What Is an Answering Service? Types and How It Works

What is an answering service? A definition, how it works, live vs automated, after-hours, overflow and dispatch types, and how it differs from a call center.

What is an answering service?

An answering service is an outside company that answers a business's phone calls when the business cannot, typically after hours, during busy periods or when staff are unavailable. Operators answer in the business's name, take messages, relay urgent calls to on-call staff and often book appointments or handle simple requests. The business pays for coverage instead of staffing the phone.

Answering services are one of the oldest forms of outsourced customer contact. Before voicemail existed, a doctor or a plumber who left the office forwarded the phone to a switchboard where an operator took the message and tracked the person down. The modern version keeps the same purpose and adds software: calls are identified by the number dialed, the operator sees the business's instructions on screen, and the message reaches the business by text, email or app within moments. The service page is answering services; the parent category is explained at what is BPO.

The reason businesses still use answering services rather than voicemail is simple. Many callers hang up on a recording and call the next business on the list. A person who answers, listens and promises a callback keeps the caller, captures the detail and can tell the difference between a routine message and an emergency.

How does an answering service work?

An answering service works by receiving calls forwarded from the business's phone number, presenting each call to an operator together with that business's script and instructions, and delivering the result to the business in the form it has chosen. The whole process is defined before the first call by a setup the business controls.

The business decides when calls are forwarded. Forwarding can be always on, so the service answers every call; conditional, so the service answers only calls that go unanswered, hit a busy signal or arrive outside set hours; or manual, switched on when the office closes or staff step out. The business writes the greeting, lists the questions operators may answer, defines what counts as urgent and names who should be contacted for an urgent call, in what order and by what method.

When a call arrives, the operator greets the caller in the business's name, gathers the caller's name, number and reason, and follows the rules. A routine message is recorded and sent. An urgent call is escalated: the operator may patch the caller through to an on-call person, call or text that person until someone picks up, or follow a dispatch list in a set order. Everything is logged, so the business can see every call, every message and every escalation the next morning. Operators are usually shared across many clients, which is what keeps the service affordable for businesses with modest call volume.

What types of answering service exist?

Answering services are usually described by when they answer and what they do with the call. The categories overlap, and most providers offer several of them under one contract.

• Live answering service. A person answers every call. The baseline service, and what most people mean by the term.
• Automated answering service. A recorded or speech-driven system answers, offers menu options, takes a voice message or routes the call. Cheaper and instant, but no human judgment.
• After-hours answering service. Coverage from the moment the office closes until it opens again, including weekends and holidays, with messages queued for the morning and urgent calls escalated. See 24/7 live answering service.
• Overflow answering service. The business's own staff answer first; calls that wait too long or arrive while every line is busy roll to the service. Protects callers during spikes without adding staff.
• Dispatch answering service. Built for urgent calls. Operators follow an on-call schedule and escalation list to reach a technician, clinician or manager, and keep trying until someone responds. Used by property management, utilities, trades and medical practices.
• Virtual receptionist service. A fuller daytime version that transfers calls live, books appointments and answers questions as an in-house receptionist would, rather than only taking messages.
• Specialized answering service. Services trained for a specific field, such as medical, legal or funeral homes, with the scripts, vocabulary and compliance handling that field needs. See HIPAA-compliant answering service.

What is the difference between live and automated answering?

A live answering service puts a person on the line; an automated answering service puts a system on the line. Both answer the phone, but they differ in judgment, flexibility and how callers react, and the right choice depends on who is calling and why.

• Live answering. Operators can listen, ask follow-up questions, recognize distress, decide that a call is urgent even when the caller does not say so, and handle requests nobody anticipated. Callers generally prefer it, and it captures better information. Capacity and cost depend on staffing.
• Automated answering. Systems answer instantly regardless of volume, follow the menu exactly, and cost less per call. They work well for simple routing, hours and location information, and voice messages. They frustrate callers with complex or emotional needs, and many callers press zero or hang up to find a person.
• Hybrid. An automated front end greets the caller, sorts simple from complex, and routes complex or urgent calls to a live operator with the detail already captured. Most modern services are built this way to some degree.

A rule of thumb: automate what callers can answer with a button or a sentence, and put a person on everything else, especially anything that might be an emergency.

How is an answering service different from a call center?

An answering service answers and relays; a call center resolves. The answering service takes the call, records what the caller needs and passes it to the business or an on-call person. The call center handles the matter itself, with agents trained in depth on the business's products, policies and systems, and usually works on a dedicated basis with longer calls and broader duties.

The practical differences follow from that. Answering service operators are shared across many clients and trained on each one's instructions, which keeps costs low but limits how much they can do for any one business. Call center agents are trained for days or weeks on one account and can process orders, troubleshoot, sell, retain and resolve complaints. An answering service is measured on speed of answer and accuracy of messages; a call center is also measured on resolution, handle time and customer satisfaction. Many businesses use both: an answering service for after-hours coverage and a call center for the daytime work. The full comparison is at answering service vs call center.

Which businesses use an answering service?

Answering services are used by any business whose calls matter and cannot always be answered by its own people. The typical user is small to mid-sized, receives calls outside normal hours or in unpredictable bursts, and loses money or trust when a call goes to voicemail.

• Medical, dental and veterinary practices. After-hours patient calls, appointment requests and urgent escalation to the on-call clinician.
• Law firms. New client intake and existing client calls that arrive while attorneys are unavailable.
• Home services and contractors. Emergency and routine calls while crews are on site; dispatch to the on-call technician.
• Property management. Tenant maintenance emergencies at any hour, with escalation to vendors.
• Funeral homes. Calls that must be answered by a person, at any hour, with care.
• Small businesses of every kind. Any firm that wants to be reachable without a receptionist on payroll. See small business answering service.

How do you choose an answering service?

Choose an answering service by testing how it answers, how it escalates and how it protects the information callers give it. Call the service during the hours you need and listen for speed, tone and how operators handle an unscripted question. Ask how your instructions are stored and updated, how messages are delivered, how urgent calls are escalated and what happens if the first on-call person does not pick up.

On compliance, a medical practice in the United States needs a service that will sign a business associate agreement and handle protected health information under HIPAA. Any service taking card payments must do so within PCI DSS. If the service places outbound calls or texts to consumers on your behalf, such as appointment confirmations, those must follow the TCPA and Do Not Call rules. Businesses with Canadian or European customers should confirm how personal data is handled under PIPEDA or GDPR.

Finally, ask what happens when you outgrow message taking. Many businesses that start with an after-hours answering service later need a daytime team that resolves calls rather than relaying them. A provider that offers both answering and full call center services under one roof saves a second transition. The wider range of functions such a provider can take on is at BPO services. If you want to scope either, request a proposal with your hours, typical call reasons and escalation needs, and we will outline how coverage would be set up.

Sources and References

The laws, standards and certifications this page refers to, linked to their official text or publisher.

1. HIPAA (Health Insurance Portability and Accountability Act), U.S. Department of Health & Human Services: privacy and security rules for protected health information.
2. PCI DSS (Payment Card Industry Data Security Standard), PCI Security Standards Council: handling of payment card data.
3. TCPA (Telephone Consumer Protection Act), 47 U.S.C. § 227, Legal Information Institute, Cornell Law School: consent rules for autodialed, prerecorded and text outreach.
4. National Do Not Call Registry, Federal Trade Commission: numbers that telemarketers may not call.
5. PIPEDA (Personal Information Protection and Electronic Documents Act), Office of the Privacy Commissioner of Canada: private-sector privacy law in Canada.
6. GDPR, Regulation (EU) 2016/679, EUR-Lex, Publications Office of the European Union: data protection law in the European Union.