Heilo vs Microsoft Teams Voicemail

See also: Heilo vs Google Voice for Business | Smart Voicemail vs Traditional Comparison | How Much Does an Answering Service Cost?

TL;DR: Microsoft Teams Voicemail is an M365 ecosystem feature — solid for enterprises already deep in Teams. Heilo.io is a dedicated AI voicemail service for small businesses with full transcription, SMS, and lead scoring. If you're not in the M365 ecosystem — Heilo.io is simpler, faster to set up, and built for mobile-first businesses.

The Scenario: "Just Use Teams Voicemail"

Your business already has Microsoft 365. Your accountant or IT consultant suggests: "You're already paying for Teams — just use the built-in voicemail." It sounds logical. But here's what "just use Teams Voicemail" actually means — and what it costs compared to a dedicated solution.

What Microsoft Teams Voicemail Includes

Teams Voicemail is part of the Microsoft 365 ecosystem with Teams Phone System:

What you get:

• Voicemail recording for Teams phone numbers
• Automatic transcription (via Azure Cognitive Services)
• Email notification with transcription and audio attachment
• Customizable greeting message
• Integration with Teams app and Outlook

What you don't get:

• SMS delivery to your mobile phone
• AI-powered lead scoring or urgency detection
• A dedicated voicemail dashboard designed for lead management
• Works only with Teams Phone numbers — not your regular cell phone
• Multilingual transcription is limited (primarily English-optimized)

Requirements: Microsoft 365 Business license ($12/user/month) + Teams Phone add-on ($8–10/user/month). Total: ~$20+/month per user just for the voicemail-capable stack.

What Heilo.io Offers

Heilo.io is a dedicated AI voicemail and lead capture service built for small businesses:

• AI transcription powered by Gemini 2.5 Flash — multilingual, high accuracy
• Lead scoring — every message rated 1–10 based on urgency and value
• Instant SMS delivery — full transcription on your phone within seconds
• Works with any mobile phone — no Teams ecosystem, no app, no new numbers
• Web dashboard — purpose-built for reviewing calls, transcriptions, and lead scores
• 24/7 availability — included in the base price

Price: $19/month for the entire business — not per user.

Detailed Comparison

Feature	Teams Voicemail	Heilo.io
Transcription engine	Azure Cognitive Services	Gemini 2.5 Flash (AI)
Transcription languages	⚠️ English-primary, limited others	✅ Multilingual (EN, PL, DE, ES, FR...)
SMS to mobile phone	❌	✅ Instant
Email notification	✅	✅
Lead scoring (1–10)	❌	✅
Dedicated voicemail dashboard	❌ (buried in Teams/Outlook)	✅ Purpose-built
Works with regular cell phone	❌ Teams Phone only	✅ Any phone via forwarding
Requires M365 license	✅ Yes	❌ No
Requires IT setup	✅ Yes (Teams admin)	❌ 5-minute self-setup
Mobile-first design	❌ Desktop/Outlook-first	✅ SMS + mobile dashboard
AI greeting generation	❌	✅ (ElevenLabs integration)
Starting price	~$20/user/month	$19/month (whole business)

The Hidden Cost of Teams Voicemail

"We already pay for Microsoft 365" is the most common argument for Teams Voicemail. But the true cost is often higher than expected:

Cost Component	Teams Voicemail Setup	Heilo.io
M365 Business Basic	$6/user/month	Not needed
Teams Phone add-on	$8–10/user/month	Not needed
Number porting or new number	$0–$50 (one-time)	Not needed
IT admin time for setup	2–8 hours @ $50–100/hr	5 minutes, self-service
Training for non-technical users	1–2 hours	None needed
Monthly cost (1 user)	~$16–20/month	$19/month
Monthly cost (3 users)	~$48–60/month	$19/month
Monthly cost (5 users)	~$80–100/month	$19/month

For a single user, the costs are comparable. But for 3+ users, Heilo.io is 2–5× cheaper because it's a flat business-wide fee, not per-user pricing.

Important note: If you already use Microsoft 365 for email, Office apps, and Teams meetings, those costs are sunk — you're paying them regardless. The incremental cost for Teams Voicemail is the Teams Phone add-on ($8–10/user/month) plus IT setup time. Still, you don't get SMS delivery, lead scoring, or a mobile-first experience.

When Teams Voicemail Makes Sense

Teams Voicemail is the right choice if:

• Your entire company lives in the M365 ecosystem — Teams for calls, Outlook for email, SharePoint for files, and you want everything in one place
• You have an IT department or managed service provider who can handle Teams Phone provisioning and ongoing maintenance
• Your team works from desks — Teams Voicemail is designed for office-centric workflows, not field service
• Integration with Outlook is critical — voicemails appear as emails, which works well if your team processes everything through Outlook
• You have 20+ users — at scale, UCaaS consolidation with Vonage or Teams Phone starts making financial sense

When to Choose Heilo.io

Heilo.io is the better choice if:

• You work primarily from a mobile phone — field service, trades, solo practitioners. Heilo.io sends SMS transcriptions instantly, no app or Outlook needed
• You don't use Microsoft 365 Business Voice — if you're on M365 Basic or Personal, adding Teams Phone just for voicemail is expensive
• You need lead scoring — knowing which callback is worth $5,000 vs a general inquiry saves you hours of callback time
• You want 5-minute setup — no IT admin, no number porting, no configuration. Type a forwarding code and you're live
• You run a small team (1–10 people) — $19/month flat vs $80–100/month for 5 Teams Phone licenses

Can You Use Both?

Absolutely — and many businesses do:

• Microsoft Teams handles internal communication: team chat, video meetings, file sharing, and office desk phones
• Heilo.io handles external client calls: captures missed calls on personal mobile phones, provides AI transcription with lead scoring, covers after-hours inquiries

This is not an either/or decision. Teams is for internal productivity. Heilo.io is for client-facing lead capture. They complement each other perfectly.

FAQ

I already pay for M365 — isn't Teams Voicemail free?

No. M365 Business Basic ($6/user/month) does not include calling or voicemail. You need the Teams Phone add-on ($8–10/user/month) to enable voicemail. If you're not already paying for Teams Phone, the voicemail isn't "free" — it's an additional $8–10/user/month.

Does Heilo.io integrate with Microsoft Teams?

Heilo.io is a standalone service that works via call forwarding. Transcriptions arrive as SMS and are available in the web dashboard. It doesn't plug directly into Teams — but since it captures calls your Teams setup misses (mobile, after-hours), it complements Teams rather than replacing it.

What about transcription accuracy — is Gemini better than Azure?

Both are capable AI services. Gemini 2.5 Flash (Heilo.io) excels at multilingual transcription and handles accents, fast speech, and emotional callers very well. Azure Cognitive Services (Teams) is optimized primarily for English. For multilingual businesses, Heilo.io has a clear advantage.

Can I keep my existing phone number with Heilo.io?

Yes — Heilo.io works via call forwarding from your existing number. You keep your number, your carrier, and your current phone. No porting, no new numbers, no changes to your existing setup.

Summary

Teams Voicemail is a solid feature within the Microsoft ecosystem — but it's designed for office-centric teams, not mobile-first businesses. It lacks SMS delivery, lead scoring, and easy setup. For a small service business operating primarily from mobile phones, Heilo.io delivers a better experience at $19/month flat — without requiring Microsoft licenses, IT administration, or Teams Phone add-ons.

• Heilo.io