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21 Oct 2026

Business Hours Routing: Set Up Calls for Open, Closed and Holidays

Business hours routing means your phone system decides where a call goes based on the clock and the calendar. During opening hours it rings your team. After closing it goes to an after-hours message, an on-call person or an AI agent. On a public holiday it follows a separate plan. Done well, no caller hits a dead end. Done badly, you lose jobs while you sleep, or while you eat lunch.

This guide covers the rules worth setting, how to handle lunch breaks, no-answer and Australian public holidays, and where an AI front desk like Wattle fits when a voicemail box is not enough.

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TL;DR

  • Business hours routing sends calls to different destinations by time of day, day of week and specific dates, instead of every call hitting the same desk.
  • Treat “open” as more than a yes or no: lunch breaks, seasonal hours, on-call windows and holidays each deserve their own rule.
  • Every rule needs a fallback for when nobody answers, otherwise the call still goes nowhere.
  • Public holidays differ by state and territory in Australia, so set dates per location, not once for the whole business.
  • An AI voice agent can answer outside hours, book the job and hand urgent calls to a person, which a voicemail greeting cannot do.

Table of Contents

What business hours routing actually does

According to one 2026 setup guide, time-based routing directs calls to different destinations by time of day, day of the week or specific dates, so that rules decide where a call lands rather than one desk taking everything. Most business phone platforms describe it the same way. One cloud PBX provider’s documentation, for example, covers office hours, after hours, weekends and holidays as separate cases.

The building blocks are simple:

  1. A schedule. The days and hours you are open, in the right time zone.
  2. Exceptions. Holidays, one-off closures, early finishes.
  3. Destinations. A person, a ring group, a call queue, voicemail, a mobile number or an AI agent.
  4. A fallback. What happens if the destination does not pick up.

If you want to see how routing logic works inside larger teams, our piece on intelligent call routing in contact centres goes into skills-based and intent-based routing. This article stays with the clock and the calendar.

Why the stakes are real for Australian businesses

Calls outside your schedule are not idle curiosity. A 2026 Australian industry write-up estimates that small and medium businesses miss between 22% and 62% of incoming calls, with trade businesses missing around 35%. It puts the average loss for a small business at about A$35,000 a year. Treat these as indicative industry figures rather than a guarantee for your business, but the direction is clear.

The same source reports that 85% of callers do not ring back after a failed first attempt, and 67% will dial another business if they do not reach a live person. If a plumber, accountant or physio is closed at 6 pm and the call rings out, the caller is usually on to the next listing within minutes.

Indicative figures on missed Australian business calls

That is why routing rules deserve more thought than a single “after hours: voicemail” switch. For a broader look at the cost of silence and how quick answers shape customer expectations, this overview of time-saving tech for mid-market businesses is a useful companion read.

Build your schedule: more than open and closed

The most common mistake is treating business hours as a binary. Telephony specialists point out that resilient setups include lunch breaks, seasonal adjustments and on-call windows, so availability is a strategy rather than just a closing time.

A practical Australian schedule might have five or six states, not two:

Window Example Best destination Core hours Mon to Fri, 8:00 am to 5:00 pm Reception or team ring group Lunch break 12:30 pm to 1:15 pm Overflow: AI agent or one rostered person Early evening 5:00 pm to 7:00 pm On-call mobile or AI agent with handover Overnight 7:00 pm to 7:00 am AI agent for booking and triage, urgent calls escalated Weekends Sat and Sun Reduced hours or after-hours flow Holidays Per state calendar Dedicated holiday flow

The times are an illustration, not a recommendation. Pull your own numbers from call logs: which hours generate calls you currently miss? Many tradies find the busiest windows are before 8 am and after 5 pm, exactly when they are on the tools or driving.

Time zones and daylight saving

Australia spans several time zones, and daylight saving applies in some states and not others. If you run offices in Perth and Sydney, a schedule set in one zone will misroute calls in the other. Good platforms let you assign a time zone to each schedule. One SIP provider’s documentation, for instance, describes timezone-aware schedules that decide whether you are open, closed or on a holiday. Check this setting first when routing seems to “switch late”.

Lunch breaks and split shifts

If your front desk closes for lunch, the phone should not just ring out. Some platforms let you set a lunch break per number alongside holidays and a manual open or closed override. Use the lunch window to send calls to an overflow destination rather than voicemail.

No-answer routing: the rule people forget

A schedule only tells the system where to send a call first. It does not guarantee anyone picks up. No-answer routing defines what happens when the destination is busy, unreachable or ignoring the phone. CallTrackingMetrics describes it as the plan for when the receiving number or agents are already on a call or cannot answer.

A sensible chain during opening hours looks like this:

  1. Ring the main team for 15 to 20 seconds (about four to five rings).
  2. If nobody answers, ring a second group or a mobile.
  3. If still nothing, send the call to an AI agent or a message that offers a callback or a booking link.

The Australian industry write-up cited above says consumers expect an answer within about three rings, so keep the first stage short. Long ring-outs make a business seem unreachable even when someone is simply on another line.

One extra tip: a hosted PBX “follow me” setup can ring a desk phone and a mobile app at the same time, which reduces the delay before someone answers.

Public holiday call routing in Australia

Holidays are where schedules break. Public holidays in Australia are set by state and territory, and some apply only to certain regions. The Fair Work Ombudsman’s public holidays page lists them by jurisdiction. Its Christmas period listing shows, for example, that Boxing Day and an additional substitute day fall differently across Queensland, South Australia and the Northern Territory, and that some places have partial-day holidays such as Christmas Eve from the evening. Tasmania even lists a local show day observed only in certain areas.

What that means for routing:

  • Set holidays per location. A national business with branches in Brisbane and Adelaide needs separate holiday calendars, not one shared list.
  • Check part-day holidays. A holiday that starts at 6 pm or 7 pm needs a mid-day schedule change.
  • Add your own closure days. Christmas shutdowns, staff days and stocktakes belong in the same calendar.
  • Review every year. Some dates move, and substitute days appear. Put a reminder in October for the next year’s calendar.
  • Use a manual override. If a storm or a power cut closes you unexpectedly, you want a single switch that forces “closed” instantly.

On holidays, think about what callers need. A dental clinic might direct emergencies to an on-call dentist and take bookings for the following week. A property manager might want only urgent maintenance escalated. A different greeting on holidays, naming the date you reopen, saves repeat calls.

What to say when you are closed

A closed message should do three jobs in under 20 seconds: say you are closed, say when you reopen, and offer a next step. Avoid reading out full opening hours for each day.

An example for a service business:

“Thanks for calling. We’re closed right now and reopen at 7:30 tomorrow morning. If it’s an emergency, press 1. Otherwise, stay on the line and we’ll take your details and book you in.”

Write for the ear and keep it short. Our guide to a 3 to 6 second call greeting script has templates for the opening line, and the same principles apply to after-hours messages.

Voicemail, on-call staff or an AI agent?

Once you know when you are closed, choose what answers. Here is how the main options compare.

Option Strengths Weaknesses Voicemail Cheap, simple Many callers hang up; no booking; messages wait until morning On-call person Real human for emergencies Costly, tiring, hard to sustain every night Human answering service Live voice after hours Per-minute or per-call cost; limited access to your calendar AI voice agent Answers every call, books into your calendar, escalates urgent cases Needs setting up with clear guardrails and handover rules

For most small and mid-sized service businesses, the best approach is a combination: an AI agent answers first outside hours, and the on-call person is contacted only when the call meets your urgency criteria. We cover the practical Australian setup in our after-hours answering service guide.

Our perspective: routing should end in an outcome, not a voicemail box

Most routing advice stops at “send after-hours calls to voicemail”. We think that is where the real problem begins. A caller who wants to book a hot water repair, a tax appointment or an insurance change does not want to leave a message and wait. They want it handled.

That is why we built Wattle as an AI front desk rather than a call-forwarding tool. It picks up calls, asks the relevant questions, books appointments into your connected calendar, and passes sensitive or complex conversations to your staff. You can run it in conversational mode for flexible calls, or scripted mode when you need a controlled, predictable flow, which suits things like emergency triage where the questions must be asked in a set order.

Our view on schedules is simple. Decide who you want answering in each window, give each window a clear fallback, and never let a call end without either a booking, a callback commitment or a human on the line. The same logic works across phone, web chat, WhatsApp and SMS, so a customer who messages at 9 pm gets the same quality of response as one who phones at 9 am, and everything lands in one inbox.

Industries differ. A HVAC business needs emergency triage, a firm of accountants needs to handle peak tax periods, and insurance brokers need careful identity checks. The routing rules should reflect that.

— Christopher

A worked example: a three-person plumbing business

Here is how the rules might look for a small plumbing business in Melbourne. The numbers are an illustration, not data from a customer.

  • Mon to Fri, 7:00 am to 4:30 pm: ring the owner’s mobile and the office line together for 18 seconds.
  • No answer: an AI agent answers, asks the address and the problem, books the next available slot or flags it as urgent.
  • Mon to Fri, 4:30 pm to 7:00 am: AI agent answers first. If the caller describes a burst pipe or gas smell, the call is passed straight to the rostered on-call plumber.
  • Weekends: same as overnight, with a greeting that names Monday’s start time.
  • Public holidays (Victorian calendar): overnight flow all day, with a greeting naming the next working day.
  • Manual override: a single switch to force “closed” if the team is stuck at a long job or the weather turns.

The owner stops checking voicemail at 9 pm. Routine bookings fill the calendar, and only genuine emergencies buzz the on-call phone.

Setting up your rules step by step

  1. Audit your calls. Export a month of call logs. Note the hours when calls were missed and the reasons for them.
  2. Define your windows. Core hours, lunch, early evening, overnight, weekends and holidays.
  3. Assign a destination to each window. Include a named person or group, not just “the team”.
  4. Set the fallback. Decide what happens after 15 to 20 seconds with no answer.
  5. Load the holiday calendar. Use your state’s official dates and add your own closures.
  6. Write the greetings. One for open, one for closed, one for holidays. Keep each short.
  7. Test with real calls. Call from a mobile at each window, including just before and after a changeover time.
  8. Review monthly. Check missed calls, abandoned calls and bookings made after hours, then adjust.

Common mistakes to avoid

  • Wrong time zone. Calls switch an hour early or late, especially around daylight saving.
  • Forgotten holiday dates. The new year’s calendar is never loaded, and Christmas calls hit a desk nobody is sitting at.
  • No second stage. The schedule works but the destination does not answer, and there is no fallback.
  • Overlong menus. Callers who must press three options to reach someone often give up.
  • Mobile-only on-call. One phone, one person, no backup. If they are out of range, the call is lost.
  • Silent calls. If a call transfers to a number that is switched off, the caller hears nothing. Test every destination.

Where Wattle fits

If you want outside-hours and no-answer calls handled by an agent that books work rather than takes a message, see what Wattle’s AI receptionist features include. Plans are published on our pricing page: Starter is 99 A$ per month, Pro is 499 A$ per month and Max is 999 A$ per month. Australian mobile numbers, outbound calling and transfers are listed as separate fees on that page. You connect your existing calendar and phone numbers, set the agent’s greeting, persona and guardrails, and decide when calls should be handed to your team.

FAQ

What is the difference between business hours routing and call forwarding?

Call forwarding sends every call to one number all the time. Business hours routing applies rules by time, day and date, so the same number can ring your team in the morning and trigger an after-hours flow at night. It can also use a different plan for holidays.

What should happen to calls when nobody answers?

The call should move to a second stage, such as another group, a mobile or an AI agent, within roughly 15 to 20 seconds. The last step should always give the caller something useful: a booking, a callback promise or a message to a person. A plain ring-out or silent voicemail loses most callers.

How do I handle public holidays across several states?

Set a separate holiday calendar for each location, because Australian public holidays vary by state and territory and sometimes by region. The Fair Work Ombudsman publishes the dates. Add your own closure days too, and review the calendar every year.

Can I route calls differently during lunch?

Yes, if your platform supports a break window on each number or schedule. Send lunchtime calls to an overflow person or an AI agent rather than voicemail, so callers can still book or get an answer.

Do I need a new phone number to set this up?

Not necessarily. Many systems let you keep your existing number and apply routing rules to it. Check with your phone provider about forwarding or porting before you change anything.

Sources

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