01 · Foundations
Global Administrator is not a voice habit. The role you use decides what an audit can prove later.
Teams Administrator, Teams Telephony Administrator, and Teams Communications Administrator cover different slices of calling and meetings. Support Engineer and Support Specialist are troubleshooting roles, useful for Call Analytics, and the wrong tool for building a dial plan.
Use the smallest role that can do the change. Keep named accounts. Conditional Access belongs on those admin accounts. A sticky note that holds both the SBC password and a global admin password is the incident, not the recovery.
Use a named Teams or telephony admin. Keep Global Administrator off the daily voice work.
I will use a telephony or Teams admin role, not a shared global admin.
If it fails: Nobody can tell who changed the voice route because the account was shared.
Which description of Homed online is accurate?
Direct Routing users must be homed in Microsoft 365, not left on a Skype for Business on-premises registrar. A user who looks licensed and still is not online will not use the online voice route. Source: https://learn.microsoft.com/en-us/microsoftteams/direct-routing-plan accessed 2026-10-14.
A colleague reports: The policy is assigned and the call never leaves the legacy system. Where do you start?
The policy is assigned and the call never leaves the legacy system. Check the user’s registrar before you assign a voice routing policy. Source: https://learn.microsoft.com/en-us/microsoftteams/direct-routing-plan accessed 2026-10-14.
Which description of Islands mode is accurate?
A coexistence mode. Direct Routing is not supported for users in Islands mode. It is a hard stop, not a tuning problem. Source: https://learn.microsoft.com/en-us/microsoftteams/direct-routing-plan accessed 2026-10-14.
Around the call: compliance recording, workforce management, emergency location, analytics, CRM screen pop, and an agent with a human escape. Each one has its own failure.
Nobody can tell who changed the voice route because the account was shared.
Cisco CUBE is one of the SBC families named in this lab’s certification lesson. A certified release can be the Direct Routing SBC between Unified CM and Teams.
The tenant still needs a verified domain on the SBC FQDN, and the user still needs Teams Phone. The studio translator does not open a live AXL session. Confirm the current certified release before you build.
Teams Phone and Webex Calling are separate clouds. This lab does not describe a feature that registers a Webex Calling user into a Teams tenant.
A number move is usually a carrier port, a certified SBC, or a meetings interop product. Confirm before relying.
Unified CCE stays the ACD until you migrate it. Microsoft’s contact-center articles name Connect, Extend, and Unify. They do not name a UCCE connector in the notes this lab cites.
Voice into Teams is still Direct Routing or Operator Connect. The routing script stays on the contact-center product you bought. Confirm the vendor’s current model. Source: https://learn.microsoft.com/en-us/microsoftteams/teams-contact-center.
Copilot Studio, Azure Communication Services, and Graph are later tracks in this lab. Treat any uncited limit as confirm before relying.
Opened 2026-10. A row marked confirm did not open. Wikipedia is background. The Teams blog row is the community index.
