AiMatch

Synthflow

Synthflow lets enterprise operations and engineering teams build and deploy AI voice agents for phone workflows. Agents can handle routine calls, connect to business systems, and escalate conversations to human teams.

One of 88 tools in Voice & Speech

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Who it's for

  • Contact center and BPO teams handling high call volumes that want to automate tier-1 support, overflow, or after-hours calls.
  • Healthcare operations teams that need phone-based appointment scheduling, patient support, or call routing.
  • Sales and customer operations teams connecting call workflows to CRMs to qualify leads, book demos, or update records.

How it fits your workflow

Teams build an agent in the visual Flow Designer, define call logic and handoff rules, and connect APIs or business systems. They can start from an industry template or create custom flows.

Agents are tested in the Test Center using simulated calls, then launched through Synthflow’s telephony infrastructure or connected to existing carriers and SIP trunks.

After launch, teams can monitor calls, webhooks, and APIs. Agents can complete tasks such as routing calls or updating records, and escalate conversations to human staff when configured.

Pricing

Free: You can start and build AI agents for free using Synthflow’s library of industry templates and the Flow Designer; charges apply when you launch and use calls/chats on PAYG.

Pay-As-You-Go (PAYG)

Pay for actual calls and chats conducted; no specific per-minute or tier pricing listed on the page.

  • · Start building for free with templates
  • · Pay only for launched/production calls and chats

Prices checked on Jul 15, 2026 from the vendor's site. They can change; confirm before you buy.

Key features

Visual Flow Designer
A visual builder for defining step-by-step voice AI flows, connecting APIs, and composing modular subflows so agents follow defined business logic.
BELL Framework (Build, Evaluate, Launch, Learn)
A repeatable lifecycle framework built into the platform to design agents, automatically test them, deploy via Synthflow’s telephony, and continuously improve using Auto-QA and monitoring.
In-house Telephony & Carrier Integration
Synthflow runs its own enterprise-grade communications infrastructure with sub-100 ms latency and carrier-grade reliability while also integrating with existing SIP/PBX and third-party carriers.
AI Sandbox & Test Center
Tools to preview, compare, version, and automatically simulate calls to measure accuracy, response quality, and compliance before production deployment.
Real-time Monitoring & Auto-QA
Live visibility into calls, webhooks and APIs with monitoring and Auto-QA that analyze conversations and feed insights back into agent improvements.
Data Fine-Tuning
Use historical calls and conversational data to fine-tune models for improved accuracy and behavior.

Works with

  • CRMs & CCaaS (e.g., Cisco, Avaya, Genesys, RingCentral)
  • HubSpot, Zapier, Google Cloud
  • Freshworks (Freshcaller, Freshdesk, Freshservice)

Limitations to know

  • The page does not specify pay-as-you-go rates.
  • Data fine-tuning using past calls is described as a future capability rather than a currently available feature.

Alternatives to consider

  • TalkForce AI

    Choose it if your main need is routine customer-service calls, bookings, cancellations, and outbound calls with human handoff.

  • Autocalls.ai

    Choose it if you specifically need the stated support for WhatsApp, 100+ languages, or international phone numbers.

  • SigmaMind AI

    Choose it if your call-center focus is outbound campaigns such as lead generation or debt collection using existing dialers and CCaaS stacks.

Compare Synthflow side by side

Getting started

  1. Start building an agent for free with an industry template or create a custom agent.
  2. Configure the call flow, voicemail detection, and integrations.
  3. Test the agent in the Test Center before launching.
  4. Launch using the pay-as-you-go model for calls and chats.

Frequently asked questions

What is Synthflow?

Synthflow is a full-stack Voice AI platform engineered for enterprise phone automation, enabling deployment of AI voice agents across inbound and outbound call flows with features like voicemail detection, contextual routing, multi-language support and deep integrations.

Does Synthflow offer a free trial?

Yes — you can start and build an AI agent for free using the library of industry templates or build your own; charges apply when you launch agents under a Pay-As-You-Go model and start conducting calls and chats.

Is Synthflow secure and compliant?

Yes — Synthflow states it uses end-to-end encryption and meets compliance standards including SOC 2, HIPAA, PCI DSS and GDPR, and offers region-based hosting and audit logs.

Can Synthflow integrate with our current tools?

Yes — Synthflow connects to CRMs, ERPs and platforms like Google Cloud, Zapier and HubSpot, and integrates with telephony and SIP-based providers to operate within existing workflows.

What happens if the AI gets stuck or says something off-brand?

You control agent tone and fallback responses, define escalation and handoff rules to humans, and tune behavior; agents can ask clarifying questions, offer alternate responses, or escalate based on failed attempts or sentiment.