Microsoft Teams Phone System Vs Dedicated VoIP For UK SMEs
Microsoft Teams Phone System vs Dedicated VoIP? That is what most UK SMEs are asking right now. Usually right after BT reminds them the PSTN switch off is coming and their old phone system is on borrowed time.
Let’s be real. You do not care about technical fluff. You want to know what works, what it costs, and whether your team will complain after the switch.
As a fully managed UK VoIP specialist, Cleartwo helps businesses move from legacy lines to hosted VoIP phone systems or connect voice properly into Teams. We handle migration, number porting, and support. You get a 99.99 percent uptime SLA. No chaos. No guesswork.
What Is Microsoft Teams Phone System
Cut the nonsense. Microsoft Teams Phone is a cloud PBX built into Teams. It lets you make and receive external calls, not just chat and video calls.
You get features like auto attendants, call queues, voicemail transcription, call transfer, basic reporting, and presence based routing. If your team already lives in Teams, it feels tidy. One app. One login.
Here is the catch. You need extra licences. That means Microsoft Calling Plans, Operator Connect, or Direct Routing. None are free. Costs often land between £14 and £25 per user each month once set up properly. Looks simple in the demo. Finance may see it differently.
We explained the full setup in our Microsoft Teams phone system UK guide.
What Is Dedicated VoIP Or Hosted VoIP
Now let’s talk about proper business telephony UK style.
Dedicated VoIP, also called hosted VoIP or cloud PBX, is built for voice first. It runs over the internet using SIP trunking. That simply means calls travel as data rather than old copper lines.
It gives you full control over call routing, reporting, recording, and system integrations. It is not bolted onto chat software. It is designed as a phone system. Simple idea.
With a business VoIP system for UK companies, you usually get advanced routing, CRM integration, wallboards, GDPR compliant call recording, apps for mobile and desktop, desk phone support, and flexible call bundles.
And yes, it can still connect to Teams using Direct Routing. So it is not always either or. If you design it properly, it can be both.
Teams Phone Vs VoIP UK Feature Comparison
Stop pretending they are the same. They are not.
Flexibility
Teams Phone works well inside the Microsoft ecosystem. Dedicated VoIP gives wider device choice and deeper routing rules. So ask yourself. Are you buying convenience or control?
CRM Integration
If your sales team uses Salesforce or HubSpot, proper CRM telephony integration matters. Dedicated VoIP usually gives stronger click to dial and screen pop features. If calls bring revenue, this is not optional.
Call Recording
Finance and legal firms need compliant recording. Hosted VoIP often includes it. With Teams, advanced recording may need extra setup or third party tools. Telling a regulator you thought it was recording will not end well.
Reporting
Dedicated VoIP platforms often give deeper analytics and live wallboards. If you review team performance weekly, that matters.
Cost Control
Many SMEs save up to 60 percent compared to old lines when moving to hosted VoIP. Teams Phone can be cost effective. But once licences stack up, it is not always cheaper. Anyone claiming one size fits all is selling, not advising.
For a broader view, see our hosted PBX vs cloud VoIP breakdown.
Cost Reality Check For UK SMEs
Honestly, this is where decisions are made.
With Teams Phone you often pay for the Teams Phone licence, a Calling Plan or Direct Routing, possible compliance add ons, and sometimes third party setup.
With hosted VoIP, you usually pay per user each month. Calls are bundled. Core features are included. No constant upsell for basics like call recording.
Most firms use about 20 percent of what they buy. The rest just inflates the bill. Come on. Spend on what you will actually use.
What About The PSTN Switch Off
Here is what is actually happening. The PSTN switch off UK deadline is fixed. By January 2027, ISDN and analogue lines are gone.
If you are still on ISDN, you need a migration plan. Both Teams Phone and dedicated VoIP solve the issue. The difference is how smoothly you roll it out.
Number porting, SIP trunk setup, call flow design, and failover routing all need planning. One bad port and your phones are silent on Monday morning. Your team will not blame the carrier. They will blame you.
We covered the urgency in our ISDN switch off 2027 guide. Read it. Then act.
Where CallSwitch One Comes In
Not all hosted platforms are equal. Cleartwo delivers solutions built on CallSwitch One, a UC platform designed for UK businesses.
We are CallSwitch One resellers. That matters.
- Enterprise grade features
- Competitive SME pricing
- Full UK based support
- Managed setup included
- Teams voice integration
- 99.99 percent uptime SLA
You deal with real people who understand cloud PBX migration, CRM integration, and compliance. When something breaks, it gets fixed. Simple.
When Should You Choose Teams Phone
Let’s be fair.
- Your team works inside Teams all day
- You want fewer apps
- Your call flows are simple
- You are comfortable managing Microsoft licences
For small, internal teams, it can work well. Just go in with clear expectations.
When Is Dedicated VoIP The Smarter Move
Bluntly, if calls drive revenue, go dedicated.
- You run sales or support teams
- You need advanced queues
- You want deep analytics
- You rely on CRM integration
- You need compliant call recording
- You want tight cost control
This is especially true for growing SMEs planning beyond 2027. Business telephony UK is about visibility and accountability now. Not just dial tone.
How This Connects To Wider Digital Strategy
Your phone system does not sit alone.
If it cannot feed clean call data into your CRM, reporting tools, and finance systems, you are building silos. Then calling it innovation. Stop pretending that is progress.
Integration simply means your systems talk to each other. When they do, you get insight. When they do not, you get confusion.
So Microsoft Teams Phone System Vs Dedicated VoIP Which Is Better
Obviously, there is no universal answer.
If you want simple internal calling inside Microsoft, Teams Phone works.
If you want a flexible, feature rich cloud PBX with stronger CRM integration, advanced recording, and clearer cost control, dedicated hosted VoIP usually wins.
For many SMEs, the smart move is managed VoIP integrated into Teams using Direct Routing. Best of both worlds. No compromise.
If you are unsure, speak to Cleartwo. We will tell you if Teams is enough. We will tell you if it is not. Straight up.
Frequently Asked Questions
What Is The Difference Between Teams Phone And VoIP
Teams Phone is built into Microsoft Teams and needs extra licences for external calling. Dedicated VoIP is a standalone hosted system built for business telephony, with broader routing, reporting, and recording features.
Does Microsoft Teams Phone Work Without Extra Licences For UK Calls
No. You need a Teams Phone licence plus Calling Plans, Operator Connect, or Direct Routing with a SIP provider. Microsoft 365 alone does not include external PSTN calling.
How Do I Migrate Before The PSTN Switch Off In 2027
You must move from analogue or ISDN lines to a cloud solution such as hosted VoIP or Teams Phone with Direct Routing. This includes number porting, SIP setup, and call flow design. A managed provider can handle the full process.
Can Dedicated VoIP Integrate With Microsoft Teams
Yes. Using Direct Routing, a hosted VoIP platform can connect to Teams. Users make and receive calls inside Teams while keeping the flexibility of a dedicated cloud PBX.
Is Call Recording Compliant With UK Regulations
Call recording is legal in the UK when handled in line with GDPR and with clear notice. Many hosted VoIP systems offer secure storage and access controls. Always check encryption and retention policies.
Author Adam
