How do I handle calls after hours so customers don't just call a competitor?

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Think about what actually happens on the caller's end when your phone rings out after hours with nothing. Silence, or a generic ring that eventually stops, tells them nothing about whether you're closed for the night or simply ignoring them. A caller with an urgent need, a burst pipe, a locked-out tenant, doesn't wait to find out which. They search for the next option and call it, and you've lost a job you never even knew you had a shot at.

Calilio is one phone system that lets you set business-hours rules and an after-hours message as a built-in feature, and KrispCall's Advance plan offers a similar IVR setup if you're comparing providers. A live answering service staffed by a person is the other real option for anything urgent enough to need a human on the line. I'm using Calilio's version here as a concrete example of how the setting actually works.

The real cost of a silent after-hours line

This isn't really about being unavailable after hours, every business is unavailable at some point. It's about what the caller experiences in that gap. A business that answers with a clear, confident message ("our office is closed until 8am, for anything urgent press 1 to reach our on-call technician") reads as organized and reliable even while closed. A business that just rings and rings reads as unreachable, whether or not that's actually true, and the caller has no way to tell the difference between "closed for the night" and "doesn't answer its phone."

Setting business hours that actually reflect your week

Confirmed on Calilio's own features page, business hours let you set different schedules for each day of the week with a time zone assignment, and calls route to agents during configured working hours, to voicemail automatically outside them. Holiday and special-day exceptions are supported too, described as the ability to "customize call handling rules for weekdays, weekends, and holidays," though Calilio's own documentation doesn't spell out exactly how many holiday exceptions you can configure or how far in advance you need to set them, so build in a little buffer time rather than setting a holiday schedule the morning of.

This matters especially for a business with a non-standard week. A Dubai-based company running Friday as a weekend day, for instance, needs that reflected in the schedule directly rather than relying on someone remembering to manually change the greeting every week, which is exactly the kind of thing that gets forgotten the one week it matters. Setting Friday and holiday phone hours covers this in more detail.

Step by step: building the after-hours path

1. Write down your actual hours, including any day that differs from the rest (a shorter Friday, a closed weekend, seasonal hours) rather than assuming a generic Monday-to-Friday default covers it.
2. Set the after-hours rule to route to a clear voicemail message, a direct on-call number, or both depending on the call type. A single rule for every after-hours call misses the distinction between "can wait until morning" and "needs someone now."
3. Record a message that sets a specific expectation, not a vague "we'll get back to you." A concrete window ("we return after-hours messages by 9am the next business day") gives the caller a real reason to leave a message instead of hanging up and dialing the next number. Wording ideas are in what to say on a business voicemail.
4. Forward genuinely urgent categories to an on-call mobile rather than routing everything to voicemail. This is the part that actually retains emergency-driven business: a real human answering a real emergency call, even outside hours, when the alternative is losing that customer entirely. Sorting urgent calls overnight helps you decide what counts as urgent.
5. Test it at night, not during the day when you can see the settings working. Call your own business line after closing and listen to exactly what a real customer would hear.
6. Check messages every morning as a non-negotiable habit, since the whole system depends on someone actually following through on the "we'll call you back" promise the message made. Checking weekend voicemails on Monday is a quick routine for it.

This sits on Calilio's Premium plan, $35 a month per user or $28 annual, since IVR and business hours scheduling are Premium-tier features, one step above the Standard plan that covers ring strategies and call queue. If you're only on Standard today, this specific fix requires the upgrade.

A worked example: a plumbing company weighing the upgrade

A plumbing company currently on Calilio's Standard plan, using only ring strategies and a queue during business hours, has to decide whether the jump to Premium ($35 versus $15 a month per user) is worth it just for after-hours handling. The honest way to run that math: estimate how many after-hours emergency calls (burst pipes, no hot water, a flooding basement) you're currently losing to a silent line versus how many of those are worth a service call. If even one extra emergency job a month covers the plan difference many times over, which is true for most trades given typical emergency call-out rates, the upgrade pays for itself almost immediately. The harder case is a business whose after-hours calls are mostly non-urgent (a general inquiry, a quote request that can wait), where a simple "we're closed, here are our hours" voicemail on a free carrier greeting might cover the need without the upgrade at all.

One detail worth deciding deliberately rather than defaulting: whether the on-call mobile number used for urgent escalation is a shared company phone that rotates between whoever's on call that week, or a fixed personal number. A shared on-call phone avoids one person feeling permanently tethered to emergency calls, but it adds the overhead of physically handing off a device or forwarding a number on a schedule, which itself needs to be reliable or you've just moved the "who's actually reachable" problem one level down.

What I'd actually tell you

The message matters less than most businesses think, and the on-call escalation path matters more. A perfectly worded voicemail greeting still loses a genuine emergency caller if there's no real way to reach a live person, and a mediocre greeting still retains a non-urgent caller as long as the callback promise is specific and gets honored. Spend your setup time on the escalation logic (who gets the urgent calls, how fast, on what device) before polishing the wording of the greeting itself.

Worth knowing if you set this up a while ago and haven't revisited it: Calilio has pushed hard into AI voice agent and AI receptionist features through 2026, with several of its own blog posts in October specifically covering AI receptionist setup, cost and ROI. That's a genuinely different, newer category from a static after-hours voicemail message, an AI agent that can actually hold a conversation and triage urgency rather than just play a recording, and it's worth a look if a scripted message genuinely isn't cutting it anymore. The realistic middle ground many trades land on: a scripted after-hours message for genuinely routine calls, with an AI or on-call escalation reserved specifically for the subset of calls that sound urgent, rather than treating every after-hours call as equally deserving of a live response.

When to skip the basic version of this

If your business runs real emergency work where someone needs a live person immediately, don't rely on voicemail-plus-callback at all; an on-call forwarding setup to a mobile is the right baseline, with the after-hours message there mainly for the calls that genuinely can wait. For anything more specific, routing after-hours calls differently depending on what the caller is asking about, or logging after-hours activity into your own job system automatically, that's a custom build I handle on top of whatever phone system you're already running.