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Microsoft Teams Phone Systems

A modern business phone system, fully integrated with Microsoft Teams.

Book a Free Assessment

Microsoft Teams Phone Systems Overview

Microsoft Teams Phone turns Microsoft Teams into a fully‑featured business phone system, replacing traditional PBX and VoIP platforms with a modern, cloud‑based solution.

Making and receiving calls, transferring calls, voicemails, auto attendants, and call queues are all handled directly within Teams — using the same interface your staff already use every day. Users can make and receive calls from their computer, mobile phone, desk handset, or browser from any location.

Our Microsoft Teams Phone service helps businesses design, deploy, and manage Teams‑based phone systems that are reliable, easy to use, and fit real‑world business requirements.

Who This Is For

Small to Medium Businesses

Replace legacy phone systems with a flexible, cloud‑based solution that’s easy to manage and scale.

Enterprise Organizations

Deploy a centrally managed phone system across multiple sites with consistent call handling and control.

Startups

Launch a professional phone system quickly without installing on‑site hardware.

IT Departments

Reduce the complexity of managing separate telephony platforms and integrations.

Accountants

Ensure dependable call handling during busy periods, with clear call routing and voicemail management.

Lawyers

Maintain professional call handling while enabling secure mobile and remote access.

Estate Agents

Support busy inbound call flows with call queues, hunt groups, and remote agents.

Manufacturers & Distributors

Provide a consistent phone system across offices, warehouses, and operational teams.

Construction

Enable mobile‑first calling for site‑based and remote staff without relying on physical systems.

Other

Any organisation looking to modernise telephony and simplify communications can benefit from Teams Phone.

How we work

1

Discover

We start with a free, high‑level Teams meeting (or phone call) to understand your business and what you need.

2

Assess

If you proceed, we carry out a free initial assessment of each site and shared systems to establish a clear baseline.

3

Agree

We review our findings in plain English and agree priorities together, with no charge and no obligation.

4

Support

Once support is in place, we provide ongoing IT support with monthly assessments and annual reviews to keep your IT secure and aligned.

Modernise Your Business Phone System

If you’re unsure whether your current phone system is reliable, flexible, or cost-effective, we can help.

Book a free consultation to review your setup, identify any limitations, and see how Microsoft Teams Phone could improve your business communication.

No cost. No obligation. Just a clear assessment.

Book a discovery call Call 0800 043 0043

What's Included

What's Included

  • Microsoft Teams Phone system design
  • Licensing and call connectivity advice
  • Call plans or Direct Routing configuration
  • Auto attendants and call queues
  • Number porting and call routing setup
  • Desk phone and headset integration
  • Voicemail, call reporting, and policies
  • Ongoing support and management

How Our Microsoft Teams Phone Service Works

We start by understanding how your business handles calls — including inbound volumes, call flows, working hours, and remote working needs.

From there, we design a Teams Phone configuration that fits your organisation. This includes call routing, auto attendants, call queues, and integration with desk phones or headsets if required.

Our approach focuses on:

  • Clear and professional call handling
  • Reliable call quality
  • Simple user experience
  • Easy administration and change management

The result is a phone system that works naturally with Teams and scales as your business grows.

Why Choose d8a?

Free Assessments

Discover opportunities for improvement with no initial cost.

Efficient Workflows

We streamline IT processes to save you time and boost productivity.

Consistent Service

Expect reliable support and performance, every time.

Free Consultation

Get expert insights tailored to your business, on the house.

Well Organised

Our team operates with precision, keeping every project on track.

Years of Experience

Decades of expertise guide our every solution.

Ready to Upgrade Your IT Infrastructure?

Book a Free Assessment today and discover how we can help your business thrive with the right technology.

Call 0800 043 0043 Email Us

Areas we cover

Providing expert IT support and infrastructure services across London and the South East.

LondonSurreyKentHampshireSussex

What our customers say

Frequently Asked Questions

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What is a Microsoft Teams Cloud Phone System?

A Microsoft Teams Cloud Phone System replaces traditional desk phones with a fully cloud‑based calling platform inside Microsoft Teams. It allows users to make and receive business calls from anywhere using their laptop, mobile, or Teams‑enabled desk phone.

How does a Cloud Phone System work?

Your phone numbers, call routing, voicemail, and call queues run in the cloud. Users simply open Microsoft Teams and can:

  • Make and receive calls
  • Transfer calls
  • Join call queues
  • Access voicemail
  • Use headsets, mobiles, or desk phones

No on‑premises phone server or physical PBX is required.

What are the benefits of using Teams as your phone system?

Work anywhere — calls work on laptops, mobiles, tablets, and Teams phones

No phone hardware needed — everything runs in the cloud

Lower costs — no PBX maintenance or on‑site equipment

Better security — protected by Microsoft 365’s identity and security controls

Unified communication — calls, chat, meetings, and collaboration in one app

Scalable — add or remove users instantly

Who is a Teams Cloud Phone System suitable for?

It’s ideal for:

  • Small to medium businesses
  • Multi‑site organisations
  • Remote or hybrid teams
  • Accountants, lawyers, estate agents, manufacturers, construction teams
  • Any organisation wanting to modernise their phone system and reduce hardware reliance
Can I keep my existing phone numbers?


Yes. Your existing numbers can be ported into Microsoft Teams so your clients continue calling the same numbers they already know.

What devices can I use with a Teams Cloud Phone System?

Users can choose:

  • Laptops and desktops
  • Mobile phones (Teams app)
  • Teams‑enabled desk phones
  • USB or Bluetooth headsets
  • Conference room devices

This gives complete flexibility for office, home, and on‑the‑go working.

How does call routing work in Teams?

You can set up:

  • Call queues
  • Auto‑attendants
  • Time‑based routing
  • Department‑based routing
  • Overflow rules
  • Voicemail and shared mailboxes

D8A designs your call flow so customers reach the right person quickly and consistently.

Is a Teams Cloud Phone System secure?

Yes. Security is handled through Microsoft 365, including:

  • Multi‑factor authentication
  • Conditional Access
  • Encryption
  • Identity protection
  • Device compliance policies

This makes it significantly more secure than traditional phone systems.

Question goes What licences do I need for Teams calling?

Most organisations use:

  • Microsoft 365 Business Voice
    or
  • Microsoft Teams Phone Standard

D8A reviews your current licences and ensures you only pay for what you need.

Can Teams replace my existing PBX?

Yes. Teams Cloud Phone Systems fully replace traditional PBX systems, removing the need for:

  • On‑site hardware
  • SIP trunks
  • Physical maintenance
  • Complex cabling

Everything runs in the cloud.

What does D8A’s Cloud Phone System service include?

Number porting

Call flow design

Auto‑attendants and call queues

Device setup

Security configuration

Licence optimisation

Ongoing support and administration

How do I know if Teams Cloud Phone is right for my business?

If you want to reduce hardware, simplify communication, support hybrid working, or modernise your phone system, Teams Cloud Phone is usually the best fit.
D8A offers a free consultation to confirm suitability.

How do I get started?

You can book a discovery call or contact D8A directly on 0800 043 0043.

Ready to Upgrade Your IT Infrastructure?

Book a Free Assessment today and discover how we can help your business thrive with the right technology.

Call 0800 043 0043 Email Us