Teams Voice (Direct Routing)

Service Definition • Armstrong Bell • 8 August 2026

Document summary

This document details 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 different device classes may have different feature sets and availability for certain features.

The list below has been tested against Yealink SIP phones, Yealink-certified Teams phones, and Cisco ATA.

Feature list

Below is a list of the telephony system's features, graded on how well we believe each one works, with links to further documentation where available.

Feature grading is 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