AI answering services handle inbound calls—greetings, FAQs, lead capture, scheduling, and transfers—so humans are not tied to every ring. US SMBs, clinics, law firms, and home services buy this to cover after-hours and overflow without a full call-center build.
Score voice quality, handoff to humans, calendar/CRM integrations, knowledge accuracy, and pricing honesty (per-minute vs per-seat vs hybrid human backup).
Fit map: Smith.ai and similar for hybrid AI+human professional services; Rosie/Goodcall-class tools for SMB after-hours; Dialpad/UCaaS AI when you want answering inside an existing phone stack; vertical specialists for healthcare/legal intake.
Shortlist with the cards, then test live transfer quality. For full autonomous agents in contact centers, see AI voice agents.
Browse 12 providers
Filter by team size or budget. Each card includes starting price (or Custom when list pricing is unpublished), highlights, pros and cons, and a full profile drawer.
Nextiva
Top Pick
Unified communications + CX workflows built for scale without chaos.
★
4.8 (scores from published listings)
Starting price
$15.00
per user/mo (annual)
Best for
Scaling SMBs & Enterprise
The 'Apple of VoIP'. It balances deep enterprise features (analytics, CRM) with an interface that doesn't require an IT degree.
By the Telecom Audit Advisory BoardUpdated August 5, 2026
Quick picks
Smith.ai: Hybrid AI + humans when containment alone is too risky.
Rosie: Home-services and local booking-driven inbound.
Dialpad Ai Receptionist: Already on Dialpad and want native AI coverage.
OpenPhone: Lean startups wanting modern shared numbers plus AI assist.
Pricing caveats
Many AI answering prices are Custom or usage/plan hybrids—per-minute, per-call, or bundled buckets. UCaaS AI receptionist features may be add-ons. Model transfer rates; cheap AI that dumps angry callers to voicemail is not savings. Leave cta_link empty unless a real affiliate exists.
Published plan pricing
These figures are verified by our editorial team. Prices below reflect the plans we track, not introductory marketing rates. Always confirm taxes, regulatory recovery fees, and add-ons on the quote.
Provider
Starting Price
Plans on File
Nextiva
$15.00 per user/mo (annual)
Core: $15.00/user/mo
Engage: $25.00/user/mo
Scale: $75.00/user/mo
OpenPhone
$15.00 per user/mo (annual)
Starter: $15.00/user/mo
Business: $23.00/user/mo
Scale: $35.00/user/mo
Smith.ai
Custom per plan / usage
Usage / Custom: Custom
Rosie
Custom per mo / usage
Usage / Custom: Custom
Goodcall
Custom per mo (quote)
Usage / Custom: Custom
Dialpad Ai Receptionist
Custom add-on / plan-based
Usage / Custom: Custom
RingCentral AI Receptionist
Custom add-on / plan-based
Usage / Custom: Custom
My AI Front Desk
Custom per mo (quote)
Usage / Custom: Custom
CloudTalk AI Agent
Custom add-on / plan-based
Usage / Custom: Custom
Dialzara
Custom per mo (quote)
Usage / Custom: Custom
Phone.com
Custom per user/mo (quote)
Usage / Custom: Custom
Slang.ai
Custom per location / quote
Usage / Custom: Custom
Scenario verdicts
Your situation
Start here
Why
Law firm intake after hours
Smith.ai
Hybrid escalation
Intake workflows
Professional services fit
Restaurant ordering line
Slang.ai
Hospitality vertical
Ordering flows
Location rollout path
Clinic scheduling overflow
My AI Front Desk
Appointment focus
Front-desk automation
SMB packaging
Nextiva shop adding AI coverage
Nextiva
UC continuity
Support reputation
CX packaging options
Five capabilities that change buying outcomes
Pressure-test these on your shortlist—what each capability does, and the buyer outcome it unlocks.
Natural greeting & intent capture
Callers should feel understood on the first turn—name, reason, urgency—without endless menus.
Buyer outcome: higher completion rates and cleaner lead records. Test with real accents and noisy environments.
Human handoff & escalation rules
AI must transfer warm—with context—to staff or a answering service. Dead-end bots create angry callbacks.
Buyer outcome: define escalation paths before go-live; listen to transfer recordings in the trial.
Scheduling and CRM writeback
Booking and CRM updates are where ROI shows up. Calendar conflicts and duplicate leads kill trust fast.
Buyer outcome: POC your real calendar/CRM, not a demo sandbox only.
Knowledge accuracy & hallucination controls
FAQ answers must stay inside approved content. Invented policies are worse than a missed call.
Buyer outcome: require source-grounding and an easy update path for scripts.
Pricing model clarity
Per-minute, per-call, seat bundles, and human-backup overages change unit economics. “Unlimited” usually is not.
Buyer outcome: model a busy week including overflow to humans before you sign.
Frequently asked questions
AI answering service vs live answering service?
Live services use humans (sometimes overseas, sometimes US-based) for every call; AI services automate first-line handling; hybrids mix both. Cost, accent preferences, and complexity tolerance drive the choice.
Hybrids like Smith.ai appeal when you want automation with a safety net. Pure AI wins on marginal cost if your FAQs are structured.
Pilot both styles on overflow before replacing your main greeting.
Will AI replace my receptionist entirely?
Sometimes for narrow FAQ/scheduling lines; rarely for high-empathy or complex intake without humans on call. Most successful deployments are AI-first with human escape hatches.
Plan staffing for exceptions and VIP callers. Communicate the model to customers if required by your brand.
Revisit quarterly as accuracy and your call mix change.
How do I measure success in the first 30 days?
Track answered rate, containment, average time to escalation, booking rate, and caller complaints. Compare missed-call volume against your baseline.
Listen to a sample of transferred and abandoned calls weekly. Numbers without audio review hide failure modes.
Set a kill criterion before launch so you are not emotionally locked into a bad fit.
Can AI answering work with my existing phone system?
Many services forward from your current numbers or integrate via SIP/API with UCaaS platforms. Native Dialpad/RingCentral/Nextiva options reduce vendor count if you already pay those seats.
Test caller ID, voicemail fallback, and business-hours schedules end to end.
Avoid double-greetings and loops—diagram the call path on a whiteboard before go-live.
What about HIPAA and sensitive industries?
If PHI may be spoken, require appropriate agreements and vendor controls in writing. Many SMB AI tools are not automatic HIPAA solutions.
Train the agent not to over-collect sensitive data. Consider human-only paths for clinical triage.
Involve compliance before marketing 'AI nurse' style claims.
How is this different from AI voice agents?
AI answering services are packaged for front-desk/receptionist outcomes—often with SMB onboarding. AI voice agent platforms are builder/enterprise toolkits for custom conversational automation inside contact centers or products.
If you need a configurable enterprise agent with tool calling and CCaaS integration, see /compare/ai-voice-agents.
If you need someone to answer the main line Monday morning, stay on this page.
What pricing traps should I expect?
Per-minute overages, per-call overages, premium bilingual fees, after-hours multipliers, and CRM add-ons. UCaaS AI packs may require higher base seats.
Ask for a sample invoice at 1.5× your expected volume. Clarify unused-bucket rollover policies.
Custom pricing is common—do not trust a tweeted rate card alone.
How should we introduce AI to callers?
Be honest when required and always provide a path to a human. Some brands disclose AI upfront; others focus on fast resolution—legal/brand teams should decide.
Monitor early calls for tone mismatches with your brand voice. Adjust greetings faster than you adjust vendors.
Internal staff should know how to take over cleanly when callers ask for a person.
