Customer Service

Synthflow AI

AI voice agents that handle real phone calls for customer service, lead qualification, and appointment booking.

synthflow.ai

Verified Works with Zapier

Quick facts
What is it	AI voice agents that handle real phone calls for customer service, lead qualification, and appointment booking.
Pricing	Paid
Free tier	Yes
Platform	Web Application
Works with	Zapier
Best for	qualifying sales leads, booking appointments
Domain registered	2023

Data updated Aug. 1, 2026

What does Synthflow AI do?

Synthflow AI is an enterprise-ready voice AI platform that handles inbound and outbound phone calls. It builds AI agents that can qualify leads, book appointments, provide customer support, and more — all through natural-sounding voice conversations. The platform comes with its own telephony infrastructure, so you don’t need to patch together separate phone and AI systems. Instead, you get a single dashboard to design, test, and deploy voice agents that sound human and follow your business logic.

You build agents using a visual flow designer. You define the agent’s personality, greeting, discovery questions, qualification rules, and fallback handling — all in a drag-and-drop interface or by writing a natural language prompt. The agents pull context from a knowledge base you upload (company info, product details, FAQs) and can perform actions like booking a calendar slot, updating a CRM, or sending a follow-up email. Before going live, you can run test calls to hear how the agent handles real conversations, adjust the flow, and iterate. The platform comes with pre-built templates for common use cases like real estate lead qualification, restaurant reservations, and healthcare reception.

Synthflow AI works best for enterprises and mid-size businesses that handle high volumes of phone calls. Real estate teams can use it to qualify buyer leads 24/7, e-commerce companies can automate order inquiries and booking, and healthcare providers can offload appointment scheduling. The built-in telephony means fewer integration headaches, and the platform promises ROI within weeks. If your team spends significant time on repetitive phone interactions, this is a practical way to free up human agents for higher-value work.

AI Sales Assistant Cold Calling Customer Service

#ai voice agent#automated phone calls#call center automation#crm integration#customer support automation#inbound calls#lead qualification#no-code ai#outbound calls#telephony#voice ai

Key features

What makes it stand out

End-to-end voice AI platform with built-in telephony (no third-party VoIP required)

Visual Flow Designer for building custom conversation logic and call workflows

Knowledge Base integration to train agents on specific company information and FAQs

Actions capability to integrate with external systems like calendars and CRMs

Extensive testing environment to simulate and refine calls before deployment

Who is Synthflow AI for?

Who benefits most from this tool

qualifying sales leads

booking appointments

handling customer inquiries

Pricing

Free tier available — start without a credit card

Pay As You Go

Custom

0.01 sms per msg
1.5 phone number
0.04 gpt 5 per min
0.05 gpt 4 1 per min
0.04 gpt 5 1 per min
0.04 gpt 5 2 per min
0.005 facebook per msg
0.01 whatsapp per msg
0.002 API widget per msg
0 byo twilio per min
0.002 simulation per run
0.02 gpt 4 1 mini per min
0.09 voice engine per min
0.02 synthflow twilio per min
20 extra concurrency per call
0.04 global low latency per min
0.04 performance routing per min
Free to start, then usage-based
Telephony: Synthflow Twilio / Bring Your Own Telephony
5 concurrent calls, then $20/reserved concurrency
Compliance (SOC2, GDPR, ISO 27001)
Unlimited Agents, API & Integrations
Support via Ticketing

Enterprise

Custom

10,000 minimum minutes per month
Guaranteed Uptime & SLA 99.99%
SIP Trunking, Synthflow Native Telephony
White Label & Reseller Toolkit
Unlimited Concurrent Calls & Custom Workflows
API Rate Limits: Custom + Priority
Advanced Compliance: MSA support, geo-based sub-processing, on-premise multi-region deployment, flexible hosting options
Enterprise Onboarding, Training, and Support

Trust & presence

Domain Domain registered 2023

Gallery

Click any image to enlarge

Synthflow AI — pricing page — Pricing page

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