Nov 8, 2025

Is Teams Calling VoIP?

Microsoft Teams VoIP and landline: phone system alternative. VoIP calls Teams users/external. PSTN via calling plan or Direct Routing. Voicemail, call history. Replaces PBX. AMVIA.

Is Teams Calling VoIP?

Microsoft Teams VoIP and Landline Calling: Complete Phone System Alternative and Replacement Guide

Can Microsoft Teams function as a phone system and make calls to landlines? Microsoft Office 365 has many valuable elements, with one most widely utilised by businesses being Microsoft Teams application. Provides functionality for employees collaborate on projects, share files, arrange chats attend meetings. Question many organisations have is how Teams can function as phone system. Short answer is yes. Teams enable users make Voice over Internet Protocol (VoIP) calls. Users use functionality make VoIP calls any other Teams users, or send external link anyone, regardless whether they have Teams or not. Functionality makes collaboration communication quick easy, calls can scheduled advance or made as impromptu voice call. Two other options available allow Teams users receive make calls any mobiles or landline phones. Calls completed using public switched telephone network (PSTN). Organisation either add phone system calling plan their Teams subscription or utilise 'Direct Connect' functionality, which allows company connect their existing PSTN their Microsoft Teams accounts. First option provide new phone number users able access. Call functionality available within Teams feel comfortably familiar most users. All basic phone system features anticipate, such as voicemail seeing call history. Users initiate call based on name person they want contact or by dialling in number directly into integrated dialling pad features within Teams application. Organisations can decide which option feels best fit—direct route existing PSTN or purchase call plan. Budget, PSTN commitments factor decision. Remote work extent dictate utilisation external calling features. Meetings function provides dial-in landline option. AMVIA Teams phone system assessment, calling plan selection, PSTN integration, voicemail setup, training, 24/7 support.

Microsoft Teams as a Phone System: Overview and Capabilities

Microsoft Office 365 has many valuable elements, with one most widely utilised by businesses being Microsoft Teams application. Microsoft Teams provides functionality for employees collaborate on projects, share files, arrange chats and attend meetings.

One of questions many organisations have, though, is how Teams can function as phone system.

This guide explains Microsoft Teams as complete phone system alternative, VoIP calling, landline integration, and replacement strategy.

Is Teams Calling VoIP

Direct Answer: YES

The short answer is yes. Teams enable users make Voice over Internet Protocol (VoIP) calls.

VoIP Calling Options

Users can use this functionality make VoIP calls any other Teams users, or they can send external link anyone, regardless whether they have Teams or not.

VoIP calling advantages:

  • Internal Teams-to-Teams calls
  • External calls via link
  • No Teams installation required for external participants
  • Quick and easy collaboration
  • Scheduled or impromptu calling

VoIP and Scheduling Flexibility

This functionality makes collaboration and communication quick and easy, as calls can be scheduled in advance or made as impromptu voice call.

External Calling: PSTN Integration Options

Two Options for External Calling

In addition this, there are two other options available allow Teams users receive and make calls any mobiles or landline phones. Calls can be completed using public switched telephone network (PSTN).

Option 1: Phone System Calling Plan

An organisation can add phone system calling plan their Teams subscription. This first option will provide new phone number that your users will be able access.

Calling plan benefits:

  • New phone number assigned
  • User access to landlines/mobiles
  • Built-in calling functionality
  • Easy provisioning

Option 2: Direct Routing (Direct Connect)

Alternatively, organisations can utilise 'Direct Connect' functionality, which allows company connect their existing PSTN their Microsoft Teams accounts.

Direct Routing advantages:

  • Existing PSTN connection retained
  • No new phone system needed
  • Continuity maintained
  • Flexibility maximized

Basic Phone System Features in Teams

Familiar Phone System Functionality

Call functionality available within Teams should feel comfortably familiar most users. There are all basic phone system features you would anticipate.

Standard features:

  • Voicemail
  • Call history
  • Call initiation
  • Call management

Call Initiation Methods

Users can initiate call based on name person they want contact or by dialling in number directly into the level integrated dialling pad that features within Teams application.

Calling methods:

  • Search by contact name
  • Direct number dialling
  • Integrated dialling pad
  • One-click calling

Can Microsoft Teams Call Landline

Direct Answer: YES

It is possible dial external numbers using Teams application.

Decision Points for External Calling

Your company will need decide which option it feels is best fit - either direct routing existing PSTN or purchasing call plan which will provide phone number and allow external calls.

Decision factors:

  • Budget constraints
  • Existing PSTN contracts
  • Provider commitments
  • Long-term strategy

Remote Work as Determining Factor

Factors like extent that your workforce needs work entirely remotely will also likely dictate how much you choose utilise features available within Teams dial external numbers.

Considerations:

  • Remote work extent
  • Hybrid work models
  • Geographic distribution
  • Feature utilization

Dial-In Options for Landline Users in Meetings

Meeting Dial-In Capability

Meetings function also provides dial-in option for landline users. When any Teams user decides set up meeting, Teams will provide them with series choices that feed into auto-populated email invitation.

Audio-Only Dial-In Option

Teams environment will offer audio-only option will allow invitees who are not Teams subscribers or working from location without internet access dial in via landline.

Dial-in benefits:

  • Landline phone access
  • No internet required
  • Non-Teams users included
  • Audio-only option
  • Wide accessibility

Microsoft Teams as Phone System Alternative

Effective Phone System Replacement

In conclusion, Microsoft Teams can be effective alternative traditional phone system.

Key capabilities:

  • VoIP calling between users
  • External participant invitations
  • No software download required
  • Landline dial-in options
  • Meeting conferencing

Comprehensive Phone Provision

It can provide VoIP calling between users or invitation external participants without requiring them download Team software. Further this, call plan options are available and can route existing PSTN directly through Teams. Use Teams means that users can use application make external calls landlines and mobiles, effectively removing need for any other kind phone provision.

Teams replaces need for:

  • Traditional PBX systems
  • Separate phone lines
  • Additional phone hardware
  • Dual communication platforms

AMVIA's Microsoft Teams Phone System Services

Teams Phone System Assessment

AMVIA provides comprehensive Microsoft Teams phone system assessment:

  • Current phone system evaluation
  • Teams phone fit analysis
  • VoIP and PSTN needs assessment
  • Migration planning
  • Cost-benefit analysis

Calling Plan and Routing Strategy

Complete calling plan selection and configuration:

  • Calling plan vs Direct Routing analysis
  • PSTN integration planning
  • Phone number provisioning
  • Route configuration
  • Budget optimization

VoIP and Landline Setup

Complete VoIP and external calling configuration:

  • VoIP setup and testing
  • Landline dial-in configuration
  • Meeting conferencing setup
  • Audio-only options
  • Functionality verification

Phone System Migration and Training

Complete migration from legacy systems:

  • Existing phone system migration
  • Number porting assistance
  • User training and adoption
  • Voicemail setup
  • Feature enablement

24/7 Teams Phone System Support

AMVIA delivers 24/7/365 Teams phone support:

  • VoIP troubleshooting
  • PSTN call support
  • External calling assistance
  • Meeting dial-in support
  • Performance optimization

Next Steps: Implementing Teams as Your Phone System

Start assessing current phone system. What costs? What limitations? What features needed?

Next, evaluate Teams phone fit. Can Teams replace system? What calling plan needed? What PSTN integration required?

Then, plan migration. What timeline appropriate? What user training needed? What disruption acceptable?

Finally, implement and activate. Select calling plan or Direct Routing. Provision phone numbers. Migrate users. Train organization. Contact AMVIA begin Teams phone system implementation.

Need expert help implementing Microsoft Teams as your phone system? Contact AMVIA specialists: 0333 733 8050 (direct to experts, no voicemail) or request consultation. We provide comprehensive Microsoft Teams phone system assessment, VoIP and PSTN configuration, calling plan selection or Direct Routing setup, landline dial-in enablement, user training, phone system migration support, 24/7 managed support. Discover how AMVIA's human-first approach delivers Teams phone solutions replacing traditional systems—unified communications platform enabling your organization eliminate separate phone systems while maintaining landline/mobile calling, meeting conferencing, voicemail, and all essential phone features in single integrated Teams environment.

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