Classic answering service or AI assistant? A sober look at cost, availability, data protection and quality — with concrete numbers, a migration path and an honest answer on when each pays off.
Tom HansenVoice AI Author
May 4, 2026
Updated October 7, 2026
13 min read
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Straight to the answer
An external answering service typically costs SMBs €1.50–3.50 per call or €0.80–2.00 per minute, plus a base fee and a 50–100% surcharge for 24/7. An AI phone assistant like bhomy starts at €89/month on annual billing (700 minutes included, extra usage in packages of 100 minutes for €15), is reachable 24/7 at no surcharge and live in under 24 hours — no minimum volume and with multiple languages from day one. For standard requests (appointments, information, order intake, call-backs) the AI is markedly cheaper and more consistent; for complaint handling and complex negotiation a human escalation still makes sense.
70–90%
cost saving vs. an answering service (SMB volume)
< 24 h
setup with bhomy — an answering service 1–4 weeks
24/7 incl.
AI with no night/weekend surcharge
If you don't want your phone ringing unheard during the lunch lull or on a Saturday evening, you've traditionally had two options: an external phone service — also called an answering or secretarial service — or, more recently, an AI phone assistant. Both take calls, both deliver notes or appointments to your inbox, both advertise "reachable around the clock". But under the surface the pricing model, scalability, data-protection position and consistency differ considerably. This article lays the facts side by side.
A note on transparency
This comparison was produced by the bhomy team and is based on publicly communicated prices and service descriptions of the largest answering services (as of April 2026). We've aimed to portray the competition fairly — but deliberately don't shy away from a clear recommendation where the data is unambiguous.
01
What is an external answering service?
An external answering service — also called a phone service, secretarial service or "virtual secretariat" — is a provider whose human staff take incoming calls for your business. Calls are forwarded to a service number, the agents answer with your company wording, document the request and pass notes, call-back requests or simple bookings to your team. These services are widely available across markets.
02
What is an AI phone assistant?
An AI phone assistant is software that takes calls on its own, speaks with the caller in natural language, recognises the request and — depending on the use case — books appointments, takes orders, arranges call-backs or transfers calls to the right person. Modern solutions like bhomy use large language models for understanding, neural voices for output, and work with your calendar, CRM or sector tool. Unlike a phone service, the AI works in parallel — 100 simultaneous calls are no technical problem — and doesn't distinguish between day, night or weekend when billing.
03
Head to head: 8 criteria
We compare an external answering service and an AI phone assistant (using bhomy as the example) across the eight criteria that are decisive for SMBs in practice:
Cost per call and per minute
01Answering service: typically €1.50–3.50 per call or €0.80–2.00 per minute, plus a base fee of €29–149/month. A 24/7 surcharge of 50–100% or a premium tariff.
02AI phone assistant (bhomy): Starter €89/month on annual billing with 700 included minutes, Pro €279/month with 3,000 included minutes; extra usage in packages of 100 minutes for €15. No per-call charge. Counted by the second.
03Rule of thumb: at 200–800 minutes/month an SMB typically pays a fifth to a seventh of the cost with the AI.
Reachability and wait time
01Answering service: real-world reachability 80–95%, with waits at peaks (Monday morning, after ad campaigns) regularly 30–120 seconds. 24/7 only on a premium tariff.
02AI phone assistant: 100% reachability, pickup after at most one ring, parallel calls with no queue. 24/7 is the default — no surcharge for nights or weekends.
Consistency and brand voice
01Answering service: changing agents depending on shift and load. Training depth drops as volume rises. Tone is only roughly steerable.
02AI phone assistant: identical greeting, identical tone, identical knowledge base on every call. The brand voice stays one voice — even at three in the morning.
Scaling at call peaks
01Answering service: peaks become a queue. More lines mean more staff — and a longer lead time for every scale-up.
02AI phone assistant: scales server-side. 1 or 100 simultaneous calls are the same product, at no surcharge and with no advance notice.
GDPR, data protection and confidentiality
01Answering service: a data-processing agreement under Art. 28 GDPR is standard. With providers that have offshore locations, standard contractual clauses (SCCs) are required. Professional confidentiality for privileged professions (doctor, lawyer, tax adviser) must be explicitly covered contractually.
02AI phone assistant (bhomy): data stored in Frankfurt am Main, a DPA, encrypted storage, purpose-bound retention. Call audio is not stored; the language-model providers, partly based in the USA, are disclosed in the DPA. For privileged professions, confidentiality undertakings under German and Austrian law are available.
03A common misconception: AI does not automatically mean "data in the US". An EU region is the default with European providers.
Multiple languages
01Answering service: typically German, English, occasionally French. Further languages mean dedicated shifts and higher prices.
02AI phone assistant: bhomy serves 50+ languages from day one, at no surcharge. Hotel chains and international practices benefit most.
Setup, onboarding and contract term
01Answering service: onboarding 1–4 weeks (briefing, script sign-off, training the agents). A minimum term of 6–12 months is common, and a minimum spend is typical.
02AI phone assistant (bhomy): live in under 24 hours; one-time setup €1,000 (Starter) or €2,000 (Pro), waived until November 2, 2026; minimum term one month with monthly billing.
Empathy and complex conversations
01Answering service: clearly superior for escalated complaints, sensitive matters or open negotiations — provided the agent strikes the right tone.
02AI phone assistant: for standard requests (appointment, information, order intake, call-back) on a par or better today. On escalations the AI transfers to a human — that's the honest recommendation.
04
Three worked examples from practice
Theory is theory. Here are three concrete call profiles from everyday SMB life, calculated with typical answering-service prices and the bhomy Starter and Pro plans. (Figures illustrative.)
Scenario A: trades business — 200 calls / 400 minutes per month
03bhomy Starter: €89/month on annual billing — the 400 minutes fall within the 700 included minutes (one call at a time).
04Saving: €390–511/month = 81–85%.
Scenario B: hotel reception — 600 calls / 900 minutes per month, 24/7
01Answering service, 24/7: 600 × €3.50 = €2,100/month plus base fee.
02bhomy Pro: €279/month on annual billing — the 900 minutes fall within the 3,000 included minutes, up to 3 calls at the same time.
03Saving: roughly €1,820/month = 87%, plus 50+ languages from day one.
Scenario C: medical or dental practice — 500 calls / 600 minutes per month
01Answering service with a confidentiality clause: 500 × €2.50 = €1,250/month plus base fee.
02bhomy Pro: €279/month on annual billing — the 600 minutes fall within the included volume, up to 3 calls at the same time, EU hosting + DPA included.
03Saving: roughly €970/month = 78%, plus Doctolib and Outlook/365 integration.
Average annual saving
Across the three scenarios the typical annual saving is around €4,700–21,800. Depending on the sector that's the equivalent of half to a full role freed up for higher-value work.
05
Quality: measurable or just a feeling?
Quality in a phone service is objectively measurable — even if the term sounds intuitively soft. The four most important metrics are answer rate, average response time, first-call resolution and accurate data capture. On all four, a well-configured AI phone assistant today is at or above the level of a good external secretariat — at markedly lower cost and with no variation across the time of day.
01Answer rate: AI 100%, answering service typically 80–95%.
02Response time: AI < 1 ring, answering service 5–30 seconds on average, far more at peaks.
03First-call resolution for standard requests: AI 85–95% with a good knowledge base, answering service 70–85%.
04Data capture: AI structured straight into the CRM/calendar, answering service by email note with downstream transfer.
"
An external answering service is only as good as its weakest shift. An AI is only as good as its configuration — and that is entirely in your hands.
06
When an external answering service is still the right choice
There are clear scenarios where a human phone service still beats the AI — and intellectual honesty demands naming them:
01Complaint handling with a high emotional component (e.g. insurance claims, bereavements).
02Active outbound telesales with individual negotiation — the AI can be used here, but depending on the sector it's regulatorily grey.
03Very small volumes under 50 minutes/month, where even an AI subscription doesn't pay off — a voicemail app with transcription is often enough.
04Firms and practices whose data-protection officer requires upstream human triage before an automated system steps in.
The hybrid model
The most robust solution for many businesses is hybrid: AI as the first level for standard requests, human escalation for complex cases. That way 80% of calls fall on the cheap AI volume and 20% go to a specialist or an internal team — at a total cost saving of typically 50–70% versus a pure answering service.
07
Migration path: from answering service to AI in five steps
If you're with an answering service today and weighing up whether a switch is worth it, don't do it in one go. The clean path:
01Create a call audit — document for four weeks which call types occur in what volume (appointment, information, complaint, sales). This provides the data for the hybrid model.
02An AI pilot in fringe hours — the AI first takes only the lunch break, evenings and weekends. The phone service stays active for core hours. Risk: minimal.
03Switch on the calendar/CRM integration — Doctolib, Outlook 365, HubSpot or your sector tool are connected, and the AI books directly instead of passing on notes.
04Configure the escalation path — the AI detects complaints and sensitive matters via keywords and routes to a human or a stored hotline. The hybrid kicks in.
05Scale or cancel — after 4–8 weeks of piloting, the call logs show whether the AI can carry the main load. Only then do you cancel the answering-service contract (mind the minimum term).
08
Sector spotlight: where the switch pays off most
01Hotels & guesthouses — international guests, high weekend load, 50+ languages from day one. Extra lever: direct reservation booking instead of OTA commission.
02Medical & dental practices — confidential triage, automatic Doctolib booking, 24/7 on-call queries. Saves reception staff 1–2 hours of phone work per day on average.
03Trades businesses — emergency detection, instant order intake including a photo-upload link, quote coordination. Converts calls lost over the lunch break directly into jobs.
04Law & tax firms — client triage with confidentiality, automatic appointment scheduling. Instead of €2.50 per call to the external service, the budget goes into client acquisition.
05Property managers — tenant queries around the clock on the emergency hotline; routine queries documented straight into the CRM.
09
Decision guide in one sentence
Rule of thumb
If more than 60% of your calls are standard requests (appointments, information, order intake, call-backs) and the monthly volume is over 100 minutes, switching to an AI phone assistant pays off in practically every case — usually with 70–90% cost saving and better reachability. For the remaining 10–20% of complex cases, human escalation stays the honest recommendation.
10
Common questions
Yes, in almost all SMB scenarios. At a typical volume of 200–800 minutes per month you pay between €89 (Starter, annual billing) and around €120 with minute packages with bhomy, or €279 on Pro for several simultaneous calls — with an answering service of the same reach you're at €400–2,100 monthly, depending on the 24/7 surcharge and per-call charge. The annual saving is typically between €3,000 and €20,000.
Replace your answering service on trial
Run bhomy in parallel with your current answering service during fringe hours. Live in under 24 hours, minimum term one month with monthly billing, setup waived until November 2, 2026. In 20 minutes we'll show you how to switch without risk.
