AI phone answering for your business

24 Hour Answering Service Companies

24 hour answering service companies handle your business phone calls day and night, including evenings, weekends, and holidays, so callers reach someone even when you are off the clock. There are two main kinds: human answering services, where trained people answer in your company's name, and AI answering services, where software answers using information you provide about your business. Both types usually work the same way at the start: you forward your existing business number to the service, so you keep your number and callers never see a new one. When comparing companies, look past the 24/7 label and check what actually happens on a call: Can the service answer questions about your prices and services? Can it book appointments? Can it take a detailed message and show it to you? What happens when a caller needs you urgently? AllDayDesk is an AI answering service on this site that answers calls around the clock using your saved business information. You set it up by choosing your business or entering its website, checking the details it found, hearing a personalized sample call, and then choosing how to forward your phone. Calls, transcripts, summaries, and bookings show up in your dashboard. This page explains how these companies work, what to compare, and how to connect one to your phone.

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How it works

Set up your business receptionist

Add your business

Choose your business or enter its website. Check the services, hours, and details callers need.

Hear your receptionist

Listen to a sample for your business and check its answers. The sample does not create a real booking.

Connect your phone

Follow the steps for your phone service. Set up booking availability and any call transfers you want to use.

Review calls, messages, and bookings in your dashboard.

How 24 hour answering services actually work

A 24 hour answering service does not replace your phone number. You keep the number you already advertise, and you forward incoming calls to the service. When someone calls your business, the service answers instead of your line ringing unanswered or going to voicemail.

Human services route your calls to trained agents who answer using your business name and follow instructions you give them. AI services like AllDayDesk answer with software that has been given your business details, such as your services, prices, and hours. When a caller asks something the service does not know, like a price that is not saved or a question about a specific appointment, it takes a message for you instead of guessing.

Either way, you should be able to see what happened on each call. AllDayDesk shows calls, transcripts, summaries, and any bookings in your dashboard, so you can review overnight activity in the morning.

You keep your existing business number; forwarding happens behind the scenes
Human services use trained agents; AI services use software trained on your business info
Unknown answers become messages for the owner, not guesses
AllDayDesk logs calls, transcripts, summaries, and bookings in one dashboard

For a broader explanation of how virtual reception services differ from an in-office hire, read this guide. what is a virtual receptionist

Human answering services vs AI answering services

When you compare 24 hour answering service companies, the biggest decision is usually human agents, AI, or a mix. Human services, like AnswerConnect's 24/7 live answering or Ruby's virtual receptionists, put a person on every call. Ruby advertises plans starting at $245 per month as of October 2026, and Smith.ai uses per-call pricing for its human receptionist service. Those starting prices are not the whole picture; you need each company's current quote, included minutes or calls, overage rates, and contract terms to compare fairly.

AI services answer with software instead of people, which usually changes the pricing shape: AllDayDesk plans are built around included monthly minutes with a per-minute rate for extra time. An AI service can answer questions from your saved business information and book appointments, but it is not a person, and it will take a message rather than improvise when it does not know an answer.

Neither type is automatically better. A solo contractor who mostly needs overnight messages may weigh cost differently than a firm that wants a human voice on every call. Compare documented features and current quotes rather than assuming one category always wins.

Human services: real people answer; Ruby lists plans starting at $245/month (Oct 2026), Smith.ai prices per call
AI services: software answers from your saved business details; AllDayDesk uses monthly minute plans
Starting prices exclude overages, included allowances, and contract terms, so always get the full quote
Compare what happens on a real call, not just the 24/7 label

Sources: Ruby live virtual receptionists · Smith.ai virtual receptionist pricing · AnswerConnect business answering service · Smith.ai AI receptionist pricing

For a side-by-side look at the tradeoffs between software and human coverage, see this comparison. AI receptionist vs human receptionist
To understand how pricing structures differ across providers, read the cost guide. answering service cost

What to compare before you pick a company

Every company in this category advertises round-the-clock availability, so the label alone does not help you choose. These questions separate the real differences:

Ask each company what the service does on a typical call. Can it answer questions about your services and prices? Can it book appointments, and if so, into what calendar? Can it transfer a call to you, and what are the rules? What exactly does a caller hear when the answer is unknown?

Then ask how you stay in the loop. You want to see every call with a transcript and a summary, not just a list of missed numbers. AllDayDesk shows calls, transcripts, summaries, and bookings in the dashboard, and new appointments go on the built-in calendar once you have set up your services and availability. An optional Google Calendar connection is available in Settings after you connect and authorize your Google account.

Finally, ask about limits. Availability around the clock is not a promise that every single call connects, and transfers depend on the destination and rules you configure. Get specifics in writing before you sign up.

What can the service answer on its own, and when does it take a message?
Can it book appointments, and into which calendar?
Can it transfer calls to you, and under what rules?
How do you review calls: transcripts, summaries, bookings?
What are the included minutes or calls, and the overage rate?

For a decision framework aimed at small teams, read the small business guide. best answering service for small business
If booking appointments over the phone matters most, see how AI booking works. AI appointment booking

Connecting a service to your phone

Whichever company you choose, the connection step is the same idea: you tell your phone carrier to send incoming calls to the service's number. The exact steps depend on your carrier and product, and they differ between mobile lines, business landlines, and hosted phone systems.

With AllDayDesk, you keep your public number and forward calls to it; the instructions depend on your phone service. For example, Verizon mobile uses *72 plus the destination for all-call forwarding and *71 for unanswered calls, while T-Mobile uses **21*1 plus the destination for unconditional forwarding. Business systems vary more: AT&T Phone for Business uses *72 for all calls and *92 for no-answer forwarding, and Spectrum Business Voice manages forwarding through its online portal instead of star codes. Always confirm the steps for your exact product, because codes differ even within the same carrier's lineup.

One important limit: Google Voice does not support forwarding calls from a Google Voice number to an automated system, so a Google Voice number is not a workable path to an AI answering service.

Verizon mobile: *72 plus destination for all calls, *71 for unanswered, *73 to disable
T-Mobile: **21*1 plus destination and # for unconditional, ##21# to disable
AT&T Phone for Business: *72 all calls, *92 no answer, *90 busy
Spectrum Business Voice: managed in the online portal, not with star codes
Google Voice numbers cannot be forwarded to an automated answering system

Sources: Verizon mobile call forwarding · T-Mobile short codes · AT&T Phone for Business call forwarding · Spectrum Business Voice user guide · Google Voice linked phone setup

For forwarding steps across many carriers and phone systems, read the business forwarding guide. business phone forwarding
If you only want unanswered calls forwarded, see the Verizon conditional forwarding guide. Verizon conditional call forwarding

How AllDayDesk fits in

AllDayDesk is this site's own AI answering service, available around the clock. Setup starts by choosing your business or entering its website, then checking the business details it found. You hear a personalized sample of how it would answer for your company before you commit to anything, and the sample does not create a real booking.

After the sample, you choose your phone setup and forward your existing number using the instructions for your carrier. Once you have configured your services and availability, new appointments made by callers go on the built-in AllDayDesk dashboard calendar by default, with an optional Google Calendar connection available in Settings. Changes to existing appointments come to you as requests to approve, not confirmed changes.

Transfers to you are possible once you configure a destination and rules for when they happen. When a caller asks something the service does not know, it takes a message so you can follow up.

Set up by choosing your business or entering its website, then check the details
Hear a personalized sample before choosing phone setup; samples create no real bookings
Calls, transcripts, summaries, and bookings appear in the dashboard
Built-in calendar by default; optional Google Calendar connection in Settings
Appointment changes are requests for you to approve, not automatic changes

For more on how continuous coverage works day and night, see the 24/7 service page. 24 7 answering service
For a step-by-step walkthrough of the whole setup process, read the setup guide. how to set up a call answering service

Pricing

Choose a plan that fits your calls.

Solo $99/moBusiness $199/moGrowth $349/mo

Each plan includes call minutes. Extra minutes cost more. See your estimate before you start. Your first 30 calls are free, with no credit card. Paid plans are monthly; cancel anytime.

Hear the receptionist for your own business

Enter your business or its website, check the details, and listen to a personalized sample of how AllDayDesk would answer your calls around the clock. The sample creates no real booking, so you can try it with no commitment.