Callis vs Microsoft Teams Phone
Microsoft Teams Phone adds calling to the Teams platform, but someone on your team still needs to pick up the phone. Callis is a managed AI receptionist that answers every call for your business 24/7 — no missed calls, no voicemail, no staff scheduling.
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Quick Overview
What is Microsoft Teams Phone?
Microsoft Teams Phone is a cloud-based phone system add-on for Microsoft 365 that brings business calling into the Teams platform. It offers auto-attendant, call queues, voicemail, and integration with the broader Microsoft ecosystem. However, it is a phone infrastructure tool that still requires human staff to answer incoming calls.
Where Microsoft Teams Phone does well
Deep integration with the Microsoft 365 ecosystem
Very affordable at $8/user/month as a Teams add-on
Auto-attendant and call queue functionality
Familiar interface for organizations using Microsoft Teams
Best for
Choose Microsoft Teams Phone if your organization is already on Microsoft 365 and needs an affordable way to add business calling to Teams for your employees.
Where Callis wins
AI answers every call 24/7 — no one needs to be at their desk
Flat $399/mo with no per-user fees regardless of organization size
Fully managed service with all integrations handled for you
80% of callers cannot tell they are speaking with AI
Natural conversations instead of auto-attendant menus and call queues
Best for
Choose Callis if you need every inbound call answered live 24/7 by an AI receptionist instead of routing callers through auto-attendant menus and call queues.
Feature Comparison
A detailed side-by-side look at Callis vs Microsoft Teams Phone
| Feature | Callis | Microsoft Teams Phone |
|---|---|---|
| Call Handling | ||
| 24/7 Call Answering | AI answers every call automatically | Requires staff to answer or routes to voicemail |
| Auto-Attendant | AI receptionist with natural conversation | Phone menu system with call queues |
| After-Hours Coverage | AI answers 24/7 including nights and weekends | Voicemail or custom routing after hours |
| Setup & Management | ||
| Fully Managed Service | Yes | No |
| Staff Required | No — AI replaces the receptionist | Yes — humans must answer queued calls |
| IT Admin Required | No | Yes — requires Microsoft 365 admin setup |
| Pricing | ||
| Monthly Cost | $399/mo flat rate | Starting at $8/user/mo add-on (requires Microsoft 365) |
| Cost for 24/7 Coverage | $399/mo total | Staff salaries plus Microsoft 365 and Teams Phone licenses |
| Integrations | ||
| CRM Integration | Managed for you | Integrates with Microsoft ecosystem |
| Calendar Booking | Yes | Through Microsoft Outlook integration |
| Custom Workflows | Handled by Callis team | Requires Power Automate or admin configuration |
| Core Purpose | ||
| Primary Function | AI receptionist that answers calls | Phone add-on for Microsoft Teams platform |
| Best For | Businesses that need calls answered without staff | Microsoft 365 organizations needing business calling |
Why Businesses Switch from Microsoft Teams Phone to Callis
Key reasons businesses switch from Microsoft Teams Phone to Callis
Call Queues Still Need Someone to Answer
Microsoft Teams Phone routes calls to queues, but when your team is busy in meetings or away, calls go to voicemail. Callis answers every call with AI automatically.
No IT Admin Required
Microsoft Teams Phone requires Microsoft 365 admin configuration, call plan setup, and ongoing management. Callis is a fully managed service that handles everything for you.
Replace Voicemail With Real Conversations
Teams Phone sends unanswered calls to voicemail. Callis answers every call live with AI that sounds human, takes messages, and books appointments.
Flat Rate vs Growing Per-User Costs
Teams Phone costs $8 per user per month plus Microsoft 365 licensing plus staff salaries. Callis is a flat $399/mo that replaces the receptionist entirely.
Simple, Transparent Pricing
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Callis vs Microsoft Teams Phone FAQ
Common questions about choosing between Callis and Microsoft Teams Phone
Call Queues and Voicemail Are Not Customer Service
Microsoft Teams Phone routes calls. Callis answers them. Every call, every time, 24/7 with AI that has real conversations.
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