Alarm Services4 min read·February 10, 2026

The Real Cost of Your After-Hours Voicemail: A Security Dealer's Math

Your voicemail message says 'leave a message and we'll call you back.' Here's what that actually costs a 20-person alarm company every year.

The Real Cost of Your After-Hours Voicemail: A Security Dealer's Math

Most alarm dealers think of their after-hours voicemail as a cost-neutral fallback. "We can't be on the phones 24/7, so voicemail is fine."

Let's run the actual numbers for a 20-person alarm and security company and see what that assumption costs.

The Setup: A Typical Mid-Size Alarm Dealer

Imagine a security company — let's call them Valley Alarm — operating in a mid-size metro area. They have:

  • 20 employees (mix of office staff, sales, and field techs)
  • ~2,400 active monitoring accounts ($38/month average RMR)
  • 3 office staff handling inbound calls during business hours (8am–5pm, Mon–Fri)
  • An after-hours voicemail with a callback promise by next business day

On paper, this looks fine. In practice, it's leaking revenue every single week.

Step 1: How Many Calls Come In After Hours?

Valley Alarm receives roughly 35–40 inbound calls per business day. Based on industry data showing ~40% of service business calls come in outside standard hours, they're likely receiving another 20–25 calls per evening/weekend/holiday.

Let's be conservative: 20 after-hours calls per business day equivalent (averaged across the full week).

Step 2: How Many of Those Callers Actually Leave a Message?

Industry data is clear here: less than 3% of callers leave a voicemail when they reach one. The rest hang up.

Of Valley Alarm's 20 after-hours calls, approximately 0–1 leave a message. The other 19 either hang up or move on.

Step 3: Where Do They Go?

85% of callers who reach a voicemail never call back. That means roughly 16 of those 19 callers are gone — not to be heard from again.

62% of those — about 10 callers — will contact a competitor immediately.

Valley Alarm is handing 10 qualified leads directly to their competition every business day equivalent, just from after-hours voicemail.

Step 4: What Are Those Calls Worth?

Not all 20 after-hours calls are new-client leads. Let's segment them:

Call typeVolume/dayAvg valueClose rate (if answered)
New residential inquiries~4$1,200 upfront + $38/mo RMR~30%
New commercial inquiries~2$2,500–$8,000~25%
Service scheduling (existing)~8$175–$350Significantly higher
Other (billing, trouble, non-revenue)~6

Running the revenue math for just the new residential calls:

  • 4 missed leads/day × 5 days/week = 20 per week
  • 20 × 85% gone forever = 17 permanently lost
  • 17 × 30% close rate (if answered) = ~5 potential new accounts per week
  • 5 accounts × $38/month × 12 months = $2,280/year in recurring revenue per week of losses
  • Over 52 weeks: $118,560/year in lost residential RMR from after-hours calls alone

At 35x RMR, that represents $4.1 million in lost enterprise value over the same period.

That's just the residential new-account calls. It doesn't count the commercial leads, the service call revenue, or the subscriber calls that drove customers to a competitor.

Step 5: The "We'll Hire Someone" Math

The obvious response: hire an after-hours answering service or add staff.

A dedicated answering service runs $200–$600/month for basic coverage. That's $7,200/year — cheap compared to the revenue leak. But generic answering services don't understand RMR, don't know how to qualify an alarm lead, and often create more confusion than they resolve.

Hiring staff to genuinely cover after-hours and weekends? You're looking at at minimum two part-time people or one full-time person with evening and weekend coverage. Fully loaded: $40,000–$55,000/year — and they still can't handle simultaneous calls, still get sick, and still don't work holidays.

The Actual Fix

Valley Alarm's after-hours voicemail problem isn't a staffing problem. It's a technology problem.

An AI voice agent that answers every call instantly, qualifies the lead, captures contact details, books service calls directly into the dispatch system, and handles routine subscriber questions costs a fraction of what they're losing — and covers 24/7/365 without sick days, turnover, or simultaneous call limits.

The math is not close. The question is just whether you've done it.


Ozzy is an AI voice agent built for alarm dealers, fire protection contractors, and security integrators. It answers every call 24/7, captures leads, and schedules appointments — so your voicemail stops costing you money.

Want to see Ozzy in action?

15-minute demo — no commitment, no sales pressure.

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