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Your phone system can answer with AI if it sells that feature, and both Quo and RingCentral do. Both publish prices. Quo lists Sona tiers, and RingCentral lists AI Receptionist from $49 a month with 100 minutes.
Choosing a tool inside your phone system keeps calls and AI in one place. It can also tie you to that phone system. Everything below was checked against each vendor's documentation on 9 November 2026 and can change.
This article is part of our AI Front Desk guide.
Key Takeaways
- Quo Sona is sold on top of a Quo phone plan and starts with 10 free calls a month.
- Quo says Sona answers inbound calls only and works only inside Quo.
- RingCentral sells AI Receptionist as a standalone or add-on license in the US and Canada.
- RingCentral's pricing page lists AI Receptionist from $49 a month with 100 minutes, then $0.50 a minute.
- Check how each tool books appointments, since the methods differ.
Quo Sona
Sona is the AI voice agent built into Quo, formerly OpenPhone. Quo's Sona page says it answers inbound calls around the clock, takes messages, answers questions and captures leads. It also says "Sona is built to be used in Quo only so you can manage all your phone communication within one platform."
What Sona costs
Quo's pricing page lists phone plans per user. Starter is $19 a month, or $15 billed yearly. Business is $33 or $23, and Scale is $47 or $35.
Sona is priced separately, in credits. The page says "1 Call = 100 credits."
| Tier | Monthly price | Calls included | Overage per call |
|---|---|---|---|
| 1 | $0 | 10 | $1.00 |
| 2 | $25 | 40 | $0.75 |
| 3 | $49 | 100 | $0.65 |
| 4 | $99 | 250 | $0.55 |
| 5 | $199 | 600 | $0.45 |
Sona's page says "You only pay for what you use, and you can cap usage to avoid unexpected charges." The pricing page does not define what counts as one call, so ask before you budget.
What Sona can and can't do
Sona's page says "Sona currently answers only inbound calls." It can transfer callers to a teammate or department.
For booking, the Sona page describes sending a scheduling link by text during the call. Neither Sona's page nor Quo's virtual receptionist page says Sona writes directly to a calendar. Ask Quo how booking works for your setup.
Language support needs a check too. The Sona page's visible FAQ lists English, Spanish and French, while its structured data lists only English. Quo also says Sona cannot detect or switch languages mid-call.
Quo's pricing page lists CRM integrations by plan. HubSpot, Salesforce, Clio, Jobber and HousecallPro are on Business and Scale, not Starter.
RingCentral AI Receptionist
RingCentral's AI Receptionist page describes a virtual front desk that answers inbound calls around the clock. It says "Calls can be routed by names, departments, locations, keywords, or conversation context."
The page says the product can book and reschedule appointments by connecting to your calendar system. It names Google and Outlook calendars, plus Salesforce, HubSpot and Zoho for lead capture.
A broader set of real-time integrations carries a "Coming soon" note on the same page. Ask which connections work today.
On availability, the page says it is sold as a standalone or add-on license for new and existing customers in the US and Canada. It is an add-on in the UK, Australia and the EU. RingCentral's pricing page lists the standalone product from $49 a month, or $39 plus a $30 RingEX Core plan, each with 100 minutes. Extra minutes are $0.50, billed in 30-second increments.
A third option: CallRail Voice Assist
Call tracking tools sit near this category. CallRail's pricing page says Voice Assist "Starts at $95/month." A footnote says all plans include Lead Tracking starting at an additional $55.
The same page states two allowances, 50 and 55 calls over 15 seconds, before a $1 per-call charge applies. Confirm which allowance applies to your plan.
Quick comparison
| Question | Quo Sona | RingCentral AI Receptionist |
|---|---|---|
| Published price | Yes, from $0 for 10 calls | Yes, from $49 a month for 100 minutes |
| Requires its own phone system | Built for use in Quo only | Standalone or add-on license |
| Booking method stated | Texts a scheduling link | Connects to your calendar system |
| CRM named | HubSpot, Salesforce and others on higher plans | Salesforce, HubSpot, Zoho |
How to decide
Stay inside your phone system if you already pay for it and your calls fit its limits. Our AI receptionist pricing guide lists separate tools to compare it against.
Look outside it if you need outbound calling or a booking flow the phone system cannot do. Run a test call before you move any live number.
Next step
Write down what you need the AI to do on a call, then ask your phone vendor to confirm each item in writing. If you need custom connections, see our AI and CRM development service.
Frequently asked questions
Does Quo Sona cost extra?
Each Quo plan includes 10 Sona calls a month, according to Quo. More calls cost $25 to $199 a month, as of 9 November 2026. Quo phone plans are priced separately.
Can Sona book appointments directly?
Quo's pages describe sending a scheduling link during a call. They do not say Sona writes directly to a calendar. Ask Quo before you rely on it for live bookings.
How much does RingCentral AI Receptionist cost?
RingCentral's pricing page lists it from $49 a month standalone with 100 minutes, then $0.50 a minute. A bundle with RingEX Core is $39 plus $30 a month.
Can I use Sona without Quo?
Quo's Sona page says it is built to be used in Quo only. If you want AI answering on a different phone system, compare standalone tools.
Does a phone-system AI lock me in?
It can. An add-on tied to one phone system stops being useful if you change providers. Weigh that against the convenience of one bill and one inbox.
