Synthflow review

Synthflow has moved fully upmarket. Its pricing page states that every new deployment starts on an annual enterprise agreement, with no free plan, no trial and no per-minute rate, and the contract is scoped to your call volume, phone system, integrations, security needs and launch support. What you get in return is depth in phone systems: built-in connections for Zoom, Five9, RingCentral, 8x8, Twilio, Telnyx, Vonage and Freshcaller, with Genesys and other SIP carriers connected through an enterprise setup. Agents read and write your CRM, help desk and calendar through 200+ integrations, let callers switch language halfway through, and hand over the full transcript on a warm transfer. Synthflow says agents reply in under half a second and that it handles more than 1M calls a day. BPOs can run it under their own brand. Smaller teams should look elsewhere, since there is no way to try it without a sales call.

Who it is for

Contact centers, BPOs and multi-location brands that need agents inside Zoom, Five9 or RingCentral phone systems.

Price

See vendor pricing (USD check pending).

US price check pending. See the vendor pricing page.

Key features

• Built-in connections for Zoom, Five9, RingCentral, 8x8, Twilio, Telnyx, Vonage and Freshcaller
• Reads and updates CRM, help desk and calendar during the call
• Callers can switch language mid-call and ask for a person
• Warm transfers pass the full transcript to your team
• White-label workspaces for BPOs and software platforms

Strengths and weaknesses

• Strength: Works inside the phone system you already run
• Strength: Forward-deployed engineers can build and launch agents
• Strength: Trust Center lists SOC 2 Type 2, ISO 27001 and PCI DSS
• Weakness: No free plan, trial or per-minute rate
• Weakness: Sold only as an annual enterprise agreement
• Weakness: SMS and WhatsApp agents are limited to US workspaces

Key facts

• Call volume: 1M+ calls a day, per the vendor
• Enterprise customers: 100+
• Integrations: 200+

Where it ranks

Synthflow is No. 7 in our Best AI Voice Agents verdict.