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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.

PBX Phone System Services

Expert Microsoft consulting and implementation

PBX Phone System

Enterprise-grade pbx phone system services backed by 29 years of Microsoft consulting expertise.

Get StartedView Case Studies

Key Benefits

Benefit 1

Expert pbx phone system implementation.

Benefit 2

Expert pbx phone system implementation.

Benefit 3

Expert pbx phone system implementation.

Ready to Get Started?

Contact us today for a free consultation.

Contact Us(888) 381-9725

Frequently Asked Questions

What Microsoft Teams consulting services does EPC Group offer?

EPC Group provides Microsoft Teams deployment, governance, Phone System (PSTN/Direct Routing), security configuration, compliance setup, training, and adoption strategy. We specialize in enterprise Teams environments with 1,000+ users across healthcare, finance, and government.

Can Microsoft Teams replace our existing phone system?

Yes. Microsoft Teams Phone System with Calling Plans or Direct Routing can replace traditional PBX systems. EPC Group has migrated thousands of users from legacy phone systems to Teams Phone, including complex multi-site deployments with E911 compliance.

Is Microsoft Teams HIPAA-compliant for healthcare?

Yes, when properly configured. Microsoft Teams can be HIPAA-compliant with appropriate DLP policies, sensitivity labels, guest access controls, and audit logging. EPC Group deploys Teams for healthcare organizations with full HIPAA safeguards and BAA compliance.

How does EPC Group approach Teams governance?

EPC Group implements Teams governance frameworks covering team creation policies, naming conventions, lifecycle management, external sharing controls, guest access policies, retention settings, and Copilot governance — preventing the sprawl that plagues ungoverned Teams deployments.

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 Strategy: 2026 Considerations for Pbx Phone System

Microsoft Solutions Partner status (six designations: Data & AI, Modern Work, Infrastructure, Security, Digital & 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

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

For a tailored read on this topic in your specific tenant, contact EPC Group at contact@epcgroup.net or +1 (888) 381-9725. Engagement options at /pricing.

Pbx Phone System for Fortune 500 and regulated industries

EPC Group delivers Pbx Phone System as a core practice within the Microsoft consulting portfolio. Engagements are led by senior architects with hands-on Fortune 500 delivery experience and a bench of hundreds of Microsoft-certified consultants spanning SharePoint, Microsoft 365, Power BI, Azure, Microsoft Copilot, and Microsoft Purview.

Every Pbx Phone System engagement is engineered for the regulatory and operational environment it serves. Healthcare deployments carry HIPAA controls from day one; financial services deployments meet SOC 2 and FINRA retention requirements; government deployments map to FedRAMP and CMMC controls with audit-ready evidence.

Financial services

For banks, asset managers, and broker-dealers, EPC Group engineers SOC 2 audit trails, FINRA Rule 4511 and SEC 17a-4 retention, MNPI containment, and Communication Compliance for trading floors. Microsoft Purview Audit Premium with seven-year tamper-evident retention is the standard baseline; Defender for Cloud Apps detects shadow-AI exfiltration before it reaches a compliance event.

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.

Compliance-native, not bolted on

Zero governance audit failures across 11,000-plus enterprise engagements. HIPAA, SOC 2, FINRA, FedRAMP, and CMMC controls are engineered into the tenant on day one with audit-ready evidence. The regulated-industry posture is the baseline, not an upgrade tier.

Manufacturing and energy

For multi-plant manufacturers and energy operators, EPC Group integrates Microsoft 365 with operational technology, protects intellectual property through Purview labels and Endpoint DLP, and provisions frontline workers with F1 and F3 licensing patterns. Multi-region rollouts include data residency planning and offline-capable Power Platform apps for shop-floor environments.

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.

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.

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.