Hi Shawn Schiebrel,
Thank you for posting your question in the Microsoft Q&A forum.
From what you've described, you're looking to create a centralized list of phone contacts for various property management offices that do not have email addresses or Teams accounts so that all Teams Voice-enabled users in your organization can easily search for and call them via PSTN.
After conducting available resources, it appears that Microsoft Teams currently does not support creating global, organization-wide phone contacts that are searchable and callable across all users in the Teams People app without involving email or guest user provisioning.
However, we are actively exploring possible workarounds to help achieve your goal. One potential approach is to use PowerShell to extract a contact list from one user and replicate it across other users in your tenant. This could help centralize contact management without requiring manual input from each individual user.
At this time, we are actively conducting a series of internal tests to further investigate the feasibility of this solution. As this process involves multiple layers of configuration and synchronization between services, it may take a bit of time to ensure we’re covering all possible angles. Our goal is to be as thorough as possible so that we can provide you with accurate and effective support.
We completely understand how important this is for your environment, and we truly appreciate your patience while we work through it. Please rest assured that as soon as we have any findings or updates, I will get back to you immediately.
Thanks again for your cooperation and understanding. If there’s anything else you’d like to share in the meantime, feel free to reach out.
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