After-hours calls at a vet clinic: what callers need and how to cover them

By the Tilly editorial team · Updated October 7, 2026

This article is for veterinary clinic teams. If you're worried about a pet right now, call your vet or nearest emergency clinic.

After-hours calls at a vet clinic are not one problem. They are four: people who want to book or change a visit, people with a routine question, people with a request for your team, and people who may have an emergency. Each kind needs a different answer. This guide shows you how to sort your own after-hours calls, design cover for each kind, keep the emergency path fast and safe, and test it every month. It's written for owners and practice managers, and it stays vendor-neutral until the section that compares cover options.

The short answer: four kinds of after-hours call, four different needs

When your doors close, the phone keeps ringing. Evenings, weekends and holidays add up to more hours than you're open. The calls that come in during those hours fall into four groups:

1. Bookings and changes. "Can I book Bella in for her annual visit?" "I need to move Thursday's appointment." These callers want something done, and they'd like it done now.
2. Questions. "What time do you open on Saturday?" "Do you see rabbits?" "Where do I park?" These have answers your clinic has already decided.
3. Requests. "Can I get more of Max's pills?" "Are the results back yet?" "Can Dr. Patel call me?" These need your team, but not tonight.
4. Possible emergencies. A caller who is worried their pet needs help now. This is the smallest group on most nights, and the most important.

Good after-hours cover gives each group what it needs:

• Bookings and changes get done, not noted.
• Questions get answered from what your clinic has approved.
• Requests get captured completely, so your team can act first thing.
• Possible emergencies get a person or your emergency partner, fast, with no advice from whoever answers.

The rest of this guide takes each group in turn. If you only change one thing, make it the emergency path.

What your after-hours callers are asking for (from your audit)

Before you design anything, find out what your own after-hours callers want. The mix varies a lot between clinics. A clinic near a 24-hour hospital may get few urgent calls after close. A rural clinic may get many. A clinic with online booking may get fewer booking calls at night.

The simplest way to find out is a one-week audit. Our guide to the one-week missed-call audit explains how to pull call data from your phone system. For after hours, add three steps:

1. Count calls by hour after close. Your carrier portal or VoIP dashboard shows when calls came in, even if nobody answered. Note the busy times: the first hour after close, Saturday afternoon and Sunday evening are common peaks.
2. Listen to every voicemail. Sort each one into the four groups above. Tally them. Note how many callers hung up without leaving a message, because you can't sort those.
3. Check the morning. Count the callbacks your team made the next morning and how long they took. That's the hidden cost of after-hours calls: they become work at the busiest time of the day.

Then look at what happens after you open. There is some published evidence that the start of the week is busy for urgent calls. A 2018 analysis by Moneypenny of thousands of calls to UK vet practices, published by VetShow, found the highest volume of emergency-related calls on Monday between 9 and 10am. That's a UK finding from 2018, not a US benchmark. It does suggest that weekend worries arrive at your desk on Monday morning, so plan your Monday cover with your after-hours cover in mind.

At the end of the week you'll have a simple table: how many after-hours calls, when, and of which kind. That table tells you which part of your cover needs the most work. For help reading the numbers, the answer rate and after-hours answering glossary entries explain the terms.

Possible emergencies: partner hospital, on-call vet and what never to say

This is the part of after-hours cover that matters most. The goal is simple: a caller with a possible emergency reaches a person who can help, or your emergency partner, as fast as possible. Whoever answers the phone, whether that's a person, a service or software, is a route to help. They are not the help.

Decide your route before you need it

Your clinic needs one written answer to the question "where does a possible emergency go when we're closed?" There are two common routes, and many clinics use both.

• An emergency partner hospital. A 24-hour or after-hours emergency clinic that agrees to see your clients when you're closed. See the glossary entry on the emergency partner hospital. In some countries this is a formal arrangement: in the UK, for example, Vets Now runs out-of-hours clinics that partner practices send their clients to after close. In the US, arrangements are usually local, so agree yours directly with the hospital, and confirm their hours, number and address in writing.
• An on-call vet. One of your own veterinarians who can be reached after hours, on a rota. See the glossary entry on the on-call vet. Decide who is on call each night, how they're reached, and what happens if they don't respond.

Check what your state expects, too. Some state boards publish guidance on emergency availability. New York's Office of the Professions, for example, says veterinarians should give clients direct contact information for obtaining emergency care and for who to contact in their absence, and that an answering machine or service should tell the public the clinic's hours and when care is available. Look up your own state board's rules and follow them.

The process, step by step

Whatever cover you choose, a possible emergency after hours should follow the same steps:

1. Stop everything else. No booking questions, no taking a message, no "let me check the schedule". The caller's concern comes first.
2. Connect, or give the number. Put the caller through to your on-call vet or your emergency partner. If a connection isn't possible, give the emergency partner's name, number and address straight away, slowly and clearly, and send it by text if you can.
3. Alert your on-call vet, if you have one, so they know a call came in.
4. Log it. Record who called, when, and where they were sent, so your team can follow up in the morning.

Your veterinarians decide what counts as a possible emergency for your clinic and what the person answering may say. Write that down as your clinic's urgent-call policy, and keep it short. The safest rule for anyone who isn't a veterinarian is: if in doubt, treat it as urgent. Sending a caller to a person too early costs a few minutes. Sending them too late can cost much more.

What never to say

Whoever answers your after-hours line, whether a team member at home, an answering service or an AI, should never give advice or reassurance. In practice that means never:

• Guessing what might be wrong.
• Suggesting a medicine, a dose or anything to try at home.
• Saying it's "probably fine", "nothing to worry about" or "it can wait until morning".
• Asking questions to judge how serious it is, beyond what your clinic's own urgent-call policy lists.
• Talking a caller out of going to the emergency clinic.

Instead, the answer is always a route to a person: "I can't give medical advice, but I can get you to someone who can." If the caller asks whether they should worry, the person answering doesn't judge. They connect the caller, or give the emergency partner's details.

Bookings and changes: let them happen at night

Many after-hours callers want something simple: an appointment, or a change to one. Voicemail turns that into a callback tomorrow, and some callers won't wait. Others book with whoever answers first.

There's no reason a routine booking has to wait for morning, as long as it follows the same rules your team uses in the day. If your cover can see your schedule, it can:

• Book a routine visit into the right appointment type, with the right vet and length.
• Move or cancel an appointment, and free the slot for someone else.
• Confirm the booking by text, so the client has it in writing.

If your cover can't see your schedule, the next best thing is a complete request: who's calling, which pet, what kind of visit, and two or three times that suit. Your team can then confirm with one short call or text, rather than starting from scratch.

One rule never changes: a booking call that turns out to be a possible emergency stops being a booking call. The caller goes down the emergency path at once.

Requests and questions: capture now, act in the morning

Questions

Most after-hours questions have fixed answers: your hours, address, parking, which animals you see, what to bring to a first visit. Write those answers down once, approved by your team, and make sure whoever answers your phone uses them. A caller who gets a clear answer at 8pm doesn't call again at 8am.

Some questions sound simple but aren't routine. Anything about a pet's health, a medicine or a test result is not a front-desk question. The answer is to take the details and pass them to your team, or, if it may be urgent, to follow the emergency path.

Requests

Refills, results, a message for a particular vet, a callback request: none of these can be completed at night, but all of them can be captured completely. A good after-hours request includes:

• The caller's name and the best number to reach them.
• The pet's name.
• What they need, in their words.
• For a refill: how they'd like to collect it and how much they have left.
• For results: which test, and when it was done.

Then tell the caller what happens next, honestly: "The team will look at this when we open, and someone will call you." Don't promise a time your team can't meet, and don't hint at an outcome. Refill decisions and results belong to your veterinarians.

In the morning, your team works from a list of complete requests rather than a stack of voicemails to decode. That's where much of the time saving comes from.

Cover options compared: voicemail, answering service, on-call phone, AI front desk

There are four common ways to cover the phone after hours. Many clinics combine two.

Voicemail

Voicemail is free and familiar. Its weakness is that it asks the caller to do the work, and it holds every call until morning. The greeting must give your emergency partner's details clearly, near the start. Our comparison of voicemail and an AI front desk goes into more detail.

Answering service

A human answering service takes messages in your clinic's name and follows a script you agree. It suits clinics that want a person on every call. Check how it handles possible emergencies, whether it can book, and how messages reach your team.

On-call phone

Forwarding calls to a team member or your on-call vet puts a person on every call. It's also hard on that person, especially on busy nights, and routine calls interrupt their evening. Many clinics keep the on-call phone for possible emergencies only.

AI front desk

An AI front desk answers every call, can book into your practice software and captures requests as tasks. The important question for any AI option is what it does with a possible emergency. Ask to hear it.

Here's how Tilly handles after hours. Tilly books appointments, takes refill and results requests, and answers questions, so your team starts the day with tasks, not a voicemail queue. When you're closed, every greeting tells callers how to reach your emergency partner, and a possible emergency gets their name, number and address by voice and text. If you have an on-call vet, Tilly alerts them. Tilly never gives medical advice, and callers who need a person after hours get a callback task timed for when you reopen. If anything fails during a call, it rings through to your fallback number. See after-hours answering, emergency detection and hand-off and the safety rules for the details.

Test your after-hours path every month (checklist)

An after-hours path that worked in January can fail in March: a number changes, a rota slips, a greeting goes out of date. Test it once a month, and after any change to your phone system, your hours or your emergency partner.

Pick a day each month and a named person to do the test. Then, after close:

• Call your main number. Does the right after-hours greeting play, with today's hours?
• Is your emergency partner's name, number and address correct and easy to hear?
• Call the emergency partner's number yourself. Does it reach them? Are their hours what you were told?
• Ask for a person. Are you offered one, or a callback?
• Make a routine booking request. Was it booked, or captured with all the details?
• Leave a refill request. Did it reach your team's list by morning?
• Check your on-call rota. Is tonight's name right, and does their number work?
• Check holidays coming up. Are your special hours set, and are your emergency partner's holiday hours confirmed?
• Write down the date, who tested and what you found. Fix anything that failed the same day.

A phone rota that lists who tests next keeps this from slipping. For the wider picture, including peak-time staffing, overflow and holiday cover, read our complete guide to phone coverage for vet clinics.

If you'd like to hear how an AI front desk handles an after-hours call, including a possible emergency, call our demo.