AI Voice Assistant Development
We build AI voice assistants that listen, understand and reply in natural speech, on phone lines, in mobile apps or on devices. They can answer questions, take bookings and update your systems, and transfer callers to staff when needed.
Voice brings extra challenges: speed, accents, background noise and interruptions. We combine speech-to-text, a language model and text-to-speech in a low-latency pipeline and test with real callers before going live.
What we offer
- Phone voice agentsInbound and outbound calls through telephony providers.
- In-app voiceVoice control and assistants inside mobile and web apps.
- Multilingual speechSupport for multiple languages and accents.
- System actionsBookings, order lookups and CRM updates during the call.
- Call summariesTranscripts and summaries saved to your CRM.
Common use cases
- After-hours call answering
- Appointment reminders and rescheduling
- Order and delivery status by phone
- Hands-free assistants for field staff
Technology
- Speech-to-text APIs
- Text-to-speech APIs
- Twilio
- OpenAI / Claude / Gemini
- WebRTC
- Node.js
- Python
Business benefits
- Answer calls 24/7without hold times
- Handle routine requestsbookings, order status, FAQs and payments reminders
- Natural conversationsin multiple languages and accents
- Smooth hand-offto a human agent with a summary of the call
Why work with Webtech Evolution
- 10+ years of delivery272+ projects for 118+ clients in 12+ countries since 2014.
- One team, end to enddesign, front end, back end, mobile, QA and DevOps under one roof, so nothing gets lost between vendors.
- Clear estimatesa written scope, timeline and price before work starts, and demos throughout the build.
- You own everythingcode, designs and documentation are handed over in full and covered by an NDA.
- Working hours that overlap with yoursMonday to Friday, 10:00–19:00 IST, with extended hours available for clients in the USA, Canada and New Zealand.
How we deliver
Discovery
agree the goal, users, data and how success will be measured.
Prototype
a working version on real examples within the first weeks.
Build and integrate
connect to your systems, add security, testing and monitoring.
Pilot
launch to a small group, measure results and improve.
Scale and support
roll out widely, with ongoing monitoring and updates.
Need people rather than a project? Hire AI developers.
Frequently asked questions
We recommend telling callers at the start that they are speaking with an AI assistant. It builds trust and is required by law in some places.
Current text-to-speech voices are very natural. Response speed matters as much as voice quality, so we optimise for short delays.
Yes. Calls can be transferred to staff with a summary of the conversation so far.
Yes. We connect to telephony providers such as Twilio and Exotel and to most cloud call-centre platforms.
Yes. Modern speech models handle Hindi, Gujarati, Arabic and many other languages, as well as English with regional accents.
They can be. Transcripts and summaries can be saved to your CRM, subject to your consent and privacy policies.
Let's Talk!
Have a question about AI Voice Assistant Development? Send us a message and our team will reply with next steps.
- Reply within a few hours (Mon–Fri)
- NDA available
- You own the code
Prefer to talk? Call +91-9601965456WhatsApp ushello@webtech-evolution.com
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