Cloud Voicemail deposits the message in the user’s Exchange mailbox.No mailbox, no deposit.Overflow from a queue to voicemail fails the same way if the account that should receive the message has nowhere to put it.
Debug voicemail only after the call has actually reached the voicemail path.If the ladder dies at the carrier, the mailbox is innocent.If the ladder ends cleanly and the message is missing, the mailbox and the voicemail policy are the next read.
Teams voicemail is Cloud Voicemail into Exchange.Check the mailbox when the call itself succeeded.
Events, not a phone tree hidden in a form. Exchange and Cloud Voicemail still needs a human escape.Dependency chain. Counts in this drawing are teaching order, not customers.
Which description of Resource account is accurate?
A disabled-for-sign-in Entra account that represents an auto attendant or a call queue. It is not a human login. The published number is often this account, not a person. Source: https://learn.microsoft.com/en-us/microsoftteams/aa-cq-manage-resource-accounts accessed 2026-10-14.
A colleague reports: Agents try to sign in as the queue and the sign-in is correctly blocked. Where do you start?
Agents try to sign in as the queue and the sign-in is correctly blocked. Create it with a Teams admin role and the User Administrator role. Source: https://learn.microsoft.com/en-us/microsoftteams/aa-cq-manage-resource-accounts accessed 2026-10-14.
Which description of Cloud Voicemail is accurate?
The Teams voicemail service. It deposits messages in the user’s Exchange mailbox. No mailbox means no voicemail, even when the call routed. Source: https://learn.microsoft.com/en-us/microsoftteams/cloud-voicemail accessed 2026-10-14.
Microsoft 365 tenant The boundary that holds Entra ID, licenses, Teams policies, and verified domains for one organization. Config: Confirm the tenant before you run Connect-MicrosoftTeams. Fault: Two engineers edit two tenants and each thinks the other broke the trunk.
Verified domain A domain added and proven in the tenant. Direct Routing SBC FQDNs must live on one of these domains. Config: Add the domain, including a sip subdomain, before you pair the gateway. Fault: Pairing fails because sbc.contoso.com was never verified.
onmicrosoft.com domain The default tenant domain. It is not a supported domain for a Direct Routing SBC FQDN. Config: Use a domain you verified, such as contoso.com. Fault: The gateway object is rejected or never becomes healthy.
Homed online Direct Routing users must be homed in Microsoft 365, not left on a Skype for Business on-premises registrar. Config: Check the user’s registrar before you assign a voice routing policy. Fault: The policy is assigned and the call never leaves the legacy system.
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
Callers finish the greeting and the user never sees a message.
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 — 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
