AI voice agent add-on to business phone

Quo Sona (formerly OpenPhone)

https://www.quo.com/sona · HTTP check: 200

Warm transfer

yes

Can transfer to teammates/departments.

Booking

partial

Can send scheduling links mid-call; not confirmed as direct calendar write on Sona page.

Partner / affiliate

https://www.quo.com/partners

Pricing as published

1,000 free automation credits (~10 calls) on every Quo plan. Paid tiers: $0 / $25 / $49 / $99 / $199 per month for 10 / 40 / 100 / 250 / 600 calls. Overage $1.00 down to $0.45/call. Requires paid Quo phone plan.

Source: https://www.quo.com/sona

Best-fit verticals

SMBs already on Quo/OpenPhone, teams wanting phone + AI in one app

Key integrations

Quo phone system only (not other phone systems), Salesforce/HubSpot require higher Quo seat plans per third-party notes — confirm on Quo pricing

Notes

Sona is Quo-only; not a standalone answering service.