What is Microsoft 365 Phone System?


Microsoft 365 Phone System is a complete, cloud-based calling solution that is uniquely positioned to add calling into the flow of your work. Since our way of working changed 3 years ago, the cloud-based Microsoft Teams Phone System has become the most recommended VoIP solution by industry experts. For the 3rd year in a row, Microsoft has been recognized by industry experts as a Leader in the 2021 Gartner Unified Communications as a Service (UCaaS) Magic Quadrant reports.

Calling should enhance collaboration, rather than be a siloed experience. Through Phone System you can replace your existing PBX system with a set of features directly delivered from Microsoft 365For making external calls, Phone System provides add-on options for connecting to the PSTN network such as Calling Plans, Operator Connect, and Direct Routing. To learn more about the benefits and disadvantages of each one, read this.


MS phone system Features

Here is a quick look at some of the Teams Phone System features, for more information see this article.

        • Cloud auto attendants
        • Call queues
        • Music on hold
        • Forwarding options and simultaneous ring
        • Caller ID
        • Cloud voicemail


Benefits of Direct Routing as your PSTN connection


Certainly, Direct Routing compared to other PSTN connections and Microsoft Calling Plans, offers better pricing. Through a flexible model with lower calling charges, you will only pay for the number of concurrent calls needed.


Teams Phone System through Direct Routing is highly scalable. You can quickly deploy from 10 to 10,000+ DIDs, so it can grow and adapt as your business grows.

High availability

During an internet or a Microsoft Cloud outage it is crucial to ensure availability to prevent downtime on your day-to-day operations. Via Direct Routing you can route main number incoming calls to a temporary emergency phone number without the need of a Survivable Branch Appliances (SBA) or any additional charge for auto attendants.

Tailored features

Direct Routing turns Microsoft Teams into a simplified PBX, but for bespoke calling features, you must look for a Direct Routing provider who help you extend Teams Phone capabilities, such as, call detail records (CDR), call analytics, multi-channel contact center, and more.


Microsoft Teams Phone, as part of the Microsoft 365 and Office 365 services, follows all the security best practices and procedures such as service-level security through defense-in-depth, customer controls within the service, security hardening, and operational best practices. With Microsoft Defender for Office 365 you can protect sensitive information and confidential resources with integrated data loss prevention and sensitivity label policies.

How can BlueSky UC support your migration from an On-Premises PBX to Microsoft Teams Voice?

Your transition to Teams cloud-based telephony shouldn’t be a headache or intimidating. Sometimes leveraging Microsoft technologies can be difficult and time-consuming, but with the right third-party provider by your side, you will receive proper guidance about licensing, add-ons, and plans without the need to have your IT staff involved.

As a Microsoft Gold Certified Partner, BlueSky UC delivers successful UC projects, managed services and UC as a service (UCaaS) to midsize and enterprise clients. No matter which path you take to modern voice communications, our team is ready to support you, handle your collaboration needs, and manage IT projects from design to executions and into optimization. We offer complete lifecycle services including planning, migration/porting, end user training and adoption, and help desk services.

Contact us today and let’s start a conversation!

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