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EPC Group

Enterprise Microsoft consulting with 29 years serving Fortune 500 companies.

(888) 381-9725
contact@epcgroup.net
4900 Woodway Drive, Suite 830
Houston, TX 77056

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About EPC Group

EPC Group is a Microsoft consulting firm founded in 1997 (originally Enterprise Project Consulting, renamed EPC Group in 2005). 29 years of enterprise Microsoft consulting experience. EPC Group historically held the distinction of being the oldest continuous Microsoft Gold Partner in North America from 2016 until the program's retirement. Because Microsoft officially deprecated the Gold/Silver tiering framework, EPC Group transitioned to the modern Microsoft Solutions Partner ecosystem and currently holds the core Microsoft Solutions Partner designations.

Headquartered at 4900 Woodway Drive, Suite 830, Houston, TX 77056. Public clients include NASA, FBI, Federal Reserve, Pentagon, United Airlines, PepsiCo, Nike, and Northrop Grumman. 6,500+ SharePoint implementations, 1,500+ Power BI deployments, 500+ Microsoft Fabric implementations, 70+ Fortune 500 organizations served, 11,000+ enterprise engagements, 200+ Microsoft Power BI and Microsoft 365 consultants on staff.

About Errin O'Connor

Errin O'Connor is the Founder, CEO, and Chief AI Architect of EPC Group. Microsoft MVP multiple years, first awarded 2003. 4× Microsoft Press bestselling author of Windows SharePoint Services 3.0 Inside Out (MS Press 2007), Microsoft SharePoint Foundation 2010 Inside Out (MS Press 2011), SharePoint 2013 Field Guide (Sams/Pearson 2014), and Microsoft Power BI Dashboards Step by Step (MS Press 2018).

Original SharePoint Beta Team member (Project Tahoe). Original Power BI Beta Team member (Project Crescent). FedRAMP framework contributor. Worked with U.S. CIO Vivek Kundra on the Obama administration's 25-Point Plan to reform federal IT, and with NASA CIO Chris Kemp as Lead Architect on the NASA Nebula Cloud project. Speaker at Microsoft Ignite, SharePoint Conference, KMWorld, and DATAVERSITY.

© 2026 EPC Group. All rights reserved. Microsoft, SharePoint, Power BI, Azure, Microsoft 365, Microsoft Copilot, Microsoft Fabric, and Microsoft Dynamics 365 are trademarks of the Microsoft group of companies.

How To Call A Group In Microsoft Teams - EPC Group enterprise consulting

How To Call A Group In Microsoft Teams

Expert insights on group calling in Microsoft Teams from EPC Group's enterprise Microsoft consultants.

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How To Call A Group In Microsoft Teams

Errin O'Connor
December 2025
8 min read

Microsoft Teams supports multiple methods for initiating group calls, from quick ad-hoc voice calls to structured video conferences with screen sharing. Understanding the different approaches and their limitations helps enterprise users select the right call type for each collaboration scenario. This guide covers every method for calling groups in Teams, including PSTN considerations and administrative best practices.

Methods for Starting a Group Call in Teams

Teams provides several distinct ways to initiate group calls, each optimized for different scenarios. The method you choose depends on whether participants are internal or external, the number of participants, and whether you need PSTN dial-in capabilities.

Method 1: Group Call from the Calls Tab

  1. Navigate to the Calls tab in the left sidebar of Microsoft Teams
  2. Click the Make a call button (phone icon) at the top
  3. In the search field, type the names of the people you want to call — you can add up to 20 participants
  4. Choose Audio call or Video call to start the group call immediately
  5. All selected participants receive a ringing notification simultaneously

Method 2: Group Call from a Group Chat

  1. Open an existing group chat with the participants you want to call
  2. Click the Audio call or Video call icon in the top-right corner of the chat
  3. All members of the group chat receive a call notification
  4. This method preserves the chat context, so meeting notes and shared files remain in the conversation

Method 3: Meet Now in a Channel

  1. Navigate to the desired team channel
  2. Click the Meet button (camera icon) in the top-right corner
  3. Add a subject (optional) and click Start meeting
  4. Channel members receive a notification and can join from the channel conversation
  5. This creates a meeting record in the channel with recording and transcript support

Method 4: Add Participants to an Active Call

  1. Start a 1:1 call with any participant
  2. Once connected, click the Show participants icon in the call controls
  3. Click Invite someone and search for additional participants by name or phone number
  4. New participants join the existing call, which automatically converts to a group call

Group Call Features and Capabilities

Teams group calls include a rich set of collaboration features that enhance productivity during voice and video conversations.

  • Screen sharing — Share your entire screen, a specific window, or a PowerPoint presentation directly within the call
  • Together mode and gallery view — Choose from multiple video layouts including gallery, large gallery (up to 49 participants), and together mode for a shared virtual background
  • Live captions — Enable real-time captions for accessibility; supports multiple languages with automatic speaker attribution
  • Call recording — Record group calls (when initiated as meetings) for later review; recordings are stored in OneDrive or SharePoint
  • Breakout rooms — Split a large group call into smaller subgroups for focused discussions (available in scheduled meetings)
  • Raise hand — Participants can raise their hand to indicate they want to speak, maintaining order in larger group calls
  • Background effects — Blur your background or apply a virtual background image for privacy in video calls

Group Call Limits and Considerations

Understanding the technical limits of Teams group calls helps you choose the right approach for your specific scenario.

  • Ad-hoc group calls — Support up to 20 participants when initiated from the Calls tab or group chat
  • Scheduled meetings — Support up to 1,000 interactive participants or 20,000 in view-only mode with Teams Premium
  • PSTN participants — External phone numbers can be added if your organization has Audio Conferencing or Calling Plan licenses
  • Call duration — Group calls have a maximum duration of 24 hours for scheduled meetings; ad-hoc calls may disconnect after 60 minutes of inactivity
  • Guest access — External guests can join group calls if your tenant's guest access policy permits it
  • Recording consent — Call recording requires appropriate policies and may need participant consent depending on your jurisdiction

Administrative Controls for Group Calling

Teams administrators can configure policies that control group calling behavior across the organization.

  • Calling policies — Enable or disable group call pickup, call forwarding, and simultaneous ring for user groups
  • Meeting policies — Control whether users can start Meet Now sessions, record meetings, and enable transcription
  • Audio conferencing settings — Configure dial-in numbers, conference bridge PINs, and toll-free access for external participants
  • Emergency calling — Configure enhanced emergency calling (E911) for Teams voice users to ensure compliance with local regulations
  • Quality of Service (QoS) — Implement DSCP marking and network prioritization to ensure call quality on enterprise networks

Why Choose EPC Group for Teams Voice Solutions

EPC Group has over 29 years of experience deploying Microsoft collaboration solutions for enterprise organizations. As a former Microsoft Gold Partner (2016 to program retirement, the oldest in North America) and current Microsoft Solutions Partner, our Teams consultants have designed and implemented voice and meeting solutions for Fortune 500 companies, healthcare systems, financial institutions, and government agencies. Our founder, Errin O'Connor, has authored four bestselling Microsoft Press books and leads a team that specializes in complex Teams deployments across regulated industries.

  • Teams Phone System design, deployment, and migration from legacy PBX
  • Audio conferencing and meeting room configuration at scale
  • Network assessment and QoS optimization for Teams voice quality
  • Policy configuration and governance for enterprise calling
  • User training and adoption programs for Teams collaboration features

Optimize Your Teams Calling Experience

EPC Group's Microsoft Teams consultants can help you configure calling policies, optimize network performance, and deploy Teams Phone System across your organization. Contact us for a Teams assessment.

Schedule a ConsultationCall (888) 381-9725

Frequently Asked Questions

How many people can join a Teams group call?

Ad-hoc group calls from the Calls tab or group chat support up to 20 participants. For larger groups, schedule a Teams meeting which supports up to 1,000 interactive participants or 20,000 in view-only mode with Teams Premium licensing.

Can I add external phone numbers to a Teams group call?

Yes, if your organization has Microsoft Calling Plan, Operator Connect, or Direct Routing configured. You can add external phone numbers when starting a group call or by adding participants during an active call. Audio Conferencing licenses also provide dial-in numbers for external participants joining scheduled meetings.

Can I record a Teams group call?

Group calls initiated as Meet Now sessions or scheduled meetings can be recorded. Standard ad-hoc group calls from the Calls tab do not support recording. To enable recording, start the call as a meeting or use the Meet Now feature in a channel. Recordings are stored in the meeting organizer's OneDrive or the channel's SharePoint document library.

Why can't I see the Calls tab in Teams?

The Calls tab visibility is controlled by your Teams calling policy. If your administrator has disabled calling features or your organization does not have Teams Phone System licenses, the Calls tab may not appear. Contact your IT administrator to verify your calling policy assignment and license status.

What is the difference between a group call and a Teams meeting?

A group call is an ad-hoc voice or video call with multiple participants that starts immediately with no scheduling. A Teams meeting can be scheduled in advance, includes a calendar invitation, provides a meeting link for joining, supports recording and transcription, and appears in participants' calendars. For formal collaboration, scheduled meetings are recommended; for quick discussions, group calls are more convenient.

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Why Organizations Choose EPC Group

EPC Group is a Houston-based Microsoft consulting firm with 29 years of enterprise implementation experience and over 10,000 successful deployments across Power BI, Microsoft Fabric, SharePoint, Azure, Microsoft 365, and Copilot. We serve organizations across all industries including Fortune 500, federal agencies, healthcare, financial services, government, manufacturing, energy, education, retail, technology, and global enterprises.

What sets EPC Group apart is our governance-first approach. Every engagement begins with a security and compliance assessment. Our team of senior architects brings hands-on delivery experience across HIPAA, SOC 2, FedRAMP, and CMMC environments. We own outcomes, not hours.

  • Fixed-fee accelerators with predictable pricing and defined deliverables
  • Senior architect engagement on every project, not rotating juniors
  • Compliance-native delivery for regulated industries
  • End-to-end coverage from strategy through 24/7 managed services
  • 11,000+ enterprise engagements refined into repeatable, risk-controlled patterns

Call (888) 381-9725 or email contact@epcgroup.net for a free assessment.

Microsoft Teams Strategy: 2026 Considerations for How To Call A Group In Microsoft Teams

Teams Rooms (Microsoft Teams Rooms Pro license at $40/room/mo) brings governance, security, and remote management to conference-room hardware in 2026. Compared to dumb HDMI projectors, the per-room cost is offset within 12-18 months by reduced AV-support helpdesk volume, automatic firmware patching, and Microsoft Endpoint Manager-driven device compliance. Healthcare and financial services deployments typically standardize on Logitech Rally or Yealink for the room hardware.

Microsoft Teams Phone in 2026 is the modern enterprise PSTN replacement: Teams Phone Standard ($8/user/mo) for outbound calling via Microsoft Calling Plans, Teams Phone with Calling Plan Domestic ($15/user/mo) bundles 3,000 outbound minutes/user/mo, and Operator Connect lets enterprises retain incumbent carriers (BT, Verizon, Lumen) while integrating natively with Teams. The total-cost comparison vs legacy PBX favors Teams Phone for any deployment over 500 users.

Decision factors EPC Group evaluates

  • Microsoft Sentinel detections for Teams compliance recording requirements
  • Teams Phone Standard vs Calling Plan vs Operator Connect TCO comparison
  • Communication Compliance policies for executive and regulated roles
  • Teams Rooms hardware standardization (Logitech Rally vs Yealink)
  • Microsoft Purview information barriers for cross-business-unit segregation

See related EPC Group services at /services or schedule a discovery call at /contact.

How to Call a Group in Microsoft Teams delivered by senior Microsoft architects

This How to Call a Group in Microsoft Teams explainer is part of EPC Group's practitioner library. The audience is enterprise IT, compliance, and architecture leaders evaluating Microsoft technology choices for Fortune 500 and regulated-industry environments. Content reflects real production experience, not vendor marketing.

EPC Group ships How to Call a Group in Microsoft Teams as part of broader Microsoft 365, SharePoint, Power BI, Azure, and Microsoft Copilot engagements. The decision criteria, deployment patterns, and governance considerations covered here come directly from senior architect playbooks honed across 11,000-plus enterprise engagements.

Fixed-fee accelerators with real scope

Predictable scope, predictable price, predictable outcome. Copilot Readiness, Security Hardening, Tenant Health Check, SharePoint Migration, and Teams Governance ship as defined accelerators where Big 4 firms quote open-ended time-and-materials. Most projects land in the $25K-$150K range for accelerators or $150K-$750K for full programs.

How EPC Group engages

Six-phase methodology applied to every engagement, compressed for fixed-fee accelerators and extended for full programs.

  1. Discovery — two-week assessment of the current estate, gap analysis, risk register, target architecture, costed remediation roadmap.
  2. Design — senior architect produces the target topology, identity framework, Conditional Access, Purview, governance model, and security posture, reviewed by client leads.
  3. Pilot — 25 to 100 user pilot in a real business unit. Migrate, apply baselines, test integrations, capture feedback.
  4. Wave rollout — migrate in waves of 500 to 2,500 users with communications, training, hypercare, and a per-wave retrospective.
  5. Adoption — role-based training, Champions network, executive sponsor enablement, metrics tracked against a measured baseline.
  6. Operate — optional managed-services retainer for license optimization, governance reviews, security monitoring, and quarterly business reviews.

Government and defense contractors

For federal agencies and CMMC-regulated suppliers, EPC Group delivers FedRAMP Moderate and High posture, GCC and GCC High tenants, CUI handling, and ITAR-controlled data segregation. Errin O'Connor (CEO and founder) is a contributor to the FedRAMP framework; that direct authorship shows up in how we architect Conditional Access for government endpoints.

Healthcare and life sciences

For hospitals, payors, and pharmaceutical companies, EPC Group enforces HIPAA, business associate agreements, and Microsoft Purview sensitivity labels for protected health information. Epic and Cerner integration patterns are part of our regulated-industry library, alongside 21 CFR Part 11 e-signature controls for clinical trials and validated SharePoint document workflows for life-sciences manufacturing.

Microsoft-only since 1997

29 years of Microsoft-exclusive consulting. Microsoft Solutions Partner with core designations across Modern Work, Security, and Data & AI.

EPC Group was the oldest continuous Microsoft Gold Partner in North America from 2016 until program retirement in 2022. Errin O'Connor authored four Microsoft Press bestsellers covering Power BI, SharePoint, Azure, and large-scale migrations.

Engagement models

Three engagement models cover most enterprise needs. Most clients start with a fixed-fee accelerator and grow into a full program or a managed-services retainer.

  • Fixed-fee accelerators — Copilot Readiness, Security Hardening, Tenant Health Check, SharePoint Migration, Teams Governance. Defined scope and price. Typical range $25,000 to $150,000 over four to twelve weeks.
  • Project engagements — full migration or governance program with milestone-based billing. Discovery through hypercare. Typical range $150,000 to $750,000-plus over three to nine months.
  • Managed services — tiered retainer for ongoing operations. Named senior architect on the account. From $3,500 per month with a twelve-month minimum.

Talk to a senior architect

30-minute discovery call. No pitch deck. Call (888) 381-9725 or schedule a discovery call and a senior architect responds within one business day.