What the beep actually costs
A voicemail greeting is the message a caller hears when nobody picked up. That framing matters, because it means the greeting is never the goal — it is what you say after the thing you wanted has already failed to happen.
Two measurements set the size of the problem. CallRail put the share of callers who actually leave a voicemail at 42% in 2025 — so most people who reach your mailbox say nothing at all. And BIA/Kelsey's industry estimate, which is an estimate rather than a published study and should be read as one, is that 85% of people who reach voicemail never call back.
Put those together and the greeting has one job: to make the minority who do speak leave something you can act on, and to give the majority who will not speak a reason to do anything other than dial your competitor.
Six greetings you can record today
Read these aloud before you record them. A greeting that looks fine written down and sounds like a contract read at speed is worse than no greeting, because the caller stops listening before the part that tells them what to do.
“You've reached [company]. We can't take your call right now. Leave your name, your number and what you need, and we'll call you back today. If it's urgent, [alternative].” The promise is specific and short enough to be kept.
“You've reached [company] outside our opening hours. We're open [hours]. Leave your number and what you're calling about and you'll be first in the queue in the morning.” Naming the hours stops the caller wondering whether to try again in ten minutes.
“Every line is busy at the moment — we're not ignoring you. Leave your number and we'll call back within [time], or hold and the next free person will pick up.” Say which it is; do not offer both without meaning both.
“You've reached [company]. If you're calling to book, leave your name, number and the day that suits you and we'll confirm by text. If you're calling to change an appointment, say the date you're booked for.” Asking for the date turns a callback into one message instead of three.
“We're closed until [date]. Nobody is checking this mailbox until then. For anything that can't wait, [alternative].” Telling people the mailbox is unwatched is more useful than a promise you will not keep.
“This is [name] at [company]. I'm with a customer. Leave your number and what you need and I'll call you back between [window].” A named person and a window beat a company voice and a vague soon.
The four things every greeting has to contain
People misdial and people forget who they called. A greeting that opens with the company name confirms the caller is in the right place before you ask them for anything.
Closed, busy, or with a customer. One clause. The caller is deciding whether this is a company that answers phones, and silence on the reason reads as the answer being no.
Name, number, and the thing they want. Ask for exactly those three and most messages arrive complete. Ask for nothing and you get a name and a request to call back, which starts the conversation from zero.
A window you will actually hit. This is the only sentence in the greeting that can be a lie, and it is the one callers remember.
The number to check before you rewrite anything
Count how many of last month's voicemails were returned, and how long each took. Most teams find the greeting was never the constraint — the messages arrived and nobody worked the list. A better greeting on an unworked mailbox just produces better-formatted messages that nobody answers.
Why the best greeting still loses
Even written well, the greeting is competing with the caller's next option, which is usually the search result underneath yours. ContactBabel measured the average wait before a caller hears a human voice at 116 seconds in 2024, and 8.4% of inbound callers hang up before anyone answers at all. Velaro's 2012 survey put the share who will not hold past one minute at around 60%. None of those callers reach your greeting; they reach somebody else's answered phone.
A greeting is the best sentence you can say to somebody who has already decided you were not available.
What replaces a greeting
The alternative is not a longer greeting or a faster callback promise. It is answering. An AI voice agent takes the call at the moment it arrives, at any hour, asks the same three things a good greeting asks for, and hands over a written request instead of an audio file somebody has to listen to and transcribe. Benerra prices that per talk minute, with the rates published on the site, so the comparison against a mailbox is a comparison you can do on your own numbers.
Keep the greeting anyway. Lines fail, agents get updated, and something has to answer when nothing else does. Write it as the fallback it is, not as the plan.