How does an answering service work?
An answering service picks up your business calls when you cannot. You forward your phone, the service answers using your business name, and either a human agent or an AI handles the conversation: takes messages, books appointments, transfers urgent calls, and sends you a follow-up summary. Traditional answering services are humans reading from a script, billed per minute (typically $1.50 to $3.00 a minute), with a small monthly minimum. AI answering services like Aira hold a real conversation, are billed per call (Starter $24.95/mo for 30 calls, $0.83 per call), and are live in under 5 minutes. AI answers in 0.4 seconds — the highest possible speed-to-lead — handles unlimited concurrent calls, and never takes a break. See the full guide to choosing an answering service.
The call flow, end to end
1. You forward your business number to the answering service.
2. A call comes in. The service answers (humans: 1–3 rings; AI: 0.4 seconds) using a greeting you set with your business name.
3. The agent or AI follows your call-handling rules: answer common FAQ questions, book an appointment, take a message, transfer urgent callers.
4. The service sends you a written summary by email or SMS, plus a recording or transcript.
5. You receive the message or booked appointment and follow up — usually within minutes for urgent items.
Per-minute (traditional) vs. per-call (AI) — example bill
The biggest financial difference is the pricing model. A 12-minute call on a per-minute service is 4x to 6x the cost of the same call on a per-call service. Multiply across a typical month and the difference is meaningful.
| Scenario (30 calls/mo) | Per-minute service ($2/min) | Aira Starter ($24.95/mo, $0.83/call) |
|---|---|---|
| Average call length: 2 minutes | $120/mo | $24.95/mo |
| Average call length: 4 minutes | $240/mo | $24.95/mo |
| Average call length: 8 minutes | $480/mo | $24.95/mo |
| A handful of long 12-minute callers | Bill spikes unpredictably | Same $24.95/mo flat |
Per-minute pricing exposes the buyer to billing surprises on long calls. Per-call pricing caps the cost regardless of duration.
Speed, concurrency, hours
- Aira answer speed
- 0.4 seconds
- Live answering service answer speed (industry)
- 1–3 rings, varies by staffing
- Aira concurrent calls
- Unlimited
- Live answering service concurrent calls
- Capped by staffed agents
- Aira hours
- 24/7/365
- Live answering service after-hours
- Premium tier required
Related questions
- What is the average cost of an answering service?Human answering services average $50-$300/mo; AI answering services run $25-$160/mo for the same call volume. Here's the full price breakdown.
- What is a live answering service?A live answering service routes your calls to human agents who answer using your business name, take messages, and transfer urgent callers. Here's the full breakdown vs. AI alternatives.
- What is a good answering service?A good answering service answers in seconds, runs 24/7, books appointments, gives transparent per-call pricing instead of per-minute overages. Here's the full vetting checklist.