What hidden fees do answering services charge?
- The short answer
- Hidden fees in answering service pricing are the charges that sit off the pricing page. The usual five are unpublished overage rates, minute rounding, setup fees, per-number charges and features held back for a higher tier. GreetKeeper prints every plan and overage rate, from $49 a month for 200 answered calls and $0.45 a call after, with no setup fee.
The longer answer
Overage is the fee that moves most bills. As of September 2026, Ruby, Rosie and Abby Connect leave their overage rate off the pricing page. Slang.ai publishes no call or minute volumes at any tier. You learn the price of a busy month from the invoice.
Rounding is the quiet one. When a service bills every call up to the next whole minute, a forty-second call about your opening hours costs a full minute. A phone that rings often and briefly pays the most for it.
Per-number pricing catches growing businesses. Goodcall prices per agent, and each phone number is an agent, so a second line means a second subscription. Its $0.50 charge for each extra unique customer is published, which helps.
Feature gates are a fee by another name. Rosie's $49 plan puts appointment booking on its $149 plan, so booking costs $149 there. And AnswerConnect shows no prices at all; you get a quote after a form.
Seven questions to ask before you sign
What does one call past my allowance cost, and where is that written? Get the overage rate on paper, not in a sales call.
Do you round up to the minute, and on every call? Ask for the rounding rule in the same email as the rate.
Is there a setup fee, an onboarding fee or a porting fee? Setup charges rarely appear next to the monthly price.
Does a second phone number or a second location cost a second plan? Ask before you add a branch, not after.
Are booking, transfers and your calendar connection on my plan, or on the next one up? Price the plan that does the job you need.
Do robocalls, hang-ups and wrong numbers count toward my allowance? Spam reaches every business line, so the answer matters.
What is the contract term and the notice period? A cheap month is expensive if you're locked in for a year.
How GreetKeeper handles it
GreetKeeper publishes every number on the pricing page. Starter is $49 for 200 answered calls, Professional $149 for 750 and Scale $349 for 2,000, and the overage is $0.45, $0.35 and $0.25 a call.
Billing is per answered call, so nothing is rounded up to a minute. Robocalls and spam calls are screened out before the greeting and never count toward your plan, and very short calls don't count either.
Booking into Google Calendar or Microsoft Outlook is on every plan. Each location gets its own dedicated local number, included. There's no setup fee, and every plan starts with a 14-day free trial with no card needed.
Answering service fee questions
Do answering services charge setup fees?
Some do, and the fee rarely sits beside the monthly price. Ask in writing before you sign. GreetKeeper charges no setup fee; the monthly plan is the whole price.
Why don't answering services publish overage rates?
A published rate is easy to compare, and an unpublished one isn't. As of September 2026, Ruby, Rosie and Abby Connect leave it off their pricing pages. GreetKeeper prints $0.45, $0.35 and $0.25 a call by plan.
What is minute rounding on an answering service bill?
Minute rounding bills each call up to the next whole minute. Twenty calls of forty seconds bill as twenty minutes instead of about fourteen. Per-call billing, as on GreetKeeper, has no rounding to argue about.
Hear it take one of your calls
Two minutes, your own scenario, no card.