Anchor the pattern to the normalized number.List gateways with priorities.In this campus, priority 1 is tried first.Confirm the current article before you depend on a production tie-break.A second gateway that has never carried a call is a drawing.
Unassigned numbers you own should be treated on purpose, usually toward an attendant.A ported block with fifty silent numbers looks like an outage.
A voice route matches the normalized number and tries gateways in priority order.Rehearse the second one.
Round robin distribution for Voice routes and gateways. Overflow is a configured target.Priority in the teaching model. Counts in this drawing are teaching order, not customers.
A colleague reports: The pilot user is still on the global policy, which has no usages. Where do you start?
The pilot user is still on the global policy, which has no usages. Grant it to a test user and read it back with Get-CsOnlineUser. Source: https://learn.microsoft.com/en-us/microsoftteams/manage-voice-routing-policies accessed 2026-10-14.
Which description of Gateway priority is accurate?
Each voice route lists SBCs with a priority. Lower priority number is tried first in this campus’s teaching model. Confirm the current article before you depend on a tie. Failover is a list, not a wish. Source: https://learn.microsoft.com/en-us/microsoftteams/manage-voice-routing-policies accessed 2026-10-14.
A colleague reports: Both gateways are priority 1 and nobody knows which one took the call. Where do you start?
Both gateways are priority 1 and nobody knows which one took the call. Put the local SBC first and a remote SBC second, then pull the cable in a maintenance window. Source: https://learn.microsoft.com/en-us/microsoftteams/manage-voice-routing-policies accessed 2026-10-14.
Normalization The dial plan rewrites what a person dialed into a number the routes can match, usually E.164. The first matching rule wins. Config: Put the specific rules above the general ones. Fault: A catch-all rule is first, so the emergency rule never runs.
Tenant dial plan A set of normalization rules you assign to users. A user can have a more specific plan than the tenant default. Config: Grant the plan to the user and test from that user. Fault: You edit the global plan and a branch with its own plan does not change.
PSTN usage A name that links a voice routing policy to one or more voice routes. The policy’s ordered list of usages is the permission to place those calls. Config: Create the usage, attach routes, then put the usage on the policy in the right order. Fault: International works because the international usage was left on a branch policy.
Voice route A number pattern plus an ordered list of SBC gateways. It does nothing until a PSTN usage on the user’s policy points at it. Config: Anchor the pattern. Test with the normalized number, not the raw digits. Fault: The route expects 10 digits and the dial plan already added +1.
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
Both SBCs are priority 1 and nobody knows which one took the call.
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.
E.164 — 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