What is a phone answering service and how does it work?
A phone answering service picks up your business calls when you can’t, in your business name. Live receptionists, AI software or a mix of both greet callers, answer questions, take messages, book appointments and transfer urgent calls to you. You forward your number to the service and choose which calls it gets: every call, overflow or after-hours.
Prices checked October 9, 2026 on each vendor’s own pricing page, in US dollars before tax. LobbyStack wrote this guide and sells an AI receptionist, so our plan appears as one example and is labeled as ours.
What does a phone answering service do?
A phone answering service does the phone side of a front-desk job from outside your office. It answers before the call would go to voicemail, handles routine calls itself and hands you the rest as a message, a booking or a live transfer. The caller reaches someone who can help, and you stay on the job in front of you.
The usual jobs:
- greeting callers in your business name
- answering approved questions about hours, services, prices and service area
- taking messages with the caller’s name, number and reason for calling
- booking, moving or cancelling appointments, if the service can reach your calendar
- screening out sales pitches and spam
- transferring urgent calls to whoever is on duty
- sending you each message or a call summary by email, text or app
You’ll see other names for the same service: telephone answering service, professional answering service, call answering service and virtual receptionist. Vendors whose software answers the phone call it an AI answering service or an AI receptionist.
What it can’t do
A remote service can’t greet walk-ins or sign for a delivery. It also knows only what you give it. A live operator works from your script, and an AI works from your business information and rules. If your prices change and nobody updates the service, callers hear the old prices.
How does a phone answering service work?
Calls reach the service through call forwarding or a number the service gives you. An operator or an AI answers in your business name and follows your instructions: answer the question, book the appointment, take a message or transfer the call. You then get the result as a message, a summary or a recording, and your phone line stays yours.
1. Calls reach the service
Most businesses keep their number and forward it to the service. You pick which calls the service gets with a forwarding rule at your carrier:
| Forwarding rule at your carrier | Coverage you get |
|---|---|
| Forward every call | Full-time answering |
| Forward when busy or unanswered | Overflow: the service takes the calls your team misses |
| Forward at closing time | After-hours answering |
Or you can publish a new number that the service gives you. See how to forward business calls to set up each rule.
2. The service answers the call
The operator or AI greets the caller with your business name and follows your instructions. A live operator reads a script you approve and uses judgment when a caller goes off it. An AI receptionist answers from your website, documents and FAQs, and follows rules you write in plain language. Either way, the call should end with an outcome: an answer, a booking, a message or a transfer.
3. You get the result
After the call, the service sends you what it collected, most often a message by email, text or app. Some services also keep a summary, a transcript or a recording. A transfer puts the caller through to you during the call. Ask each vendor what the caller hears when nobody picks up.
What are the types of phone answering services?
The five common types are live, AI, hybrid, after-hours and overflow. The first three describe who answers. The last two describe when the service answers, and you can set up a live, AI or hybrid service for either one. So you make two separate choices: who should answer your calls, and which calls they get.
| Type | Who answers | Which calls | Fits |
|---|---|---|---|
| Live answering service | Trained people at an outside company | Whatever you forward | Calls that need judgment or a human voice |
| AI answering service | Voice AI software | Whatever you forward | Booking, routine questions, many calls at once |
| Hybrid | AI first, people for the rest | Whatever you forward | A mix of routine calls and calls that need a person |
| After-hours | Live, AI or hybrid | Nights, weekends and holidays | Businesses that close but still get urgent calls |
| Overflow | Live, AI or hybrid | Calls your team doesn’t pick up | Teams that answer most calls themselves |
Live answering service
Trained people at an outside company answer from a script you approve. Examples include PATLive, Ruby and Smith.ai’s Virtual Front Desk. A trained person reads an upset caller, an odd request or a sensitive subject better than software does. Most live services bill by the minute and some by the call. Ruby and PATLive include Spanish-speaking receptionists at no extra cost.
AI answering service
Voice AI software answers the call, talks with the caller in everyday speech and can book into a connected calendar. It applies your rules the same way on every call and costs a fraction of a live service’s per-minute rate (see the cost table below). It doesn’t read emotion the way a trained person does. Vendors bill per minute, per call or per unique caller.
LobbyStack’s AI phone answering service is ours. It books into Google Calendar, texts a confirmation and a 24-hour reminder to US and Canadian callers who agree, and saves a recording, a transcript and a summary of every call. Calls open in your default language (English, French, Spanish, Serbian, German, Brazilian Portuguese, Italian or Dutch), then the receptionist answers in the caller’s language: 70+ languages on OpenAI GPT-Live. Its limits: Google Calendar is the only calendar, transfers go to one number without a briefing, and the AI doesn’t reply to texts.
Hybrid answering
AI answers first, and people take the calls it shouldn’t handle. Sometimes those people work for the vendor. Moneypenny’s AI plans escalate calls to its human receptionists, and Abby Connect mixes human and AI answering on one plan, where an AI minute uses half an Abby Minute. In other setups the people are your own team, reached by a transfer. LobbyStack works that way.
After-hours answering
The service answers only when you’re closed: nights, weekends and holidays. It suits businesses that get urgent calls after closing, such as a burst pipe or a furnace out in January. Get the covered hours in writing and ask about holiday fees. PATLive and Abby Connect charge nothing extra for nights, weekends or holidays, while AnswerNet adds $10 per holiday on three of its four plans.
Overflow answering
The service takes the calls your team doesn’t pick up, after a set number of rings or when the line is busy. You answer what you can, and callers stop landing in voicemail during a rush or while you’re on a job. You spend plan minutes or calls only on the calls the service takes.
How much does a phone answering service cost?
Live phone answering services cost about $1 to $5 a minute as of October 2026, or about $2 to $10 a call on per-call plans. For 40 three-minute calls a month, live plans ran $127 to $485. AI plans cost less per minute: LobbyStack’s Starter plan covers the same 40 calls for $30, without a person on the line.
The table prices one month of 40 calls at 3 minutes each (120 minutes). The call length is our assumption, so use your own if you know it. Each bill uses the cheapest plan, or plan plus overage, that covers the month, before setup, holiday and telecom fees.
| Type and billing | Example plan, as of October 9, 2026 | 40 calls of 3 minutes |
|---|---|---|
| Live, per minute | AnswerNet Silver: $105 for 100 minutes, then $1.10 a minute | $127 |
| Live, per minute | PATLive: $189 for 100 minutes, then $2.09 a minute | $230.80 |
| Live, per minute | Ruby: $395 for 100 minutes, then $4.50 a minute (help center, checked October 10, 2026) | $485 |
| Live, per call | Smith.ai Virtual Front Desk: $300 for 30 calls, then $11.50 a call | $415 |
| Hybrid, per call | Moneypenny AI: $99 for 50 calls, with human escalation | $99 |
| AI, per call | Upfirst Starter: $24.95 for 30 calls, then $1.50 a call | $39.95 |
| AI, per minute | LobbyStack Starter (ours): $30 for 150 minutes, then $0.20 a minute | $30 |
A per-call bill stays the same whether calls last 2 minutes or 10, while a per-minute bill grows with call length. Setup fees run $0 to $95 among live services that state an amount, and Davinci Virtual charges the $95. LobbyStack has no setup fee on any plan.
Rounding, holiday fees and per-call add-ons also change the bill. For 15 live services’ rate cards, fees and billing increments, read what an answering service costs.
How do you choose a phone answering service?
Start with your own call log before you look at vendors. Find when you miss calls and decide which calls need a person. Then compare services on the billing unit that suits your call length and on what happens after each call. Test your finalists with your hardest calls before you forward your number.
1. Find when you miss calls
Pull a month of your call log: total calls, missed calls and when the missed ones came in. Missed calls during the workday point to overflow answering, and missed calls at night point to after-hours. If you miss calls at both times, you may want full-time answering.
2. Decide which calls need a person
Sort the month into routine calls (booking, hours, prices) and calls that need judgment (complaints, emergencies, sensitive subjects). If most calls are routine, an AI or hybrid service can take them. If most need judgment, pay for live people.
3. Match the billing unit to your call length
Per-call plans suit long calls, and per-minute plans suit short ones. Smith.ai’s Starter works out to $10 a call, and PATLive’s 100-minute plan to $1.89 a minute. Divide $10 by $1.89 and you get about 5.3 minutes: past that average call length, the per-call plan costs less. Also ask how each service rounds a call and whether it bills spam.
4. Check what happens after the call
Ask where messages go and how fast they arrive, what the caller hears when a transfer goes unanswered, and whether you get recordings or transcripts to check the work. A booking made during the call needs nothing more from you. A message means someone still has to call back.
5. Test with your own calls
Use a trial or a free plan to place the calls that worry you most: an emergency, a booking and a caller who speaks another language. PATLive and Upfirst offer 14-day free trials. LobbyStack’s Free plan gives you 30 voice minutes a month and a US or Canadian number free for 14 days, with no card. For named picks, see the best answering services for small business.
Questions about phone answering services
Do telephone answering services still exist?
Yes. PATLive, Ruby, Smith.ai and other live answering companies all listed current plans when we checked on October 9, 2026. The mix has changed. AI answering services now sit beside them, and some vendors, such as Moneypenny and Abby Connect, sell AI and human answering together. Live operators keep the calls that need a person.
Is there a free phone answering service?
A few vendors answer some real calls for free. Smith.ai’s AI Free plan answers 25 real calls a month, then charges $3 a call. LobbyStack’s Free plan gives you 30 voice minutes a month and a US or Canadian number that answers real calls free for 14 days, with no card. See free AI receptionist options.
Can I keep my business number?
Yes. You forward your existing number to the service and pick a forwarding rule at your carrier: every call, overflow or after-hours calls. Some services also take your number over by porting, and PATLive ports numbers in and out for free. With LobbyStack, you forward your number to a LobbyStack number in the US, Canada, the UK, Australia or New Zealand.
What is the difference between an answering service and a call center?
The terms overlap. An answering service answers inbound calls for many small businesses at once: messages, transfers and some booking, billed by the minute or by the call. A call center is a larger operation that handles high volumes of inbound support or outbound sales calls, often with agents trained on one company’s products.
Is a phone answering service the same as a virtual receptionist?
Close enough. Vendors use “virtual receptionist” for a live answering service that does more than take messages, such as booking appointments and transferring calls. Many now use the term for AI software too. Both answer from outside your office, so ask any vendor whether a person or software will pick up your calls, and when.
Test an answering service on your hardest call
Pick the call you’d least want to go wrong, such as an emergency or a confused first-time customer. Place it with every service on your shortlist before you forward your number, and read what each one sends you afterward.
If an AI or hybrid setup fits, you can run that test on LobbyStack today. The Free plan gives you 30 voice minutes a month and a US or Canadian number free for 14 days, with no card. When the calls sound right, Starter costs $30 a month for 150 minutes, then $0.20 a minute, and lets you keep the number, with Google Calendar booking and transfers to your team. No plan has a setup fee. Try LobbyStack free or compare plans on the pricing page.