Business communication has changed dramatically over the past few years. Traditional desk phones and on-premise PBX systems are no longer the only option. As organisations adopt cloud technology and flexible working models, many are turning to Microsoft Teams as their business phone system.
For companies already using Microsoft 365, this shift makes a lot of sense. Instead of relying on multiple tools for calls, meetings, messaging, and collaboration, everything can be brought together in one place.
But what exactly does it mean to use Microsoft Teams as a phone system, and why are so many businesses making the switch?
Microsoft Teams Phone allows businesses to make and receive external phone calls directly within Microsoft Teams.
While many organisations already use Teams for chat, meetings, and file sharing, Teams Phone expands this functionality by adding full telephony capabilities. This means staff can call external numbers, receive incoming calls, and manage business communications from the same platform they already use daily.
Employees can make calls from:
This flexibility makes it much easier for teams to stay connected, whether they are working in the office, remotely, or travelling.
Many organisations are choosing to move away from traditional PBX systems because they no longer support the way modern teams work.
With Microsoft Teams Phone, employees can take their business number with them wherever they work. Calls can be answered on a laptop, smartphone, or desk phone, making it easy for staff to remain accessible without being tied to a single location.
Instead of switching between multiple systems for messaging, meetings, and phone calls, Teams brings everything together in one place.
This unified approach helps teams work more efficiently and reduces the need for separate communication tools.
Traditional phone systems can be expensive and complex to expand. Adding new users often requires additional hardware and configuration.
With Microsoft Teams, new users can be added quickly through software licensing, making it much easier to scale communications as a business grows.
Because Teams Phone operates in the cloud, there is far less reliance on physical infrastructure. Many businesses can reduce or eliminate the need for on-site PBX equipment.
While many businesses focus on the internal collaboration benefits of Microsoft Teams, its telephony capabilities also play a major role in improving the customer experience.
Because Teams integrates voice communication with other business tools, staff can handle enquiries more efficiently and respond to customers faster.
For example, when a call comes in, employees can instantly access relevant information stored in Microsoft 365. This might include shared documents, customer records, or internal conversations with colleagues.
Teams also allows businesses to manage incoming calls more professionally through features such as:
Auto attendants
These automatically greet callers and direct them to the right department, reducing the need for manual call handling.
Call queues
Calls can be routed to multiple team members, so customers are not left waiting if one person is unavailable.
Voicemail transcription
Voicemails are converted into text and delivered directly within Teams, helping staff respond quickly without needing to listen through multiple messages.
Presence indicators
Employees can see whether colleagues are available, busy, or in meetings before transferring calls.
These tools help businesses maintain a professional and responsive communication system while keeping everything within a single platform.
Microsoft Teams Phone offers a wide range of features designed to support business communication.
Some of the most commonly used features include:
These features help businesses streamline communication while maintaining a professional customer experience.
When comparing Teams Phone with traditional phone systems, the differences are clear.
Infrastructure
Traditional systems rely on physical PBX equipment, while Teams operates through cloud infrastructure.
Flexibility
Teams supports remote and hybrid working far more effectively than office-based phone systems.
Maintenance
Cloud-based systems require far less on-site maintenance and management.
Scalability
Adding users to Teams is quick and straightforward, whereas traditional systems often require additional hardware.
Future readiness
Teams continues to evolve as Microsoft adds new features and integrations.
For many organisations, these benefits make cloud telephony a logical next step.
To use Microsoft Teams as a full business phone system, a few components are required.
These typically include:
Many organisations also choose to integrate compatible desk phones or headsets to improve call quality and usability.
While Microsoft Teams Phone offers powerful functionality, successful implementation requires careful planning.
A telecoms provider can help businesses by:
This ensures the transition from a traditional phone system is smooth and avoids unnecessary disruption to day-to-day operations.
As businesses continue to embrace flexible working and cloud technology, communication platforms are becoming more integrated.
Microsoft Teams is quickly evolving into a central hub for workplace collaboration, bringing together chat, meetings, documents, and now telephony.
For organisations looking to modernise their communications, moving their phone system to Microsoft Teams offers a practical and scalable solution that supports the way modern teams work.
Yes. With Teams Phone enabled, Microsoft Teams can function as a full business phone system, allowing organisations to make and receive external calls just like a traditional PBX.
Not necessarily. Staff can make calls from computers, laptops, or mobile devices. However, compatible desk phones and headsets are available for organisations that prefer traditional handsets.
Yes. Teams Phone works well for businesses of all sizes because it is scalable and can be easily expanded as a company grows.
In most cases, existing phone numbers can be transferred (ported) into Microsoft Teams so businesses can retain their established contact numbers.
