AI Voice Agents for Inbound and Outbound Calls

AI Voice Agents that answer, qualify and book over the phone

Inbound support, outbound calls and appointment scheduling handled by an AI agent on Twilio, with a person ready to take over when the call needs one.

Every missed call is a lead you already paid for

Calls come in after hours, at lunch, or while your team is on another line. Most callers don't leave a voicemail: they call the next company on the list. And outbound follow-up, the calls that actually close, is the first thing that slips when the team is busy.

A voice agent picks up every call on the first ring, at any hour. It understands what the caller needs, answers from your own information, books the appointment in your calendar, and passes the call to a person with the full context when it should.

What a voice agent takes off your team

Inbound support and reception

Answers on the first ring, 24/7, resolves the frequent questions from your own knowledge base and routes the rest to the right person.

Outbound calls

Calls new form leads back within minutes, runs follow-up and reminder campaigns, and logs every outcome in your CRM.

Appointment scheduling

Checks real availability and books, moves or cancels appointments in Google Calendar or Outlook during the call.

Handoff to a person

When the caller asks for someone or the conversation goes off script, the call transfers with a summary, so nobody has to start over.

How it works

Map the calls

We pick the call flows worth automating first: the most frequent, the most repetitive, or the ones you lose today. That defines what the agent must know and what it must never do.

Build and connect

I build the agent on Twilio Voice with an LLM and a natural voice (ElevenLabs, Cartesia), and connect it to your calendar, CRM and phone numbers. You test it on a real number before launch.

Launch and tune

We start with part of the traffic, review recordings and transcripts, and adjust prompts, latency and handoff rules on real calls before scaling up.

Work already running in production

AI Voice · UAE telecom

AI voice calls into the UAE, wired into an app that was already live.

AI Boost had a NextJS app and an in-house telecom engineer, and needed AI-driven voice calls to UAE numbers running through Twilio without breaking what was already there. I worked alongside their telecom and frontend teams to get it in cleanly and troubleshoot the edge cases as they came up.

Proof this holds across borders and drops into systems that already exist, not just greenfield builds.

"His deep experience was evident. Proactive, collaborative, and instrumental in troubleshooting. Highly recommended." -- Sanjana Bandara, CEO, AI Boost LLC

Twilio Flex · Contact center

An agency hired me to build the Twilio Flex contact center one of their clients was counting on.

The setup was a mess. Agents had no history on incoming calls, so they had no idea who they were talking to. Unanswered calls just vanished and nobody got called back. And the same contact would open three or four duplicate tasks at once. None of that scales, and the agency's client was feeling it.

I rebuilt it into a real omnichannel contact center inside Flex. Custom plugin so the agent sees every past call and message the second a new one lands. Smart routing through Studio and Functions: if nobody answers in 20 seconds, the call drops into an automated voicemail flow instead of disappearing. TaskRouter logic so one contact never opens more than one active task. Even a custom ringtone so agents don't miss calls when the browser tab isn't focused.

What changed:

✓100% of missed calls captured (they used to just disappear)
✓Conversations resolved 30 to 40% faster, with full context on screen
✓Zero duplicate tasks, even in the bursty hours

"Gonzalo was truly exceptional. He went above and beyond to get things done. We boosted customer satisfaction by 45%." -- Jesse Fowler, CEO, OSC Web Design

Read the case study →

Frequently asked questions

Current voice models sound close to a person. What matters most is latency: the agent has to reply in about a second, so I design the whole pipeline (speech-to-text, LLM, text-to-speech) around it. You hear it on a test number before anything goes live.

It transfers the call to a person, or takes a message and creates a callback task. The handoff carries a summary of the conversation, so your team doesn't ask the caller to repeat everything.

Yes. Numbers can be ported to Twilio or forwarded to it, and the agent can sit in front of your current call center or behind your IVR.

Most voice agents go live in 2 to 4 weeks. Custom integrations with your CRM or scheduling system can add time; we scope it on the first call.

Twilio covers most countries, and I've shipped AI voice calls into the UAE alongside a client's telecom team. The agent can speak English, Spanish and the other languages the voice models support.