Teams Voice (Direct Routing)

Service Definition • Armstrong Bell • 21 May 2026
Document Summary
This document details all of the tested and approved features that Armstrong Bell will support when using Teams as the main Voice product for a customer

It should be noted that various different device classes may have different feature sets and availability to certain features.

The list below has been tested against Yealink Sip Phones, Yealink Certified Teams phone, and Cisco ATA
Feature List
Below is a list of the features of the telephony system, with a grading scheme about how well we believe this feature works, and then where it existing any external documents to detail and further information / configuration steps

Feature Grading has been defined as Follows

  • Full
  • Supported with limitations ( as defined by our experience )
  • Not Supported

Feature Supported Level Supporting Documentation
Call Park
supported with limitations
Call Park 
Call Pickup supported with limitations Call Pickup 
Transfer (Consult) Full
Transfer (Blind) Full
Transfer (Conference) Full