Visual call flow editors
for phone and chatbot systems

Transform your configuration forms into intuitive visual diagrams. Custom-built flow editors that integrate seamlessly into your CPaaS platform, contact center software, or VoIP infrastructure. Preserve your business logic, enhance user experience. 

Telecom customer service
Call flow diagram
Communication flow builder
Visual messaging flow builder
CPaaS / CCaaS
IVR (Interactive Voice Response)
Call flow builder with nodes for verification, GDPR info, API calls, and customer support.

Outcomes that matter

Ship
faster
Ship faster

From sketch to publish in hours, not weeks. Visual authoring accelerates delivery across regions and channels.

Reduce errors

On-canvas validation, version history and rollback cut misroutes and configuration mistakes before they hit production.

Go omnichannel

Unify call management and messaging: IVR, voice & chat, WhatsApp / RCS, SMS, and email in one studio. 

Two paths, same expertise

Path 1

Workflow Builder

For teams who want to adapt their system to proven patterns

  • Pre-built diagramming platform ready to customize
  • All core features included - focus on your business logic
  • AI Node connects machine learning models and data pipelines into cohesive, automated workflows
  • 2-4 week integration timeline
  • Self-service customization capabilities

Path 2

Custom Development

For complex systems requiring case specific integration

  • Built around your existing APIs and data models
  • Industry-specific components and workflows
  • 8-16 week development timeline
  • White-label and complete source ownership

Not sure which path?

Our 30-minute technical audit will map your requirements to the optimal approach.

Core capabilities that drive results

Zoomable canvas, groups and subflows

Navigate large call-flow diagrams with a mini-map, grouped logic, and reusable subflows.

  • Mini-map and zoom for big flows 
  • Grouping and collapsible subflows 
  • Quick search and highlights 
Call routing diagram with announcements, queues, agents, and group nodes.

Versioning and rollback

Experiment freely. Compare diffs between versions,publish behind gates, and restore safely.

  • Version history and diffs 
  • Publish gates and approvals 
  • Safe rollback 
Workflow editor with version history panel showing different saved flow versions.

Omnichannel orchestration

Design journeys that flow naturally across voice, chat, and messaging channels.

  • Voice → SMS → Email handoff flows 
  • WhatsApp/RCS rich media components 
  • Opt-in/opt-out compliance tracking 
  • Channel preference management 
Flow diagram routing customer inquiries via phone, video, chatbot, or social media.

IVR, conditions and time/call routing

Branch by skills, business hours, regions and customer attributes.

  • Conditional logic with variables 
  • Time/call routing, announcements, queues 
  • Skill based, manual routing and agent distribution 
  • DTMF input handling and validation 
  • Business hours / holiday routing logic 
  • Skills-based agent distribution 
  • Queue overflow and escalation paths 
Call flow diagram with IVR customer service block connected to numbers and users.

Integrations and data actions

Call HTTP/webhooks, CRM/ticketing, and external services.

  • API/webhook actions 
  • CRM/ITSM connectivity 
  • Custom node types 
Workflow editor showing trigger, email, HTTP request, webhook, and logic nodes.

Security and collaboration

Create together with confidence

  • RBAC (view / edit / admin) 
  • Read-only and audit trail 
  • Real-time collaboration and commenting 
  • Drill-down subflows for complex conversations 
  • Export to your preferred formats 
Export screen showing IVR workflow with option to save as PDF.

Synergy Codes is at the top of the charts regarding timeliness, accuracy, completeness, and budget compliance.

Profile image of Robert Scott, CTO & Co-Founder of EON Collectiv wearing red shirt and black jacket.
Robert Scott
CTO & Co-Founder, EON Collectiv

Synergy Codes experts are unparalleled in creating visual collaborative apps, making them the top choice in the market. Their knowledge, professionalism, and how they leverage the Yjs library left me really impressed.

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Kevin Jahs
CEO, Yjs

Proven success in visual flows for conversational systems

Modeling call flow diagram for better customer service

Look at how we simplified a call flow with a simple flow diagram that leads a user through a conversation step by step. Check out this solution for processes improvement in contact center.

Case Study

Chatbot architecture design and development

Reinforce conversational platform design and empower it with machine learning algorithms for improving users experience.

Partner with experts, not tools

Technology excellence and domain knowledge

13+ years of diagramming experience

delivering scalable solutions across multiple technologies and frameworks

Solution-based partnership

guiding digital product transformation for diagram-based user interfaces, as a trusted business ally

Deep understanding

understanding both business and technical needs proven across the most demanding industries and complex product ecosystems

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Tech agnostic

React Flow, GoJS, Angular expertise and beyond

Complex edge cases

Performance-tested with 10K+ nodes 

Domain knowledge

IVR, CPaaS, chatbot experience

FAQ

  • What is a call flow diagram?

    A call flow diagram is a visual representation of the sequence of steps and interactions involved in a telephone or communication system. It illustrates the path of a call or communication from the initiation to its completion, including the various decision points and possible outcomes.

  • What are the steps in a call flow?

    The steps in a call flow typically include call initiation, call routing, call processing, call transfer or forwarding (if applicable), call termination, and post-call actions or follow-up procedures.

  • When should I choose Workflow Builder vs. custom development?

    Pick Workflow Builder when you’re starting with your solution or want proven patterns quickly and a short integration. Choose custom when you need deeper integrations, special components, or strict governance.  

    Not sure? Our 30-minute consultation will point you to the safer bet.

  • Can non-technical teams build flows safely?

    Yes. We set guardrails and a clear review path. Your authors see and edit the logic on a canvas, while admins approve changes before they go live. It’s fast for creators and safe for production.

  • Can we import/export flows as JSON and integrate with our CRM?

    Yes. You can import/export as JSON and connect to your CRM, helpdesk, or internal services. We match your API shape, so flows travel cleanly from dev to staging to production.

  • How do you handle performance for very large diagrams?

    Flows are organized into groups and subflows, so teams can jump between sections with search and filters instead of dragging through everything. Before go-live we size the editor to your real workloads and tune auto-layout and caching, so performance holds up as your library grows.

Bring your users a tailored experience with a custom flow editor

Contact us to discuss your project.

We’ll get back to you within 48 hours.

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