Microsoft 365 · Teams Voice · Phone System Replacement
You’re Already on Microsoft 365.
You’re Still Paying for a Separate Phone System.
Most mid-market companies on Microsoft 365 are still paying for a separate phone system nobody likes: an aging PBX, a hosted VoIP system with a different admin portal, a carrier-managed system that takes a week to make a change. Teams Voice replaces it. Calls, meetings, messaging, and voicemail in one place, with TechWise handling the migration, number porting, and ongoing administration.
● Microsoft Solutions Partner
● Full phone system assessment before migration
● Number porting handled by TechWise
● Ongoing calling plan administration included
What TechWise Delivers
Migration Project. Then Ongoing
Administration. Both Handled.
Teams Voice is a project and an ongoing relationship. The migration replaces the phone system. Ongoing administration handles every change after: new numbers, updated call routing, user moves and changes, so the internal team doesn’t have to manage a voice platform on top of everything else.
Phase 01. Migration Project
Replace the phone system. Port the numbers. Train the users.
→ Phone system assessment: numbers, extensions, call flows, auto attendants, and call queues inventoried
→ Calling plan recommendation: domestic, international, or Operator Connect based on actual usage
→ Number porting: existing numbers migrated to Microsoft calling plans
→ Auto attendant and call queue configuration: existing call routing replicated and improved
→ Device guidance: desk phone compatibility, headsets, soft phone setup
→ User training: calls, voicemail, transfers, mobile app
→ Go-live support and hypercare through stabilization
Phase 02. Ongoing Administration
Every voice change handled. No ticket queue. No waiting a week.
→ User adds, moves, and changes for voice
→ Calling plan management: numbers added, removed, and adjusted as the business changes
→ Auto attendant and call queue updates: call routing updated as the business changes
→ Monthly voice health and usage reporting
What TechWise Replaces
Three Phone System Situations.
One Migration Approach That Fits Each.
The source system changes the complexity. TechWise assesses the existing phone environment before scoping the migration. The right approach for a 20-year-old PBX is different from consolidating three systems after an acquisition.
Most Common
On-Premise PBX
Hardware at or approaching end of life. Maintenance contracts that cost more each year. Features that haven’t changed since installation. TechWise inventories every number, extension, auto attendant, and call queue, then replicates and improves them in Teams Voice. The transition is invisible to callers.
Also Common
Hosted VoIP
A third-party phone platform running alongside Microsoft 365: separate login, separate admin, separate vendor to call when something breaks. For companies already using Teams for meetings, consolidating voice into the same platform removes the friction and reduces cost.
Post-Acquisition
Multiple Systems Across Locations
After an acquisition, the acquired company has a different phone system entirely. Sometimes multiple. TechWise consolidates onto Teams Voice across all locations, with a single calling plan, single administration, and consistent call routing across the combined organization.
Related Services
Teams Voice Raises the Same Question Every Time:
Is the Rest of Microsoft 365 Actually Configured Right?
Phone system replacement surfaces adjacent questions: whether the rest of Microsoft 365 is properly deployed, whether someone is managing the tenant day-to-day, and whether the broader IT environment needs attention.
Microsoft 365 not fully deployed
Microsoft 365 Deployment
Teams Voice requires a properly deployed Microsoft 365 environment. If Teams, SharePoint, and OneDrive were never properly configured, TechWise deploys them alongside the voice migration.
See Microsoft 365 Deployment →
Teams Phone Explained
How Teams Phone Replaces Your PBX.
What You Stop Paying For.
Microsoft Teams Phone is the cloud-based phone system built into Microsoft 365. It replaces traditional on-premise PBX hardware and analog phone systems with a software phone that runs on desktops, laptops, and mobile devices, anywhere with an internet connection. For organizations already running Teams for meetings and messaging, Teams Phone unifies communication on a single platform.
What Teams Phone Replaces
The On-Premise PBX and Its Maintenance Costs.
Traditional PBX phone systems require on-premise hardware, annual maintenance contracts, per-line carrier fees, and a vendor to call when something breaks. Teams Phone runs entirely in the cloud. no hardware to maintain, no per-device licensing from a phone vendor, and phone numbers managed through Microsoft or a direct routing provider. Most organizations find that eliminating PBX maintenance costs offsets the Teams Phone licensing cost significantly.
Calling Plans vs. Direct Routing
Two Ways to Get Phone Numbers Into Teams.
Microsoft Calling Plans are Microsoft-managed phone number services. Microsoft provides the phone numbers, handles the PSTN connectivity, and includes a per-user per-minute or unlimited calling bundle. Direct Routing connects Teams to a third-party SIP carrier. The organization brings its own phone numbers and carrier relationship, which is less expensive for large user counts or organizations with existing carrier contracts. TechWise recommends the right model based on user count, call volume, and existing carrier agreements.
Auto Attendants and Call Queues
The Features That Replace the Receptionist Desk.
Auto attendants handle inbound calls with menu options. Press 1 for sales, press 2 for support. Call queues route calls to a group of agents with hold music, overflow rules, and callback options. Both are included in Teams Phone and replace the auto attendant and ACD features of traditional PBX systems. TechWise configures these as part of every Teams Phone deployment.
Common Questions
Questions About Microsoft Teams Phone.
Tell Us What’s Broken.
We’ll Tell You How to Fix It.
Every managed engagement starts with a free assessment of your environment: no scope surprises. Tell us what’s broken, what’s keeping you up at night, or what you’re trying to build. We’ll tell you exactly what it takes and which model fits.