We Will Build, Install, & Manage An AI-Powered Phone System For Your Business, That Guarantees Qualified Sales Calls & Could Increase Your Revenue By Up To 391% In Less Than 30 Days.

Without hiring more employees, disrupting your current operations, or needing to do any sort of technical setup or pay an agency.

Integrates with

AI-powered inbound & outbound

AI-powered inbound & outbound

Answer every call instantly. Book appointments, qualify leads, and close sales without hiring extra reps.

Run across every channel

Run across every channel

Phone, CRM, SMS. Synthesys integrates with the tools you already use to unify your communications.

Never miss revenue

Never miss revenue

Day or night, every customer gets answered. Synthesys works 24/7 to capture revenue and deliver support automatically.

Real outbound at massive scale

Real outbound at massive scale

Launch thousands of personalized prospecting calls every day. Reach more decision-makers and close more deals without adding a single extra person.

Support and sell worldwide

Support and sell worldwide

Run sales and support calls in any language, 24/7. Expand into new markets overnight with AI that scales as fast as your ambitions.

Manage every conversation in one place

Manage every conversation in one place

Track inbound, outbound, sales, and support calls with a single dashboard. Monitor performance, view transcripts, and stay in control in real time.

Stay connected on the go

Stay connected on the go

Get instant alerts when leads are qualified, meetings are booked, or revenue is closed. Manage everything from your pocket with the Synthesys mobile view.

Fully Customizable

Fully customizable to your brand and systems

Knowledge Base

Agents that deeply understand your business, powered by your knowledge base

Connect internal documents, FAQs, and URLs in just a few clicks. With built-in Retrieval-Augmented Generation (RAG), agents provide accurate, real-time answers grounded in your own content, automatically reindexed as it changes.

Custom Voice Clones

Create unique brand voices and personalities for your agents

Pick from a wide range of expressive voices or clone your own for full control. Adjust tone, pacing, and language to suit different roles, regions, or customer types. Each agent can switch voices mid-conversation when needed.

Integration with your stack

Seamless integration with your existing tools and workflows

Connect agents to your internal tools and APIs to perform real tasks during a conversation. Fetch account data, trigger workflows, send updates, or log events in your existing systems, all in real time.

Integrations for everything

Integrations for everything

Synthesys comes ready to run out of the box. But if your business needs more, our ecosystem of CRM, sales, and support integrations connects you to the tools you already use — with over 95+ apps for whatever specialized features you might need.

Instantly Deployed, Industry-Proven Voice AI Automation

Ready for any industry, from scheduling logistics to handling customer claims and 24/7 support. Our secure, multilingual Voice AI agents integrate directly into your enterprise systems. Synthesys delivers instant, high-quality automation for conversations that consume team time, enabling you to dramatically increase availability and lower operational costs.

Global by default and human at every turn

Support global audiences with automatic language detection, multilingual voice synthesis, and real-time switching powered by advanced turn-taking.

Seamless integration with your existing tools and workflows

Connect to over 200 different apps and softwares from your CRM to appointment schedulers.

Clone voices instantly

Support global audiences with automatic language detection, multilingual voice synthesis, and real-time switching powered by advanced turn-taking.

State of the art Neural TTS

Conversations flow naturally thanks to real-time detection of pauses, overlaps, and speech intent. Agents know when to listen and when to speak, even when users interrupt or hesitate.

"Synthesys allowed us to qualify inbound leads 24/7 and helped us stop wasting time on the phone with people who were unqualified."

Parker Nathans

Founder, Analytic Aim

Synthesys Agents for Outbound

Synthesys Assistants are intelligent, real-time AI assistants that talk, type, and take action. Resolve customer issues, automate tasks, and deliver accurate answers – all grounded in your data, tailored to your workflows, and ready to deploy at scale.

"We increased our premium revenue by a multiple using Synthesys to reach out to old leads that we had sitting in our CRM."

Stephen Storey

Founder, Insurance Company

Grow sales and collections with empathetic AI assistants

Seamlessly launch batch calls

Run large outbound calling campaigns to accelerate revenue and growth without human bottlenecks. Our voicemail detection enables agents to appropriately action follow-ups, while reducing cost per lead.

Automate calls compliantly

Automate redundant outbound calls that authenticate users, negotiate payments, and log outcomes - using approved scripts, tested guardrails, and audit-ready logs to ensure full compliance.

Escalate calls seamlessly

When complexity spikes, Synthesys transfers calls to humans with full context. Conversation history, intent, and account details carry over instantly so customers never repeat themselves.

Telephony Integrations

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Connect to Any Telephony System

Connect internal documents, FAQs, and URLs in just a few clicks. With built-in Retrieval-Augmented Generation (RAG), agents provide accurate, real-time answers grounded in your own content, automatically reindexed as it changes.

Numbers Driving Limitless Growth

Scaling businesses, one conversation at a time.

1M+

CONVERSATIONS/MONTH

AI-powered inbound and outbound calls delivered across industries worldwide.

30%

HIGHER CONVERSIONS

Average increase in closed deals compared to traditional phone reps.

50+

LANGUAGES

Conversations localized instantly, across every major global market.

99.99%

UPTIME

Enterprise-grade uptime so every customer, in every time zone, gets answered.

Over 100 companies globally trust Synthesys

as their AI phone platform

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$2M

in New Incremental

Revenue Generated

"We're closing more deals than ever with Synthesys's outbound calling. It automates personalized follow ups and prospecting, reaching leads we couldn't before. Our sales pipeline has exploded, and it's all hands-free."

Marco Stall

CEO
Parabolic

Marco Stall

CEO
Parabolic

$2M

in New Incremental

Revenue Generated

"We're closing more deals than ever with Synthesys's outbound calling. It automates personalized follow ups and prospecting, reaching leads we couldn't before. Our sales pipeline has exploded, and it's all hands-free."

Lerozier Holt

Founder
Titan Elite Fitness

$750K

Annual Revenue Boost

"I own a personal training business and I use Synthesys to onboard and qualify clients. It saves me an immense amount of time when it comes to getting my clients information, schedules, etc. Ever since implementing Synthesys into my business, I’ve almost tripled my client base."

Harsimran Singh

CEO
CrossTempo

30%

Payroll Costs Reduced

"By automating repetitive tasks with Synthesys, we've cut payroll costs significantly across our sales department. Synthesys now automates the outbound follow up work in a day, that would usually take 6-7 reps to do in months. We were able to cut our sales related payroll costs by 30% in the first three months."

Frequently Asked Questions

What exactly is Synthesys, and what does it do?

Synthesys is an enterprise-level AI telecommunications platform specializing in voice infrastructure, designed to automate inbound and outbound calls. Our voice technology seamlessly engages in real-time, human-like conversations—answering incoming calls, intelligently routing them, scheduling appointments, leaving voicemails, and handling follow-ups via automated SMS and phone. Built to handle multilingual interactions effortlessly, Synthesys integrates smoothly into your existing tech stack.

Do you offer a free trial to test Synthesys?

Yes. Synthesys offers a fully guided, hands-on demo experience where you can test our AI-driven voice solutions. During this trial, you can experience inbound call handling, automated outbound campaigns, real-time appointment booking, voicemail detection, call escalation, and seamless CRM integrations. It’s the best way to evaluate how Synthesys reduces workload and boosts operational efficiency without any upfront commitment.

Does Synthesys replace human employees?

In short, yes. Synthesys was built to replace your team and enhance your top performers’ capabilities. Our intelligent voice automation handles repetitive, high-volume tasks such as qualifying leads, booking appointments, answering FAQs, and managing customer follow-ups. This frees your team to focus on higher-value interactions that require human judgment and empathy. It’s particularly effective after-hours, during scaling phases, and when handling multilingual calls globally.

How secure and compliant is Synthesys?

Synthesys prioritizes security and compliance. Our infrastructure uses advanced encryption and is fully compliant with SOC 2, HIPAA, and GDPR, making it ideal for sensitive sectors such as healthcare, financial services, and telecommunications. Your data remains secure and private, ensuring regulatory compliance at every interaction.

Can I customize Synthesys for my business needs?

Absolutely. Synthesys is built to be highly flexible and fully customizable. Whether you’re setting up sophisticated call routing, automated scheduling, lead qualification, or customer onboarding workflows, Synthesys offers comprehensive 1:1 done-for-you customization tailored to your operational strategy and business goals.

Does Synthesys integrate with our existing systems?

Yes. Synthesys integrates seamlessly with nearly any CRM, ERP, or support system—Salesforce, HubSpot, Zoho, Zendesk, GoHighLevel, and more—via direct webhooks. Maintain your existing workflows while enhancing them with powerful voice automation.

How quickly can we get started with Synthesys?

You can deploy Synthesys within days, not weeks. Our onboarding team handles initial setup and integration, so your support, sales, and operations teams see productivity gains immediately—with minimal IT involvement.

How do I maintain control over my brand’s voice with Synthesys?

Synthesys gives you total control over your brand’s tone, vocabulary, and conversation structure. Our advanced dialogue management lets you define escalation rules and fallback responses, ensuring brand consistency and professional interactions at all times.

What happens if Synthesys doesn’t understand something?

If Synthesys encounters unfamiliar input, it triggers intelligent fallback strategies: asking clarifying questions, suggesting alternatives, or escalating to a human agent based on rules like customer sentiment or repeated recognition failures. This keeps every conversation smooth and professional.

Does Synthesys identify voicemails, spam, and wrong numbers?

Yes—Synthesys includes voicemail detection, spam filtering, and call validation. It automatically skips non-productive contacts (voicemails, disconnected numbers, spam), so your call resources stay focused on revenue-generating conversations.

Do I need technical skills or developers to set up Synthesys?

No. We’re fully done-for-you. Our technical fulfillment team handles all integrations, prompting, and setup. Your non-technical teams simply manage and monitor via our user-friendly dashboard.

Can I use custom or cloned AI voices with Synthesys?

Absolutely. Choose from a library of realistic voices or upload your own for custom voice cloning. Align every interaction with your unique brand tone and style.

How well does Synthesys scale with high call volumes?

Synthesys is built for enterprise-level scale. Whether you process hundreds or tens of thousands of calls per day, our infrastructure delivers real-time, low-latency performance—no additional headcount required.

What exactly is AI voice automation?

AI voice automation leverages ASR, NLU/LLM, dialogue management, and neural TTS to conduct natural, end-to-end voice conversations—automating tasks like inquiry handling, appointment booking, lead qualification, 24/7 support, and outbound campaigns.

Why should I choose Synthesys over other AI voice solutions?

Synthesys leads the market with real-time conversational accuracy, deep customization, enterprise-grade security/compliance, multilingual support, seamless integrations, and proven ROI. It’s the only platform designed for high-stakes, scalable voice infrastructure.

How does Synthesys technology work behind the scenes?

Synthesys combines four key components:

ASR: Converts speech to text, filtering noise for clarity.

NLU & LLM: Interprets intent and extracts context.

Dialogue Management: Decides next actions—answers, routing, escalation.

Neural TTS: Produces natural, human-like speech responses.

Together, they deliver seamless, end-to-end intelligent call management.

Get pricing for the Setup Here

This is ONLY for High-Volume Businesses (Real Estate, Medical, Finance) & Agencies. LEAVE THIS PAGE if you or have no lead flow or don't get phone calls or are making less than $30,000 per month.