Voice AI · Custom AI Voice Agent Development
AI Voice Agents for Inbound and Outbound Calls
An AI voice agent is software that holds a natural phone conversation, looks things up in your systems and takes action while the caller is still on the line. Aaga designs, builds and runs custom voice agents for inbound and outbound calls, in English and Indian languages, connected to your telephony, CRM and calendar.
- Answer inbound calls instantly, including nights, weekends and peak hours
- Call new leads, confirm bookings and send reminders without adding headcount
- Hand callers to a person with a full summary whenever a human should decide
- Get every call transcribed, tagged and logged in your CRM
- Calls answered, every day of the year
- 24/7
- Start with one call type, then scale
- Pilot first
- Reply to your inquiry within one business day
- 1 day
What Can an AI Voice Agent Do for Your Business?
Each voice agent is built around one job your phone lines do every day. Most teams start with a single call type and add more once it proves itself.
Inbound AI Receptionist
Picks up on the first ring, answers questions from your knowledge base, takes messages and routes urgent calls to the right person.
Outbound Calling Agent
Calls new leads within moments of a form fill, runs reminder and renewal campaigns, and confirms orders or deliveries at scale.
Booking and Scheduling
Books, moves and cancels appointments in your calendar or practice software, then sends an SMS or WhatsApp confirmation.
Customer Support Line
Resolves order status, account and policy questions, creates tickets in your helpdesk and escalates the rest with context.
Multilingual Calls
Speaks English, Hindi and other Indian languages, Arabic and major European languages, and can switch when the caller does.
After-Hours and Overflow
Takes calls when your team is busy or offline, so peak hours and holidays stop turning into missed revenue.
How We Engineer Production-Ready Voice Agents
A good demo is easy. A voice agent your customers trust needs solid telephony, fast responses, safe behavior and clean data. This is what we build in.
Telephony and SIP
Works with your existing number through call forwarding or SIP trunking, cloud telephony providers or a new local or toll-free number.
Low-Latency Voice Pipeline
Streaming speech recognition, a fast language model and natural speech synthesis, tuned so replies feel conversational and callers can interrupt.
CRM and Calendar Integration
Reads and writes to your CRM, calendar, helpdesk, ERP or practice software through APIs, so every call ends with the right record updated.
Guardrails and Compliance
Approved topics, scripted disclosures, consent capture and PII handling, with rules for what the agent must never say or promise.
Human Handoff
Warm transfer to your team with a spoken or on-screen summary, triggered by the caller, by keywords or by low confidence.
Call Analytics
Recordings, transcripts, outcomes and tags in one dashboard, so you can see containment, drop-offs and what callers ask most.
From First Call Flow to Full Rollout
Free Consultation
A 30-minute call with our engineers to map your calls, systems and goals, and pick the first use case.
Call Flow Design
We script the conversation, define what the agent can do and when it hands off, and agree success metrics.
Pilot Build
We build the agent on your real FAQs and data, connect it to your phone line and systems, and test it internally.
Live Pilot
The agent takes a share of real calls. We review transcripts daily and tune voice, latency and answers.
Scale and Improve
Roll out to more calls, languages and use cases, with ongoing monitoring and monthly improvements.
Voice AI Built by an AI-Native Team
Large IT services firms are set up for multi-year transformation programs. A voice agent works best when it starts small and improves weekly.
| Aaga | Typical large IT services model | |
|---|---|---|
| Who builds your agent | Senior engineers you talk to directly | A delivery team behind account and project managers |
| Starting point | Free consultation, then one call type as a pilot | Discovery phase and a broad statement of work |
| Technology stack | Best-fit telephony, speech and LLM providers for your calls | Often shaped by preferred partner platforms |
| Iteration speed | Transcript reviews and tuning every week | Change requests through program governance |
| Cost | Scoped to the call flows you automate | Priced for enterprise-scale programs |
Comparison describes typical delivery models, not any specific company.
What Is an AI Voice Agent?
An AI voice agent is a phone-based AI assistant that listens, understands and responds in natural speech, and can act on what the caller asks. Unlike a recorded menu or a simple voice bot, it can answer open questions, look up an order, book a slot or update your CRM during the call.
For a business, that means calls get answered the moment they come in, routine requests are resolved without waiting for an agent, and your team spends its time on the conversations that really need a person. For a deeper introduction, read our guide what is a voice AI agent.
How Does an AI Voice Agent Work?
Every call runs through a real-time pipeline. Aaga builds and tunes each stage for your use case:
- Telephony. The call arrives over your phone system, a cloud telephony provider or a SIP trunk, and audio streams to the agent.
- Speech recognition. Streaming speech-to-text turns the caller's words into text as they speak, including accents and code-mixed speech such as Hinglish.
- Reasoning and tools. A large language model decides what to say next. When it needs data or must take an action, it calls tools: your CRM, calendar, order system or knowledge base.
- Speech synthesis. Text-to-speech replies in a natural voice that matches your brand and language.
- Logging and handoff. The transcript, outcome and any follow-up tasks are saved, and the call is transferred to a person when needed.
The difference between a frustrating bot and a good voice agent is mostly latency and turn-taking. We stream every stage, keep prompts and tool calls lean, and handle barge-in, so callers can interrupt naturally without long silences.
Inbound vs Outbound Voice Agents
Inbound voice agents answer calls your customers make: reception, booking, support, order status and after-hours cover. The goal is no missed calls and faster resolution.
Outbound voice agents make calls on your behalf: lead follow-up, appointment reminders, payment and renewal reminders, delivery confirmations and feedback surveys. The goal is reaching more people, sooner, with consistent quality. Outbound campaigns need extra care with consent, calling hours and do-not-call rules, which we build into the design.
Many businesses run both on one platform, sharing the same knowledge base, integrations and analytics.
Voice AI for India and Multilingual Markets
Callers in India often switch between English and Hindi, Tamil, Telugu, Kannada, Marathi, Bengali or other languages mid-sentence. Aaga builds voice agents that handle multilingual and code-mixed conversations, using speech models chosen and tested for your languages. The same approach works for English, Arabic and major European languages, for businesses in the US, Europe and the Middle East.
Which Systems Can a Voice Agent Connect To?
A voice agent is only as useful as the actions it can take. Aaga connects agents to the tools you already run, through their APIs or through our own integration layer:
- CRMs: Salesforce, HubSpot, Zoho CRM and custom CRMs
- Calendars and booking: Google Calendar, Microsoft 365, Calendly and practice-management software
- Helpdesks: Zendesk, Freshdesk and similar ticketing tools
- Commerce and ERP: Shopify, WooCommerce, order databases and ERP systems
- Messaging: SMS and WhatsApp for confirmations, links and follow-ups after the call
If a system has no API, we look at alternatives such as database access, webhooks or a small middleware service.
What Makes a Voice Agent Production-Ready?
A voice agent is ready for real customers when it meets five tests:
- It is fast. Responses feel like a normal conversation, not a walkie-talkie.
- It is grounded. It answers from your approved information, not guesses.
- It knows its limits. It hands off cleanly, with context, when a human should decide.
- It is connected. Each call updates the systems your team already uses.
- It is measurable. You can see outcomes, transcripts and trends, and improve week by week.
Voice is one channel. If you also want text-based automation, see our AI chatbot development and WhatsApp Business services, or custom AI agent development for agents that work across your back-office systems.
Start With a Free Voice AI Consultation
The fastest way to see whether a voice agent fits your business is a short conversation with an engineer. In a free Voice AI consultation, we review your call types and volumes, recommend the first use case, check your phone system and integrations, and outline a pilot plan with a budget range. If voice AI isn't the right fit, we'll say so.
Frequently Asked Questions
An IVR makes callers press keys or say fixed phrases to move through a menu. An AI voice agent understands free-form speech, answers questions in its own words and completes tasks such as booking or updating a record. Callers just say what they need.
Yes. We usually connect through call forwarding or SIP trunking from your current phone system or cloud telephony provider, so your number stays the same. We can also set up a new local or toll-free number if you prefer to start separately.
Yes. We build voice agents in English, Hindi and other Indian languages, and in languages such as Arabic and major European languages. Quality varies by language and accent, so we test with real sample calls in your languages before going live.
The agent answers only from your approved knowledge base and systems, follows written rules for topics it must avoid, and hands off when it is unsure. We test it against a set of real and tricky calls before launch, and review transcripts after launch to catch problems early.
It transfers the call to your team, or takes a message and creates a callback task when nobody is available. The person who picks up gets a short summary of the conversation, so the caller doesn't have to repeat themselves.
Yes, for lead follow-up, reminders, confirmations, renewals and surveys. We design outbound campaigns around consent and local calling rules, such as calling hours and do-not-call lists, and the agent identifies itself as an AI assistant.
A focused pilot for one call type typically takes a few weeks, depending on integrations and languages. More complex agents with several call flows and back-end systems take longer. We give you a timeline after the free consultation.
There is a one-time build cost for design, integration and testing, plus running costs for telephony, speech and language-model usage, which scale with call minutes. We share a budget range for your pilot after we understand your call volumes.
Put an AI Voice Agent on Your Phone Lines
Start with a free consultation. We'll pick the first call type, plan the integrations and show you what a pilot takes.
Get My Voice Agent Plan