Telephone Answering Service Companies: A Plain-English Guide

A telephone answering service company answers calls for your business when you are busy, closed, or simply cannot pick up. Callers dial your normal number, the call is forwarded to the service, and someone or something answers using your business name and information.

Most services can greet callers, take detailed messages, answer frequently asked questions from a script you approve, and pass the information to you. Some can also book appointments or transfer urgent calls to another number you choose. The exact abilities depend on the company and plan you pick.

It helps to know what these services are not. They are not a full replacement for an in-house receptionist. Government data on receptionist work shows the job includes greeting visitors and handling office tasks beyond the phone, so compare scope rather than assuming a phone service covers everything an employee would do.

• Calls go to your existing number, which you forward to the service
• The service answers in your business name using information you provide
• Common tasks: messages, basic questions, and sometimes appointment booking
• Transfers to you require you to set a destination number and rules in advance
• When the service does not know an answer, it takes a message instead of guessing

There are three broad categories. Human answering services staff phones with real people who follow your script. AI answering services use software that answers with a recorded or synthesized voice and follows rules you set. Hybrid services combine both, often using software first with people handling escalations.

Human services vary in hours and staffing, and fees differ by plan, so do not assume every human service costs more or only works business hours. AI services tend to be available around the clock and charge by minutes used, but they follow your saved information rather than improvising like a person might.

When comparing, ask what happens when the service does not know an answer. A good service of any type takes a message instead of guessing at prices, policies, or appointment times.

• Human services: real people answer; hours and pricing vary by company and plan
• AI services: software answers using your saved business details; often available 24/7
• Hybrid services: software first, with people for escalations
• Ask each company how unknown questions are handled; the safe answer is taking a message

Every answering service depends on call forwarding from your phone carrier. You keep your public number and forward calls to the service's number. The exact steps depend on your provider and product, so identify the exact service name on your bill before following any instructions.

Wireless carriers use star codes dialed from the phone. Verizon mobile uses *72 plus the destination for all calls and *71 for unanswered calls, with *73 to turn forwarding off. T-Mobile uses codes like **21*1 plus the destination for unconditional forwarding. These must be done from the phone while in coverage, and forwarding applies to calls, not texts.

Business landline and hosted products often use portals instead. Spectrum Business Voice manages forwarding through SpectrumBusiness.net under Voice Settings or Forwarding Manager, where you choose all calls or busy/no-answer. Comcast Business manages features through My Account or the Comcast Business App, and features depend on what you subscribe to. Vonage Business Communications lets you enable forwarding to a phone number from its Call Forwarding settings.

Some products differ even within one carrier. AT&T Collaborate, AT&T Phone for Business, and AT&T wireless each use different codes. The same is true across Frontier, Optimum, Windstream, and Astound products. When in doubt, call your provider and confirm the feature for your exact plan. One important limit: Google Voice explicitly does not support forwarding calls from a Google Voice number to an automated system, so confirm options with the provider before signing up with any 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; ##004# resets to defaults
• Spectrum Business Voice: manage forwarding in the online portal, choosing all calls or busy/no-answer
• Comcast Business: features managed in My Account or the app, depending on your subscription
• Vonage Business Communications: enable Call Forwarding to a phone number in settings
• Google Voice to an automated answering system is unsupported by Google

Answering service companies differ most in four areas: who answers, when they answer, what they can do, and what it costs. Get clear answers on each before you commit.

Ask whether calls are answered by people, software, or both, and during which hours. Ask exactly what the service does with a call: message taking, transfers, appointment booking, or something else. For transfers, ask what destination and rules you must configure, and understand that neither pickup nor an immediate response is guaranteed once a call is sent to you.

On cost, pricing models vary widely. Some companies charge per call, others per minute, and included allowances differ. One human virtual receptionist company advertises plans starting at $245 per month as of October 2026, but a starting price alone is not a full comparison; you need the included allowance, overage rates, hours, and contract terms from a current quote. AI services like AllDayDesk price by plan with included minutes and a per-minute rate beyond them, with plans shown separately on this site.

Finally, ask how appointments are handled. Some services book into their own calendar, some connect to a calendar you already use. AllDayDesk, for example, books into its built-in dashboard calendar by default, with an optional Google Calendar connection you authorize in Settings after setup.

• Who answers: people, software, or a mix
• Hours: business hours, extended, or around the clock
• Actions: messages, transfers, appointment booking, and their limits
• Pricing: per call or per minute, included allowance, overage rate, contract terms
• Calendars: where bookings land and whether your existing calendar connects
• Unknown answers: the service should take a message, not guess

AllDayDesk is an AI answering service, which puts it in the software category described above. It answers calls around the clock using business information you save, so callers hear answers based on your details rather than a generic script.

Setup works in a few steps: you choose your business or enter its website, check the details it pulled together, hear a personalized sample call, and then choose how to connect your phone. The sample is a demonstration only and creates no real booking. You keep your public number by forwarding calls, using the forwarding instructions for your carrier.

Once running, you see calls, transcripts, summaries, and bookings in the dashboard. New appointments go to the built-in AllDayDesk calendar by default once you have configured your services and availability, and you can optionally connect Google Calendar in Settings. Changes to existing appointments come to you as requests, not confirmed changes, so you stay in control of your schedule.

As with any service, there are honest limits. Transfers require you to configure a destination and rules, and neither pickup nor an immediate response is guaranteed. When the service does not know an answer, a price, or an appointment time, it takes a message.

• Answers around the clock using your saved business information
• Setup: choose your business, verify details, hear a sample, connect your phone
• Dashboard shows calls, transcripts, summaries, and bookings
• Built-in calendar by default; optional Google Calendar connection in Settings
• Existing appointment changes arrive as requests for you to approve