CG TECH

OpenAI · Technologies

Realtime API

Voice agents that keep up with conversation.

The Realtime API powers speech to speech agents that listen, think and reply with the timing of a human conversation, on the phone or in your product. We design and build voice agents with the guardrails and the human handoff done properly, because voice is where AI meets your customers directly.

VOICE AGENTS · EXAMPLE DEPLOYMENT

AGENT

CHANNEL

LATENCY

STATUS

Reception-Line

Phone

Low

LIVE

Booking-Bot

Web widget

Low

LIVE

After-Hours

Phone

Low

LIVE

Escalation

Human handoff

Instant

REVIEW

IVR-Legacy

Menu tree

Painful

MIGRATE

Sample deployment

live · review · migrate

In plain terms

Nobody has ever enjoyed pressing one.

Voice agents replace menu trees with conversation. Here is what changes.

Without it

  • Callers navigating menus built in another decade
  • After hours callers reaching voicemail nobody checks
  • Simple questions consuming skilled staff time
  • Web visitors bouncing rather than typing into a form

With it

  • A natural conversation that handles interruptions
  • Twenty four seven answers for the routine calls
  • Staff handling the calls that genuinely need them
  • A voice agent that hands to a human the moment it should

What CG TECH can do with the Realtime API

The work, broken into the parts that matter.

How an engagement runs

From menu trees to a live voice agent, step by step.

01

Discover

We map call volumes, common intents and the moments that need a human.

02

Design

Conversation scope, guardrails and escalation designed first.

03

Build

The agent live on one line or page, measured against the old way.

04

Expand

Coverage grows where the evidence says it should.

Questions we hear a lot

Common questions about the Realtime API

What is the OpenAI Realtime API?

The Realtime API powers speech to speech agents that listen, think and reply at the pace of a normal conversation, either over the phone or inside your own product. The difference from older voice systems is the timing: there is no long pause while it transcribes, thinks and then speaks.

Will callers know it is AI?

Yes, because we tell them. Disclosure is good practice and callers respond well when the agent is fast, useful and honest about what it is.

Can it hand over to a real person?

Immediately, and it should. Escalation paths are part of the design, with context passed along so the caller never repeats themselves.

What about accents and languages?

The models handle a wide range of accents and languages well, and we test against your actual caller base during the pilot rather than assuming.

What does a voice agent cost to run?

Usage based audio pricing, driven by call volume and length. We model it against your current cost per call, which is usually the more confronting number.

What do Australian businesses use voice agents for?

After hours enquiries, booking and rescheduling, order status, triage before a human picks up, and outbound reminders. The good use cases are high volume and repetitive, where the alternative is a caller waiting on hold or leaving a message.

What should a voice agent never do?

Handle a distressed caller, make a decision about someone’s money or care, or pretend to be a person. We design the handover points before we design the conversation, because the exception path is what people judge you on.

How do we stop it saying something wrong?

Narrow scope, approved content and a hard limit on what it will discuss. A voice agent that answers anything will eventually answer something badly, and unlike a chat window there is no chance to read it before it is heard.

Ready when you are

Thinking about voice agents? Let us talk.

A discovery session maps your call flows, your risks and your quick wins. You keep the plan either way.

What to expect

Scroll to Top