A common-area phone on Direct Routing does not need a Calling Plan.Teams Rooms use the current room SKU, not a borrowed user license.Shared Calling lets people place outbound calls through a resource account’s number, and it has its own funding rules.
Read the current page for the pattern you are about to promise.Room names change.Shared Calling is not a slogan for ‘nobody gets a number and everything still works.’
License rooms and common-area phones on purpose.Direct Routing common-area phones do not need a Calling Plan.
Repeated misses take a trunk out of service. The campus does not invent Microsoft's internal counter.Distinct patterns. Counts in this drawing are teaching order, not customers.
Which description of Communications credits is accurate?
A balance used when a call is not covered by a Calling Plan minute. Voice apps use it for some outbound cases. An empty balance looks like a routing failure. Source: https://learn.microsoft.com/en-us/microsoftteams/aa-cq-reference-prerequisites-licensing accessed 2026-10-14.
A colleague reports: The queue worked in the pilot week and stopped when the credit ran out. Where do you start?
The queue worked in the pilot week and stopped when the credit ran out. Fund the balance and assign it where the prerequisite article requires it. Source: https://learn.microsoft.com/en-us/microsoftteams/aa-cq-reference-prerequisites-licensing accessed 2026-10-14.
Which description of Shared Calling is accurate?
A pattern where users place outbound PSTN calls through a resource account’s number instead of each having a number. It is not a free substitute for every Calling Plan scenario. The shared number has its own license rules. Source: https://learn.microsoft.com/en-us/microsoftteams/teams-phone-licensing accessed 2026-10-14.
Teams Phone The license capability that lets a user use Teams as a phone system. It is not, by itself, a PSTN carrier. Config: Assign Teams Phone, then add a connectivity option. Fault: Outbound PSTN fails because only Teams, not Teams Phone, is assigned.
Calling Plan A Microsoft-operated PSTN option. Domestic, international, and pay-as-you-go are the usual flavors. It is an extra license on top of Teams Phone. Config: Buy the plan only where Microsoft sells it, and assign it to the user. Fault: A user in an unsupported country is given a Calling Plan SKU that cannot be used.
Audio Conferencing The license that provides dial-in numbers for meetings. It is not Teams Phone. Config: Assign it to people who must publish a dial-in number. Fault: Conference dial-out hits the SBC and the carrier bill surprises finance.
Teams Premium An add-on for advanced meetings and related features. It does not replace Teams Phone or a Calling Plan. Config: Buy it only for the meeting features you actually need. Fault: A design removes Calling Plans because Premium was purchased.
Sister technologies
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.
Config and troubleshooting
Every corridor phone was given a user Calling Plan on a Direct Routing design.
Cross-platform bridges
CUCM
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.
Webex
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.
UCCE
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.
Microsoft 365 — Wikipedia — last checked 2026-10. Wikipedia fallback for background. Confirm the vendor page before you change a tenant
Microsoft Teams blog index — Community — last checked 2026-10. Community index for the Microsoft Teams blog. This is the index, not a claim that a post discusses this room