12 Min
Synthflow is for enterprise. Central is for your business.
Stop paying for infrastructure you don't need. Start answering calls today.
Never miss another call.
You need a front desk, not a platform.
Synthflow is built for enterprise voice operations: multinational BPO operators, global SaaS platforms, and call centers running hundreds of thousands of calls per month. If you run a dental practice, a law firm, or a home services company, it was not built for you.
Central connects to your phone line, reads your website, and starts answering calls. No building. No configuring. You just go live.
No flow builder
No sales call,
No commitment required.
Not built for your business.
Before a single call is answered, Synthflow's BELL framework requires you to design voice flows, run simulations, and deploy through telephony integrations. That process exists for enterprise teams. For a service business that needs its phones covered this week, it is a barrier. The pricing compounds it: no flat monthly plan, billed per second at $0.15 to $0.24 per minute all-in. When something goes wrong, PAYG accounts get a ticketing queue.
What this means in practice:
Voice flows must be designed and simulated before your first call is answered
Human transfer only happens if you configured a transfer rule. No automatic fallback.
At 200 calls per month you could spend $90 to $144, with no ceiling
Synthflow's own case studies feature a BPO handling 600,000 calls per month
Paste your URL. Answer calls today.
Paste your URL, connect your calendar, set your preferences. Central handles the rest. No flows. No simulations. No sales call.
Every call that comes in becomes an outcome delivered.
What this means in practice:
Inquiries answered, callers qualified, leads logged automatically
Appointments confirmed during the call, calendar checked in real time
Human transfer triggers automatically, no configuration required
Post-call summaries ready after every conversation
Fixed monthly cost before the month starts, regardless of call length
What each product actually does
Feature
Built for service SMBs
Primary buyer
Setup
Time to first live call
Pricing model
Fixed monthly cost
Human fallback
Go live without flow design
Appointment booking
Self-serve signup
Support for small accounts
CRM integration
HIPAA-capable
Multilingual
Synthflow AI
—
Enterprise, BPO, multinational CX
BELL framework: design, simulate, deploy
Days
PAYG ($0.15 to $0.24/min, no flat plan)
—
Requires configured transfer rules
—
Build step required
PAYG only; Enterprise requires sales call
Ticketing only
HubSpot, Salesforce, GoHighLevel, Zapier
Yes (Enterprise certification suite)
Yes (50+ languages)
Central
✓
Local operators, service businesses
Paste URL, connect calendar, go live
Same day
Flat monthly tiers ($79/$149/$299)
✓
✓ Built in, automatic
✓
✓ Native
✓ All tiers
✓ Included
✓ Native
✓ Enterprise
✓ 30+ languages
Five minutes. No flow builder.
Connect your URL and calendar. Central reads your site, trains on your content, and starts answering calls. No flows to design, no sales call needed, no build phase. Most businesses are live the same day they sign up.
Don't take our word for it
"I spent two weeks trying to get Synthflow working. The billing was impossible to predict. I switched to Central on a Friday. By Monday it was answering calls, booking appointments, and sending summaries. I wish I'd started there."
Charlotte Walker
Founder, Bright Dental Studio
"I spent two weeks trying to get Synthflow working. The billing was impossible to predict. I switched to Central on a Friday. By Monday it was answering calls, booking appointments, and sending summaries. I wish I'd started there."
Charlotte Walker
Founder, Bright Dental Studio
"I spent two weeks trying to get Synthflow working. The billing was impossible to predict. I switched to Central on a Friday. By Monday it was answering calls, booking appointments, and sending summaries. I wish I'd started there."
Charlotte Walker
Founder, Bright Dental Studio