A Quo AI receptionist through call forwarding
A Quo number, formerly OpenPhone, forwards its calls to a Cartesia agent's number, so the agent answers as your Quo AI receptionist and hands callers back.
Front-line agent
Answers forwarded calls and passes the rest to your team.
Instructions
Answer rent due dates, payment options and office hours. Transfer active leaks and other emergencies to the on-call tech, and lease questions to the property manager's Quo number.
- Handoff
- Quo team number
Connected tools
- Transfer to QuoTransfer
What a Quo AI voice agent can do
Open one to watch a call. The grey lines are the tools the agent calls mid-sentence.
A Forward all calls call flow sends every call to a Quo number on to the agent's number, with the caller's own number intact.
The agent answers what tenants ask most, such as rent due dates and office hours, and ends the call without a transfer.
Tenants who need a person go to another Quo number in your workspace, such as a property manager's line.
Quo settings
These are the call flow settings for forwarding one Quo number.
- Where
- Settings, Workspace, Phone numbers, the number, Call flow, Edit call flow. Web and desktop.
- Call flow
- Forward all calls, from the Default call flow dropdown, then Enable this call flow.
- Destination
- A US or Canadian number. International numbers aren't supported.
- Caller ID
- Forwarded calls keep the original caller's number.
Set it up
A phone hand-off by call forwarding. There is no SIP trunk between Quo and Cartesia and no native Quo integration. Vendor details read in November 2026.
Give the agent a number
Import a number from Twilio or connect a SIP trunk number. Transfers work only on Twilio and SIP trunk numbers, not on Cartesia numbers.
Forward the Quo number
In Settings, under Workspace, click Phone numbers, pick the number and click Edit call flow. Choose Forward all calls from the Default call flow dropdown, enter the agent's number, click Create new call flow, then Enable this call flow.
Set the way back
Add a transfer rule in Cartesia to another Quo number in your workspace, not the number that forwards to the agent.
Test both directions
Call the Quo number, check the Live indicator, reach the agent, and ask for a person to check the transfer back.
Before you build
Forwarded calls count twice
Each forwarded call uses two call legs, and Quo counts both toward your usage. Check your plan's calling allowance before forwarding a busy number.
Quo doesn't record forwarded calls
Quo can't record or transcribe calls forwarded to an external number, and unanswered ones don't go to Quo voicemail. Quo logs them as incoming and transferred.
After hours needs a different flow
Forward all calls can't hold other steps. To forward only after hours, build a flow with a Business hours step and forward in the after-hours branch.
Transfers are cold
The person who picks up gets the call, not the conversation. Have the agent tell the caller where it's sending them before it transfers.
Use cases for teams on Quo
More integrations
Enterprise-grade security
HIPAA compliant
SOC 2 Type 2
GDPR
Quo AI voice agent FAQs
Does Quo have an AI receptionist?
Yes. Sona is Quo's AI agent, sold as a paid add-on. It answers when you're unavailable, answers common questions from your knowledge base, records caller details and transfers to a person. To use a Cartesia agent instead, forward a Quo number to the agent's phone number. Quo has no built-in Cartesia connection.
Does this work with OpenPhone?
Yes. OpenPhone is now Quo, and the call flow builder is the one OpenPhone had. The steps on this page are the current Quo ones.
Can I use my own AI agent with Quo?
Yes, if the agent has a US or Canadian number. Quo's Forward all calls flow sends callers there, keeping the original caller's number, and the agent transfers back to another Quo number in your workspace. A Cartesia agent calls webhook tools you define in your own systems and uses the voice and model you choose.
How do I forward Quo calls to an AI agent?
In Settings, under Workspace, click Phone numbers, pick the number and click Edit call flow. Choose Forward all calls from the Default call flow dropdown, enter the agent's number, click Create new call flow, then Enable this call flow. Quo doesn't forward to international numbers.
Can I forward only after-hours Quo calls?
Yes, with a different flow. Forward all calls can't hold other steps, so build a flow with a Business hours step and forward to the agent in the after-hours branch.
Who bills the minutes when Quo forwards to an agent?
Each forwarded call uses two call legs, and Quo counts both toward your usage. Cartesia charges $0.03/min, plus LLM usage and telephony, and Twilio or your SIP carrier bills the agent's number. Quo can't record or transcribe forwarded calls.
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