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EPC Group

Enterprise Microsoft consulting with 29 years serving Fortune 500 companies.

(888) 381-9725
contact@epcgroup.net
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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. Microsoft Gold Partner from 2003–2022 — the oldest Microsoft Gold Partner in North America — and currently a Microsoft Solutions Partner with six designations: Data & AI, Modern Work, Infrastructure, Security, Digital & App Innovation, and Business Applications.

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 for multiple years starting 2002–2003. 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.

Back to Blog

What Can Unified Communications Merge?

Errin O\'Connor
December 2025
8 min read

Unified Communications (UC) merges multiple communication channels -- voice, video, messaging, email, presence, file sharing, and collaboration tools -- into a single integrated platform. Instead of switching between a desk phone for calls, Zoom for video, Slack for chat, and email for formal communication, UC combines everything into one application with a unified user experience. For enterprise organizations, this convergence eliminates tool sprawl, reduces costs, improves productivity, and simplifies IT management. At EPC Group, we implement UC solutions built on Microsoft Teams that unify every communication channel for organizations across regulated industries.

Communication Channels That UC Merges

A comprehensive UC platform merges the following communication modalities into a single ecosystem:

  • Voice telephony -- Traditional PBX phone systems, VoIP calling, PSTN connectivity, auto-attendants, call queues, voicemail, and call recording. UC replaces standalone phone systems by embedding calling directly into the collaboration platform.
  • Video conferencing -- HD video meetings with screen sharing, whiteboarding, virtual backgrounds, breakout rooms, and recording. UC eliminates the need for separate video conferencing services and dedicated room systems.
  • Instant messaging and chat -- Real-time 1:1 and group conversations with persistent history, search, and rich formatting. Replaces consumer messaging apps and shadow IT chat tools.
  • Email integration -- While UC does not replace email, it integrates with email systems (Microsoft Outlook, Exchange Online) so users can see email notifications, calendar events, and meeting invitations within the UC interface.
  • Presence and availability -- Real-time status indicators (Available, Busy, In a Meeting, Do Not Disturb, Away) that are visible across all communication channels. Presence helps colleagues choose the right communication method at the right time.
  • File sharing and co-authoring -- Share files directly in conversations, co-edit documents in real time (Word, Excel, PowerPoint), and maintain version history. Eliminates the "attachment hell" of email-based document collaboration.
  • Calendar and scheduling -- Integrated meeting scheduling with availability checking, room booking, and automatic meeting link generation. One click to join any meeting from any device.
  • SMS and text messaging -- Some UC platforms integrate SMS for external communication, allowing businesses to send and receive text messages through the same interface as calls and chats.

Beyond Communication: What Else UC Merges

Modern UC platforms go beyond basic communication to merge business workflows and applications:

  • Business applications -- Microsoft Teams integrates with 1,000+ applications (Salesforce, ServiceNow, SAP, Workday) through tabs, connectors, and bots. Employees access business tools without leaving the UC platform.
  • Contact center operations -- UC merges internal employee communication with external customer communication. Agents handle customer calls, chats, and emails from the same platform they use for internal collaboration.
  • Project management -- Integrated task management (Microsoft Planner, To Do), shared lists, and project channels bring communication and work management into the same workspace.
  • Knowledge management -- Wiki pages, shared OneNote notebooks, and Viva Topics surface organizational knowledge within the context of conversations and meetings.
  • Analytics and insights -- UC platforms aggregate communication data (call volumes, meeting patterns, collaboration metrics) to provide organizational insights through tools like Microsoft Viva Insights.
  • AI and automation -- Meeting transcription, live captions, AI-generated meeting summaries (Copilot), automated workflows (Power Automate), and chatbot interactions are embedded directly into the UC experience.

The Business Case for Merging Communications

The value of UC comes from eliminating the friction, cost, and risk of managing disparate communication systems:

  • Cost reduction -- Consolidating 4-6 separate communication vendors (PBX, video conferencing, chat, file sharing, contact center) into one platform typically reduces communication costs by 30-50%. Licensing, maintenance, and IT administration overhead all decrease.
  • Productivity improvement -- Employees spend an average of 30 minutes per day switching between communication tools. UC eliminates context switching by keeping all interactions in one place. Research by Forrester shows UC adoption improves team productivity by 17-25%.
  • IT simplification -- One platform to manage, one vendor to negotiate with, one security framework to enforce, one set of compliance policies. IT teams spend less time managing infrastructure and more time enabling business outcomes.
  • Security consolidation -- A single UC platform means one set of authentication policies, one DLP framework, one compliance recording solution, and one audit log. Managing security across 5 different tools is exponentially harder.
  • Better decision-making -- When all communication is captured in one searchable system, institutional knowledge is preserved. Decision context from meetings, chats, and shared documents is linked together, not scattered across disconnected tools.

Microsoft Teams as the UC Merger

Microsoft Teams merges more communication and collaboration channels than any competing platform:

  • Teams Phone -- Replaces PBX phone systems with cloud-based enterprise calling.
  • Teams Meetings -- Replaces standalone video conferencing (Zoom, WebEx) with integrated meeting experiences.
  • Teams Chat -- Replaces Slack, consumer messaging apps, and email for real-time communication.
  • Teams Channels -- Replaces email distribution lists and project intranet sites for topic-based collaboration.
  • Teams Files -- Replaces file servers and third-party cloud storage by integrating SharePoint and OneDrive.
  • Teams Rooms -- Replaces dedicated video conferencing hardware with standardized meeting room experiences.

Why EPC Group for Unified Communications

  • End-to-end UC strategy -- We assess your current communication landscape, design the target UC architecture, and execute the migration in controlled phases.
  • Microsoft Teams expertise -- As a former Microsoft Gold Partner (2003–2022, the oldest in North America) and current Microsoft Solutions Partner, we have deep expertise in Teams configuration, Teams Phone deployment, room system integration, and governance.
  • Legacy system integration -- We handle the complex work of integrating Teams with existing PBX systems, analog devices, contact centers, and third-party applications.
  • Compliance and governance -- We configure UC environments for HIPAA, SOC 2, FedRAMP, and FINRA compliance, ensuring communication merging does not create compliance gaps.

Ready to Unify Your Communication Channels?

EPC Group consolidates voice, video, messaging, and collaboration into Microsoft Teams for enterprise organizations. Reduce costs, improve productivity, and simplify IT management with a unified platform.

Schedule a ConsultationCall (888) 381-9725

Frequently Asked Questions

Does UC replace email?
No. UC reduces reliance on email for internal communication by providing faster alternatives (chat, channels, calls), but email remains essential for external communication, formal correspondence, and regulatory record-keeping. In practice, organizations that adopt UC see internal email volume decrease by 30-40%, while external email usage remains unchanged. Microsoft Teams integrates with Outlook so you can manage both from a unified workflow.
Can UC work with our existing phone numbers?
Yes. When merging voice telephony into a UC platform like Microsoft Teams, your existing phone numbers are ported (transferred) from your current carrier to the new system. Number porting typically takes 2-4 weeks. During the transition, temporary call forwarding ensures no calls are missed. All DIDs, toll-free numbers, and international numbers can be preserved.
How long does a UC deployment take?
A typical enterprise UC deployment takes 3-6 months, depending on scope. Chat and meetings (Phase 1) can be deployed in 2-4 weeks. Voice/PSTN (Phase 2) takes an additional 4-8 weeks due to number porting and PBX decommissioning. Advanced features like contact center integration, room systems, and compliance recording (Phase 3) add another 4-6 weeks. EPC Group follows a phased approach that delivers quick wins early while methodically completing the full UC merger.
What happens if the internet goes down with UCaaS?
If your office internet connection fails, cloud-based UC services are disrupted at that location. However, employees can immediately switch to their mobile devices (cellular data) and continue using the UC application (Teams mobile app) with full functionality. For critical locations, we recommend redundant internet connections (dual ISP) and cellular failover to ensure communication continuity. Teams Phone also supports survivable branch appliances that maintain basic calling during internet outages.
Can we merge UC gradually or does it have to be all at once?
Gradual is strongly recommended. Most organizations start by merging chat and meetings (lowest risk, highest adoption), then add voice calling, then advanced features like contact center and compliance recording. Microsoft Teams supports coexistence modes with Skype for Business and SIP integration with existing PBX systems, allowing a smooth phased transition. EPC Group plans every UC merger as a multi-phase project with clear milestones and rollback options at each stage.

Microsoft Strategy: 2026 Considerations for What Can Unified Communications Merge

Microsoft Solutions Partner status (six designations: Data and AI, Modern Work, Infrastructure, Security, Digital and App Innovation, Business Applications) replaced the legacy Microsoft Gold Partner program in 2022. EPC Group held Gold Partner status from 2003 to 2022 (the oldest continuous Gold Partner in North America) and currently holds all six Solutions Partner designations; a credentialing footprint shared by fewer than 50 firms globally and typically used by Microsoft field teams as a vetting gate for enterprise Customer 0 nominations and named-account engagements.

EPC Group 29-year Microsoft consulting heritage matters specifically because Microsoft platform decisions today are layered on top of 25 years of architectural choices: Active Directory schema decisions from 2005 affect Microsoft Entra ID Conditional Access policy design in 2026; SharePoint 2003 information architecture decisions affect Copilot grounding quality in 2026. The firms that can navigate that depth (fewer than a dozen Microsoft Solutions Partners in North America) have a structural advantage on enterprise Microsoft migrations.

Decision factors EPC Group evaluates

  • Vendor consolidation analysis
  • Compliance and governance posture review
  • Enterprise architecture roadmap
  • Cost optimization and licensing audit
  • Microsoft platform capability assessment

EPC Group covers this topic across the relevant engagement portfolio. Reach the firm at contact@epcgroup.net for a 30-minute architect conversation.