Using Microsoft Teams for calls

Microsoft Teams – Direct Routing is a simple and cost-effective solution, allowing organisations of any size or industry to make and receive calls to external landlines and mobile phones from the Microsoft Teams application.

This gives you the power to manage all your collaboration and communication through one easy-to-use interface.

Direct Routing is a relatively new add-on subscription service that allows organisations to make calls within Teams using SIP trunks to route the calls outside of the business.

This service allows those already using Teams for collaboration, to add voice functions and a variety of additional call control features for its users, enhancing Teams into a comprehensive cloud UC solution to include enterprise grade telephony.

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Microsoft Teams Integration

What is required to enable Direct Routing?

The following components are required for any organisation to enable Direct Routing:

  • Microsoft 365 or Office 365 license including Teams
  • Microsoft Phone System add-on
  • An Internet connection

Built on a reliable and resilient carrier-grade platform, Direct Routing can be provisioned simply and quickly, without the need for any onsite hardware.

The service provides VoIP connectivity, allowing your phone system to receive inbound and make outbound calls through the network, providing a cost-effective alternative to Microsoft Calling Plans.

Our network uses MS certified Session Border Controllers (SBC) to deliver a cloud-based service with enhanced functionality, greater value and improved flexibility


  • Call Anyone
    Ability to dial internal extensions whether on teams or traditional existing handset.
  • Call Termination
    01, 02, 03 and 08* termination with no number translation
    *Natively terminates on the endpoint but termination charges would still apply for 08 numbers only
  • Business Continuity
    Never miss a call thanks to business continuity with network and number level resilience to keep your business working
  • Improved Security
    Encryption over the internet & improved voice security
  • Dedicated Interconnect to Microsoft Teams in Azure
    Higher service speeds and accessibility
  • Seamlessly port your numbers
    Keep your existing geographic and non-geographic numbers
Microsoft Teams from Berry


  • Unified Communications
    Transform Teams into a feature rich UC business system extension, unifying (internal & external) users across teams / ipecs one and your LG phone system
  • Remote/Home Working
    Any Microsoft Teams user within your organisation can now be a live phone system extension anywhere allowing the end user to dial any system extension whether another teams app or a desk phone user.
  • Increase employee productivity
    Improved communication and collaboration can result in sharp increase in user experience, efficiency and output
  • Smooth and low-risk transition
    No new hardware or complex configuration required
  • No expensive CAPEX outlay
    Fully cloud-based solution means there’s no need for traditional hardware investment if not required
  • Reduce telephony bills
    Benefit from inclusive UK calls including calls to UK Mobiles
  • Strengthening your digital road map
    Optimise existing 365 license investment to deliver a new improved service

Choose Berry for your Microsoft Services

Vast experience
  • With over 20 years experience of delivering complex telephony solutions, Berry can deliver a suitable, premium grade voice service to match your particular needs
  • Our reputation is built on technical expertise and voice service delivery, with in-depth experience of VoIP implementations with businesses of all sizes
End to end support
  • We have the teams to support you on your journey, from experienced Project Managers, Pre-Sales and Technical Support engineers; all proficient in delivering Microsoft solutions
Detailed on-boarding process
  • We have the teams to support you on your journey, from experienced Project Managers, Pre-Sales and Technical Support engineers; all proficient in delivering Microsoft solutions
Best practice methodologies in design, configuration and deployment from Berry