Make the complaint reproducible
A dropped meeting should start an investigation before it starts a bandwidth purchase. JOTOglobal recommends recording the time, office, room, connection type and exact symptom: missing audio, frozen video or delayed sharing. Set up a repeatable internal meeting with consistent participants, devices and tasks. Record whether the problem follows one room, connection or busy period. A useful incident record gives an owner something to reproduce, rather than only a general complaint.
Use both organizational trends and individual records
Microsoft distinguishes CQD, which shows organization-wide quality patterns, from the Teams admin center, which supports investigation of individual users’ calls and meetings. JOTOglobal suggests assigning location comparisons to the network owner and individual cases to support staff, using a shared time window. One successful meeting does not prove that every branch improved; a better organization-wide average does not prove that a critical room has recovered.
Test one main hypothesis at a time
Write the hypothesis before choosing the change. If the room connection is suspected, compare two approved connection methods on the same device under comparable conditions. Avoid changing the computer, wireless settings and egress policy together: even an improvement would be difficult to explain. Authorized administrators should follow the change process, retaining the original configuration, recovery method and business contact. When a fault cannot be reproduced, collect more observations instead of reporting a guess as a diagnosis.
Accept the fix against real meeting tasks
Agree the acceptance sheet before making changes. Include sustained speech, group discussion, presentation sharing and room joining, with an observation period and agreed pass criteria. Repeat the checks during a comparable busy period and retain unresolved cases with named owners. Report experience, incident records and test coverage together. A test in one office must not become a claim about all global branches. This is JOTOglobal’s suggested delivery method, not a Microsoft certification or a promise that one network adjustment will solve every issue.
Source
Microsoft Learn — Prepare your organization’s network for Teams
https://learn.microsoft.com/en-us/microsoftteams/prepare-network