Call Handling Terms Every Small Business Owner Should Know

What is IVR?

IVR stands for interactive voice response. It is the automated menu system a caller hears when they phone a business: "Press 1 for opening hours, press 2 for bookings, press 3 for anything else."

For a small business, IVR can route calls to the right person or answer routine questions without tying up a phone line. The trade-off is patience. Callers who want a quick answer can find long menus frustrating, so the practical rule is to keep menus short and make the most common option the first one.

What is call abandonment rate?

Call abandonment rate is the percentage of callers who hang up before their call is answered or their issue is resolved. A caller who waits on hold for three minutes and gives up counts as abandoned.

For a small business, this number matters because an abandoned call is usually a lost enquiry. If someone phones to book an appointment and hangs up before speaking to anyone, the business never knows the call happened. We cover the detail in our guide to call abandonment rate.

What is first call resolution?

First call resolution (FCR) means solving a customer's enquiry completely in their first call, so they do not need to phone back or be transferred. A caller who asks about pricing, gets a clear answer and hangs up satisfied is a first call resolution.

FCR is a useful measure of how well a phone system works. High FCR usually means fewer repeat calls, less staff time spent on the same enquiry and happier customers. We explain how to think about it for a small firm in what is first call resolution.

What is an AI receptionist?

An AI receptionist is software that answers a business's phone calls automatically. It speaks in a natural voice, books appointments into the business's calendar and answers questions using the business's own knowledge base. Unleashed AI Receptionist does exactly this, 24/7.

For an owner-run business, the appeal is straightforward: calls get answered when you are with a customer, driving or asleep. The software does not replace a human for complex conversations, but it handles the routine ones. We compare the options in after-hours call handling.

What is call routing?

Call routing is the process of directing an incoming call to the right person or department. It can be manual (a receptionist transfers the call) or automated (an IVR menu or AI system decides where the call goes).

Good routing means fewer transfers and shorter waits. Poor routing means a caller explains their problem twice and loses patience. For a small team, the simplest routing is often the best: one number, answered by whoever is free, with a clear fallback if nobody is.

What is a knowledge base?

A knowledge base is a collection of information a business uses to answer common questions: opening hours, prices, directions, booking policies, what to bring to an appointment. It can be a document, a website page or the information an AI receptionist draws on when answering calls.

The value of a knowledge base is consistency. Every caller gets the same accurate answer, whether they speak to a person or an AI system. For a small business, writing down the ten questions you get asked most often is a good place to start.

Why these terms matter for small businesses

The UK business population is overwhelmingly small. At the start of 2025 there were 5.64 million small businesses with 0 to 49 employees, 99.18% of the total¹. Most of those have no dedicated receptionist, which means calls are answered by whoever is free, or not answered at all.

That is why call handling terms have moved from call-centre jargon into everyday small business language. When a sole trader or a two-person firm chooses a phone system, they are making the same decisions a large contact centre makes: how to route calls, how to reduce abandonment and how to resolve enquiries quickly. The difference is that a small business feels every missed call directly.

A simple glossary to keep

• IVR: the automated menu callers hear before reaching a person.
• Abandonment rate: the share of callers who hang up before being answered or helped.
• First call resolution: solving an enquiry completely in one call.
• AI receptionist: software that answers calls, books appointments and answers questions.
• Call routing: directing a call to the right person or department.
• Knowledge base: the stored information used to answer common questions.

If you want to go deeper on any of these, our guides on hold time and why customers hang up instead of leaving voicemail cover the caller's side of the same problem.