AI Voice Agent Vendors

Quo Sona (formerly OpenPhone)

AI receptionists

Sona is the AI phone agent built into Quo, the small-business cloud phone system formerly called OpenPhone. Added as a step in a Quo call flow, it answers inbound calls, responds from a knowledge base the business provides, takes messages, qualifies leads, texts booking links and transfers callers to staff. Paid Quo plans include about 10 Sona calls a month, and larger monthly call bundles are sold as an add-on.

Visit Quo Sona (formerly OpenPhone)Pricing page

Charges by
Per call
Starts at
$19/mo (Quo Starter seat, billed monthly (includes about 10 Sona calls))
Includes
About 10 Sona calls a month with any paid Quo plan (1,000 automation credits; 100 credits per call). Paid Sona tiers add more: Tier 2, $25/month, about 40 calls
Overage
Optional and off by default: $1.00 per call on Tier 1, falling to $0.45 per call on Tier 5
How it works
AI only
Free trial
7-day Quo free trial (Quo's Sona help article says the trial includes unlimited Sona calls); paid Sona tiers cannot be bought during the trial
Checked
October 15, 2026

Quo Sona (formerly OpenPhone) pricing

PlanPriceIncludes
Tier 1$0/mo1,000 credits (about 10 calls); overage $1.00 per call
Tier 2$25/mo4,000 credits (about 40 calls); overage $0.75 per call
Tier 3$49/mo10,000 credits (about 100 calls); overage $0.65 per call
Tier 4$99/mo25,000 credits (about 250 calls); overage $0.55 per call
Tier 5$199/mo60,000 credits (about 600 calls); overage $0.45 per call
  • Contract: Sona tiers are billed monthly on top of the Quo subscription; credits refresh monthly, including on annual Quo plans
  • Sona requires a paid Quo phone plan. Quo's pricing page lists Starter at $19/user/month ($15 billed annually), Business at $33 ($23 annually) and Scale at $47 ($35 annually). Each plan includes 1,000 automation credits; one Sona call uses 100 credits and calls under 15 seconds are not counted. With overages off (the default), Sona stops answering when credits run out and calls follow the call flow's fallback path. Unused credits expire at the end of each billing period. Buying a paid tier requires online (Stripe) billing, not an Apple subscription, and Admin or Owner rights. Quo's blog says there are no onboarding fees.

What it does

Answers inbound calls
Yes
Places outbound calls
Unconfirmed
Books appointments
Unconfirmed
Warm transfer to a person
Unconfirmed
Text follow-up
Yes
Call recording
Yes
Transcripts
Yes
CRM sync
Yes
Keep your number (porting)
Yes
Spanish
Yes
Other languages
Yes
Web chat
Unconfirmed
API
Unconfirmed
Custom voice
No

Quo's Sona setup guide says language support is in beta: English is the default, and Spanish and French can be enabled. Sona reads the greeting exactly as written (it is not translated), and call summaries are always in English.

Integrations

As listed by Quo Sona (formerly OpenPhone). Integrations not listed may still be possible through an API or Zapier.

Security and compliance

Signs a HIPAA BAA
Unconfirmed
SOC 2
SOC 2 Type II
Discloses it's an AI
Unconfirmed

Quo signs a Business Associate Agreement on its Business and Scale plans. Its HIPAA article does not name Sona, and says the customer 'assumes full responsibility for any PHI processed through AI-powered features', listing conditions for using them. Whether Sona calls are covered by the BAA is not stated.

“Unconfirmed” means Quo Sona (formerly OpenPhone)'s public pages don't say either way. Rules for AI phone calls

Company

Built for
Small business

Sources

  1. Quo pricing pricing. Accessed October 15, 2026
  2. Quo Help: Sona pricing pricing. Accessed October 15, 2026
  3. Quo Help: Sona AI agent pricing, features. Accessed October 15, 2026
  4. Quo Help: Setting up Sona features. Accessed October 15, 2026
  5. Quo Help: Sona actions (send SMS, transfer, create Jobber request) features, integrations. Accessed October 15, 2026
  6. Quo Help: Sona job guide features. Accessed October 15, 2026
  7. Quo Help: Sona for lead capture (SMS, beta) features. Accessed October 15, 2026
  8. Quo Help: HIPAA compliance compliance. Accessed October 15, 2026
  9. Quo Help: SOC 2 compliance compliance. Accessed October 15, 2026
  10. Quo Help Center documentation index (porting guides) features. Accessed October 15, 2026
  11. Quo blog: Voice AI pricing pricing, company. Accessed October 15, 2026

Spot something out of date? Email contact@aivoiceagentvendors.com with a link to the vendor's page.

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