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Calculator
Change the example inputs to match your business. Your entries stay in this browser; they are not sent to us.
Illustrative inputs are not industry benchmarks. These tools do not audit accounts, send messages or deploy services. Review every output before using it.
Start with the calls that could become work
Open your call log and separate new inquiries from existing customers, suppliers and obvious spam. If every phone call goes into the model, the result will overstate the opportunity. A busy phone is not the same as a busy sales pipeline.
Next, check what happens after a missed call. A customer who leaves a voicemail and gets a useful reply has not necessarily been lost. Count the calls you already recover before estimating what better handling could change.
Read the result as a scenario
The model multiplies inquiry calls by the missed share, removes the share already recovered, then applies your estimated close rate and contribution per job. Contribution means what remains after the direct costs of doing the work. It is not the total invoice.
For example, 100 inquiry calls with 20% missed and 25% of those recovered leaves 15 unrecovered inquiries. At a 30% close rate and $200 contribution, the scenario is $900. It does not mean a new phone system will recover $900. Some callers would not have bought.
Try the smallest useful fix
Start with a named person responsible for callbacks and a clear after-hours message. Check whether calls should ring another available person before they reach voicemail. Test this from a number outside the business.
If you are considering a phone agent, give it a narrow job first: answer approved questions, capture a message or route the caller. A live booking claim needs a working booking integration. The phone-agent guide walks through that distinction.
Check what happened
Record missed inquiries, callbacks and booked work over a comparable period after the change. Look for operational improvement before assigning all new revenue to the tool.
Keep the calculator assumptions visible when discussing a budget. The useful question is whether the likely improvement justifies the cost, not whether the biggest possible number looks impressive.
Common questions
Why not use revenue per job?
Revenue ignores the cost of fulfilling the extra work. Contribution gives a more useful starting point for deciding what to spend.
Does this scan my phone records?
No. It calculates from the numbers you enter, in your browser. Nothing is sent to a phone provider.