What is overflow routing?

Two triggers do most of the work. Busy, meaning the line is engaged, and no answer, meaning it rang for a set time and nobody picked up.

The second one has a number attached that most people never think about. Ring for too long and callers hang up first; too short and you divert people your team would have reached.

Around twenty seconds is a common setting, which is roughly four or five rings. Emergency-type businesses often go shorter.

Where the overflow lands decides whether any of this helped. A second line that also rings out has moved the problem rather than solved it.

Picture a salon with two phone lines and one person at the desk. The owner sets forwarding on no answer, so a call that rings 20 seconds goes to a backup. She tests it on a quiet Tuesday and it works.

Saturday at 10:00 the desk is checking out a client, line one is mid-call with a bride's mother, and line two rings. It forwards after 20 seconds as planned. Then a third caller dials in while both lines are in use. There's nothing to ring, so the no-answer rule never starts. That caller hears a busy signal and tries the salon down the road.

Carriers treat these as separate settings. Forward on busy, forward on no answer, and forward when unreachable each have their own switch, often their own star code. The owner set one of three. Her unreachable rule, which covers a power cut or a dead internet line, was off as well.

Once overflow is in place, count how many calls take that path each month. It's the most honest measure you'll get of how often your front desk is stretched past what it can answer.

Say 120 of your 700 monthly calls overflow. That's 17%, and the hours they cluster in tell you where the gap is. If most land between 10:00 and 12:00 on Saturdays, you have a Saturday problem and the rest of the week is fine.

The count also tells you what a backup will cost. GreetKeeper bills per answered call, and the Starter plan covers 200 calls a month for $49, with extra calls at $0.45 each. A business overflowing 120 calls sits inside that with room to spare. One overflowing 260 would pay $49 plus 60 extra calls, which comes to $76 and is still well under the $149 plan. The bigger plan only becomes cheaper past roughly 420 calls a month.

Overflow to GreetKeeper is set at your carrier, which is why it keeps working when your own equipment does not.

The caller reaches an assistant that can book, take details and hand the call on, rather than a recording.

You choose the ring count. GreetKeeper answers only the calls you miss, after the number of rings you set, so your own staff always get the first chance at the phone.