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Direct-Routing-FlowMicrosoft Teams – Direct Routing

Direct Routing – makes and receives business phone calls directly on Microsoft Teams.

Businesses are already using Teams for Chat, File Sharing & Video Conferencing. However, one important factor of communication was missing, making and receiving calls from Local/National number calling directly from Teams including mobiles, i.e. using Microsoft Teams as a complete office phone system.

Traditional telecom companies including VOIP providers cannot access Microsoft Teams Direct Routing (aka Microsoft Integrated phone system) without Session Border Controller (SBC).

Primax Telecom proudly provides this service (in addition to common telecom services) for connecting your business phone systems to Microsoft Teams vis Direct Routing. Primax Telecom provides & manages Microsoft Certified Session Border Controller (SBC).

Microsoft Teams uses IP based voice/video connections commonly known as SIP Trunk to connect to the rest of the world. Primax Telecom’s secure certified SBC provides these communications over secure channel to assure communication across the globe.

Advantages of Direct Routing with Primax Telecom

  • Complete cloud solution Per End-Point or Per Channel
  • Per user per month billing (no long contracts)
  • Easily configure and convert existing voice lines to work with Microsoft Teams via Direct Routing
  • External communication (not just Teams to Teams)
  • Integrated platform that works with your existing Microsoft eco system
  • Real time collaboration with other team members
  • Easily monitor cloud phone calls
  • Clear and HD voice quality
  • Connect multiple devices
  • Keep your existing phone number (porting charges may apply)
  • Advance call routing & reporting



End User requires E1, E3 or E5 Microsoft 365 License for Teams to work

If you don’t have above Microsoft 365 license, a Business Voice Add-on will be required


  • Client supplies E1, E3 or E5 Microsoft cloud license or we can arrange this for you
  • Primax Telecom provides Sip Trunk or Sip Channels for Teams (charges apply)
  • Primax Telecom provides Telecom service to PSTN network (charges apply)

Supported Devices

  • Microsoft Softphone application (PC / Phone / Tablet)
  • Yealink MP-58, MP-58-WH- VP-59 hardware IP Phones

Any other MS Teams enabled hardware IP Phones

Microsoft Teams Direct Routing plans starting from as little as $4.95 per month PLUS SIP channel or extension PLUS Microsoft 365 license.

For further information, please email us at or call us on 02 9133 1307.

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