PSTN Calling in Microsoft Teams
Enable enterprise phone calls through Microsoft cloud with Direct Routing and Calling Plans for Teams Phone System.
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Enable enterprise phone calls through Microsoft cloud with Direct Routing and Calling Plans for Teams Phone System.
By Errin O'Connor, Founder & Chief AI Architect, EPC Group
Pstn Calling in Microsoft Teams — enterprise Microsoft consulting resource from EPC Group. We provide strategic guidance, implementation expertise, governance frameworks, and compliance-native delivery across the Microsoft ecosystem (Power BI, Microsoft Fabric, Microsoft 365, SharePoint, Azure, AI Governance, Microsoft Copilot).
Expert pstn calling in microsoft teams implementation.
Expert pstn calling in microsoft teams implementation.
Expert pstn calling in microsoft teams implementation.
PSTN (Public Switched Telephone Network) calling in Microsoft Teams enables users to make and receive traditional phone calls directly from the Teams application. It turns Microsoft Teams into a full enterprise phone system, replacing legacy PBX hardware with cloud-based telephony.
Teams Phone System requires a Microsoft 365 E5 license (which includes Phone System) or a Microsoft 365 E1/E3 license with a Teams Phone add-on ($8/user/month). Additionally, you need either a Microsoft Calling Plan, Operator Connect, or Direct Routing to connect to the PSTN network.
Microsoft Calling Plans are a fully cloud-based solution where Microsoft provides the phone numbers and PSTN connectivity. Direct Routing connects your own SBC (Session Border Controller) and telecom provider to Teams, offering more flexibility, potentially lower costs for large deployments, and the ability to keep existing carrier contracts.
Yes, you can port existing phone numbers to Microsoft Teams whether using Calling Plans or Direct Routing. The porting process typically takes 2-4 weeks depending on your current carrier and number complexity. EPC Group manages the entire porting process to ensure zero downtime during the transition.
Yes, Microsoft Teams supports Enhanced 911 (E911) calling with dynamic emergency calling capabilities. Teams can detect user location and route emergency calls to the appropriate Public Safety Answering Point (PSAP) with accurate location information, meeting regulatory requirements for enterprise phone systems.
EPC Group is a Microsoft consulting firm based in Houston. We have experience in enterprise implementation since 1997 and over 10,000 successful deployments. Our expertise includes:
We serve a wide range of organizations, including Fortune 500 companies, federal agencies, and sectors such as healthcare, financial services, government, manufacturing, energy, education, retail, technology, and global enterprises.
What sets EPC Group apart is our governance-first approach. Every engagement starts with a security and compliance assessment. Our team of senior architects has practical experience in:
We focus on delivering results, not just hours worked.
Call (888) 381-9725 or email contact@epcgroup.net for a free assessment.
Microsoft Teams Phone in 2026 serves as the modern replacement for enterprise PSTN. It offers:
The total cost comparison against legacy PBX shows that Teams Phone is more cost-effective for any deployment with over 500 users.
The Microsoft Teams Rooms Pro license, priced at $40 per room per month, will enhance governance, security, and remote management for conference-room hardware in 2026. This cost is balanced within 12-18 months when compared to basic HDMI projectors. Benefits include:
In healthcare and financial services, Logitech Rally or Yealink are commonly used for room hardware.
See related EPC Group services at /services or schedule a discovery call at /contact.
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