How to Stop Hitting Claude Usage Limits
Hitting the Claude usage limit is almost always a context problem, not a plan problem. Learn what actually gets...
Read MoreDeploy production-grade voice AI agents that handle complex conversations with human-like understanding. From 24/7 multilingual customer service and lead nurturing to payment reminders and interview coaching. Built on Vapi, Twilio and Retell. Integrated with your CRM, ticketing system, and business workflows.
Projects Delivered
Onboarding
Workflow Automation
On Upwork
Our Trusted Clients
An AI voice service for business is a production-grade AI system that handles inbound and outbound phone interactions with human-like understanding. It replaces traditional IVR menus with intelligent, conversational voice agents that listen, understand intent, respond naturally, and complete real business tasks.
Unlike scripted voice bots, modern voice AI agents use large language models, natural language understanding, and real-time speech processing to handle complex multi-intent conversations. They connect directly with your CRM, ticketing system and business workflows, enabling automated resolution, seamless human handoff, and continuous performance monitoring.
At Quantal AI, we design, build and deploy custom voice AI agents tailored to your industry, language and tone. Our voice AI development is backed by our full-stack AI engineering services covering everything from architecture and integrations to deployment and ongoing optimization. We use Vapi, Twilio, and Retell as our core voice infrastructure, selecting the right platform based on latency, language requirements, and cost.
Our voice AI agents go beyond scripted responses. They handle complex multi-intent calls, detect sentiment and escalate to human agents when needed, passing full conversation context so nothing gets lost in the handoff.
Every voice AI deployment connects with your CRM, ticketing platform, calendar and business workflows. Voice AI works within your existing operations rather than alongside them as a disconnected tool.
We design for the languages and accents your callers actually use. We support 50 plus languages including Indic, MENA, LATAM and English variants with real code-switching capability built in from the start.
Built on Vapi, Twilio and Retell with low-latency real-time speech processing, sentiment detection and enterprise-grade reliability for high-volume deployments that need to perform consistently every day.
Handle high-volume inbound calls without adding headcount. Voice AI agents resolve routine queries, route complex cases, and operate around the clock at a fraction of the cost of a human support team. Businesses that deploy ai voice services for businesses consistently reduce their cost per interaction while improving first-call resolution rates.
Automated outbound lead nurturing calls reach prospects immediately after they enquire. Each call qualifies the lead through natural conversation, follows up at the right time and books meetings directly into your sales calendar. Your team receives warm, qualified prospects instead of spending hours on manual outreach.
Tone-appropriate payment reminder calls with automated payment plan options reduce days' sales outstanding without straining customer relationships. Every call stays within regulatory boundaries and outcomes are documented automatically, so your collections process runs without requiring constant human oversight.
Handle call volume spikes during peak periods, product launches or seasonal campaigns without hiring temporary staff or compromising response quality. Voice AI agents scale up or down based on demand, maintaining consistent call quality and response times regardless of volume.
Automated lead scoring, personalized follow-up sequences, calendar booking, and analytics. Quantal AI builds voice AI agents that reach out to leads at the right time, qualify them through natural conversation and book meetings directly into your calendar. Every interaction is logged, scored and fed back into your CRM, so your sales team always knows where each lead stands.
Tone-appropriate reminders, payment plan negotiation, compliance with collection regulations. Our payment reminder voice agents handle outbound calls with the right tone for each situation. They can present payment plan options, answer basic queries, and document outcomes automatically. Our agents document every call outcome automatically and feed results back into your system, giving your team full visibility without manually tracking each interaction
Industry-specific questions, real-time feedback on pace and clarity, personalized recommendations. We build voice AI coaching agents that simulate real interview conditions. Candidates receive industry-specific questions, real-time feedback on their pace, clarity and delivery, and personalized recommendations they can act on immediately. Sessions are recorded and reviewed, so progress is tracked over time.
NLU in 50+ languages, real-time sentiment detection, integration with existing CRM and ticketing. Our multilingual customer service agents handle inbound calls around the clock in over 50 languages. They detect sentiment in real time and escalate to a human agent with full context when the situation requires it. Every interaction syncs with your CRM and ticketing system, so resolution data is always where your team needs it.
Outbound sales call automation, real-time objection handling, lead qualification and CRM updates. We build outbound sales voice agents that prospect, qualify and book meetings at scale. Each agent handles objections naturally, updates your CRM in real time and books confirmed meetings directly into your sales team calendar. Your team focuses on closing while the voice agent handles the top of the funnel.
End-to-end design, development and deployment of custom voice AI agents built on Vapi, Twilio or Retell and integrated with your specific business systems, workflows and compliance requirements. When your use case does not fit a standard template, we build from scratch. Our ai engineers scope the full conversation architecture, select the right voice platform, build the integrations, and deploy a production-ready agent designed entirely around your business needs.
We build on Vapi, Twilio and Retell, selecting the right platform based on latency, language requirements and cost. Your voice AI agents perform reliably at scale from day one without the instability that comes from building on the wrong infrastructure.
When our voice agents detect frustration, an out-of-scope query or a high-value request, they transfer to a live agent with full conversation context. The handoff arrives as a Slack, Salesforce or Zendesk notification, so your human team is ready before they pick up.
We design for the languages and accents your callers actually use, not just the standard demo languages. We support Indic, MENA, LATAM and English variants with real code-switching built into the conversation logic.
Every voice AI deployment connects with your existing CRM, ticketing system, calendar and business workflows. Voice AI becomes part of your operations, not a separate tool your team has to work around.
Most deployments are live in 4 to 8 weeks. Simple use cases like payment reminders can launch in 2 weeks. Complex multi-intent agents take 8 to 12 weeks including full QA and a supervised launch period.
After launch we continue monitoring agent performance, refining conversation flows, updating integrations and optimising for accuracy. Your voice AI keeps improving over time rather than degrading as your business evolves.
We begin with a deep-dive scoping session to understand your call flows, caller personas, business objectives and existing systems. We map every conversation your voice AI agent needs to handle and define clear success metrics before a single line of code is written.
Our engineers design the complete voice AI system. This covers LLM selection, voice platform choice between Vapi, Twilio and Retell, NLU configuration, integration points and sentiment detection logic. You receive a full technical blueprint before development begins.
We develop your voice AI agent through agile sprints with regular demos. Conversation flows are refined, edge cases are tested and response quality is improved based on real call scenarios and your direct feedback throughout the build.
Every voice AI agent undergoes rigorous testing across accents, languages, conversation intents and edge cases. We validate accuracy, latency, sentiment detection and integration reliability before any go-live decision is made.
Once validated we deploy your voice AI agent, configure monitoring and alerts and provide complete technical documentation. Post-launch we continue optimising conversation flows, updating integrations and improving performance as your call data grows.
Whether you need an ai voice service for business covering customer service, lead nurturing or payment reminders, our team can scope, build and deploy a production-ready solution integrated with your existing systems.
Co-Founder · CMU Alumni
Co-Founder · Columbia, Ex UBS
Hitting the Claude usage limit is almost always a context problem, not a plan problem. Learn what actually gets...
Read More
In today's fast-paced digital landscape, staying ahead requires innovation and adaptability. This blog explores the...
Read More
AI and machine learning are now part of many business systems. But building an AI model is only one part of the work....
Read More
AI is no longer limited to research teams. Businesses now use AI to automate workflows, analyze documents, support...
Read More
AI is now used in many business systems. Companies use it for customer support, document processing, forecasting,...
Read More
Artificial intelligence (AI) has moved beyond experimentation. Businesses across industries are integrating AI into...
Read More
Artificial intelligence (AI) is reshaping how businesses build products, automate operations, and serve customers. From...
Read More
Artificial intelligence has moved beyond answering questions and generating content. Businesses are now exploring...
Read MoreFind answers to some of the most common questions about our Voice AI solutions and implementation process.
Whether you are deploying your first voice AI agent or scaling an existing system, our team can help you build a production-ready ai voice service for business integrated with your operations and optimised for your callers.
Or email us directly at contact@quantaltech.ai or call +1 315 809 3225.