Calculating the true cost of a missed call

Every business owner knows missed calls are bad. Far fewer have put a number on it, and the number is usually larger than expected. Here is a simple framework to calculate what unanswered calls actually cost, and why it changes how you think about reception.

The basic formula

Start with three inputs you already know or can estimate:

• **Missed calls per day**, calls that ring out, go to voicemail, or arrive after hours.
• **Conversion rate**, the share of answered enquiry calls that become customers.
• **Customer lifetime value (LTV)**, the total revenue an average customer brings over time.

The daily cost is roughly: *missed calls × conversion rate × LTV*. Multiply by working days for the monthly figure.

A worked example

Imagine a dental clinic missing 6 calls a day. Suppose 1 in 3 enquiry calls becomes a patient, and a patient is worth 4,000 over their relationship with the clinic. That is 6 × 0.33 × 4,000 ≈ 7,900 in lost lifetime value **per day**, before counting referrals the patient never made. Over a month, the figure runs well into six figures in many practices.

The hidden tax of manual reception

Missed calls are only the visible loss. There is a quieter one: the receptionist who interrupts an in-person customer to answer the phone, the caller put on hold who hangs up, the after-hours enquiry that no one ever sees. Manual reception forces a constant trade-off between the person in front of you and the person on the line, and both lose a little.

Why "answer everything" changes the math

The value of an AI receptionist is not that it is cheaper than a person. It is that it removes the trade-off entirely: every call answered, every hour, in the caller's language, while your team stays focused on the work in front of them. When the conversion side of the equation stops leaking, the LTV you were already paying to acquire finally lands.

Run your own number

Plug your real figures into the formula above. If the monthly result is larger than the cost of never missing a call again, the decision makes itself. Hala is built to answer every call and capture the demand that manual reception quietly loses.