully selected and tuned for production-grade reliability, low latency, and natural interaction quality.

ASR
AUTOMATIC SPEECH RECOGNITION

Hearing every word.

We deployed a state-of-the-art ASR pipeline that converts spoken language into text with high accuracy across accents, background noise, and telephony-grade audio. Custom language models were fine-tuned on domain-specific vocabulary to ensure precise transcription for industry-relevant terms.

Real-time streaming Noise-robust Multi-accent
TTS
TEXT-TO-SPEECH SYNTHESIS

A voice customers trust.

Rather than robotic synthesized speech, we implemented neural TTS that produces natural, warm, and brand-consistent voice output. The result is a conversational experience indistinguishable from a well-trained human agent, building caller confidence from the first syllable.

Neural synthesis Low latency Brand voice
LLM
LARGE LANGUAGE MODEL

The reasoning core.

At the center of the agent sits a fine-tuned LLM that handles intent classification, context management, response generation, and multi-turn dialogue. Retrieval-augmented generation (RAG) grounds every response in verified business data, eliminating hallucination and ensuring accuracy.

RAG-powered Context-aware Fine-tuned
WebRTC
REAL-TIME COMMUNICATION

Zero-latency delivery.

WebRTC provides the low-latency, peer-to-peer communication backbone that makes real-time voice interaction possible in any browser or device. Combined with adaptive bitrate and echo cancellation, callers experience seamless, interruption-free conversations.

Sub-200ms latency Peer-to-peer Cross-platform
05OUR PROCESS

From discovery to
production.

We follow a rigorous, transparent engineering process that keeps stakeholders informed and ensures every decision is validated before moving forward.

01
WEEK 1–2

Discovery & Research

We mapped the client's call center workflows, categorized incoming call types by volume and complexity, identified automation candidates, and defined success metrics with key stakeholders.

02
WEEK 3–4

Architecture Design

Designed the end-to-end system architecture — ASR pipeline, LLM orchestration layer, TTS output chain, and WebRTC communication layer — with clear performance SLAs for each component.

03
WEEK 5–10

Development & Integration

Built and integrated all system components iteratively, with weekly demos to stakeholders. Fine-tuned the LLM on domain data, configured the knowledge base, and connected appointment and escalation APIs.

04
WEEK 11–12

Testing & Optimization

Ran extensive load testing, adversarial conversation testing, and real-user pilot programs. Optimized ASR accuracy, reduced end-to-end latency, and hardened the escalation logic based on pilot feedback.

05
WEEK 13+

Deployment & Monitoring

Rolled out to production with real-time monitoring dashboards, automated alerting, and continuous improvement pipelines. The system learns from every interaction to improve over time.

06PROJECTED IMPACT

Measurable outcomes,
real value.

24/7

Always-On Coverage

The voice agent operates around the clock, ensuring no customer query goes unanswered regardless of timezone or business hours.

70%

Call Deflection

Routine queries handled autonomously by the AI agent, freeing human agents to focus on complex, high-value interactions.

<2s

Response Latency

End-to-end response time from customer speech to agent reply, delivering a natural conversational experience without awkward pauses.

40%

Cost Reduction

Projected savings in support operations through intelligent automation of repetitive tasks and optimized agent utilization.

07WHY ZEONE

Built by engineers who
understand voice.

Voice AI is not a plug-and-play problem. It demands deep expertise across speech processing, natural language understanding, real-time communication, and production-grade systems engineering. Zeone brings all of these disciplines together in a single, senior team.

01

End-to-End Ownership

From research to production, a single team owns every layer — no handoffs, no gaps, no excuses.

02

Production-Grade Standards

Every component is built for reliability, security, and scale from day one — not bolted on later.

03

Domain Fluency

We invest the time to deeply understand the business context so the technology solves the real problem.

04

Continuous Improvement

The system learns from every interaction, with monitoring and feedback loops built into the architecture.

08NEXT STEP

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challenge?

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