On every call
Calls picked up, nights and weekends included
99.8%
Source: Clio Legal Trends Report 2024, Secret-shopper calls to 500 US law firms
Seconds until a caller is talking to someone who can help
0.6sec
Source: ContactBabel, 2026 US Contact Center Decision-Makers' Guide, 207 US contact centers
Calls resolved on the first call
91%
Source: ContactBabel, 2026 US Contact Center Decision-Makers' Guide, 207 US contact centers
Appointment booking accuracy
99.6%
Checked against your calendar on every booking. No other AI receptionist publishes this number.
Callers served or transferred to your team
99.7%
Served means answered, booked, or a full message taken for you. At answering services and call centers, 7.3% of callers hang up waiting.
Source: ContactBabel, 2026 US Contact Center Decision-Makers' Guide, 207 US contact centers
Accuracy and how it sounds
Caller details saved correctly
98.9%
Callback number, email, address and name, each checked against the call.
Answers that came from your business info
99.5%
Every answer about your business is checked against what you gave us.
Callers who rated their call good
94%
One-tap rating sent by text after the call.
Listeners who picked out the AI in a blind test
52%
50% means listeners can’t tell it apart from a person.
How we get these numbers
Continuous, rigorous testing of every part of the call, from the first ring to the summary in your inbox.
Our own call system
We built and run the system that answers your calls. There is no phone menu and no hold queue, so the receptionist picks up on the first ring and starts helping right away.
The newest AI models
Calls run on the newest models from the leading AI labs. Every new model is tested on real call situations before it reaches your line.
Test calls every day
Test calls go out from outside phone lines every day. The greeting, every reply, the booking and the transfer are timed and checked, the way a caller hears them.
Every call checked after it ends
Bookings are compared with your calendar, caller details with caller ID, and answers with your business info. When something is off, we find out why and fix it for every line.
Uptime
99.99%
call answering uptime, 90 days
Every incident and every part of NextPhone is on the status page.
How we measure each number
- Calls picked up, nights and weekends included99.8%
Share of calls to every NextPhone line that the receptionist answered, nights, weekends and holidays included. A call counts as missed if it rang and nobody answered.
Compared with: law firms called by a secret shopper, 40% (Clio Legal Trends Report 2024, Secret-shopper calls to 500 US law firms).
- Seconds until a caller is talking to someone who can help0.6s
Median time from the first ring to the receptionist starting to talk. There is no phone menu and no hold queue: the receptionist who answers can answer questions, book and transfer.
Compared with: answering service and call center average, 74s (ContactBabel, 2026 US Contact Center Decision-Makers' Guide, 207 US contact centers).
- Time to reply, measured from the caller's side of the call1.3s
Median gap between the caller finishing a sentence and the receptionist starting to reply, timed on recordings of daily test calls placed from an outside phone line.
- Calls resolved on the first call91%
A call counts as resolved unless the same caller calls the same line again within 7 days about the same thing. The two call summaries are compared to decide if it was the same thing.
Compared with: answering service and call center average, 70% (ContactBabel, 2026 US Contact Center Decision-Makers' Guide, 207 US contact centers).
- Appointment booking accuracy99.6%
For every booking, the date, time, service and caller details agreed on the call are compared with the event written to your calendar. Any difference counts against this number.
- Callers served or transferred to your team99.7%
A caller counts as served when they got the answer or booking they called for, or the receptionist took a full message and sent it to you. When a caller asks for a person, the receptionist transfers them to your team. A call counts against this number only if the caller hung up with none of these.
- Caller details saved correctly98.9%
Each field is checked against something true: the callback number against caller ID, the email against the spelled-out readback and whether its domain accepts mail, the address against a map, and the name against the call transcript. Every month a person checks 100 random calls against the recordings.
- Answers that came from your business info99.5%
Every answer the receptionist gives about your business (hours, prices, services, policies) is checked against your website, documents and settings. An answer that is not backed by them counts against this number.
- Callers who rated their call good94%
After the call, callers get a text asking them to rate it with one tap. This is the share who answered good or great.
- Listeners who picked out the AI in a blind test52%
Every quarter, a listening panel hears clips of real calls mixed with clips of human receptionists, without knowing which is which, and guesses which are AI. Listeners are recruited by a research panel, never customers or staff.
Outside sources
- Clio Legal Trends Report 2024, Secret-shopper calls to 500 US law firms
- ContactBabel, 2026 US Contact Center Decision-Makers' Guide, 207 US contact centers
Questions about a number? Email support@getnextphone.com.