Central managed contacts list

Disclaimer: Since you are using English, although the site locale is set to nl‑nl (Dutch), I will use auto‑translation to respond to this question in English.

Dear @Robin Elzinga | Nicecloud,

I understand your concern. Microsoft Teams does not currently provide an out‑of‑the‑box feature for a centrally managed contact list across the organization that automatically resolves all incoming PSTN numbers to names for every user in exactly the way you described.

While Microsoft Teams integrates with your organization’s directory services, there is no dedicated “global contact list” feature specifically for PSTN caller identification that can be configured directly within Teams as a standard setting.

Instead, the way caller names are displayed for inbound external (PSTN) calls works as follows:

1/ Teams first checks the user’s personal People contacts

2/ Then checks organizational contacts stored in Outlook / Exchange (Global Address List) and Microsoft Entra ID. For more information and instructions, please refer to Manage mail contacts in Exchange Online + Create a global address list in Exchange Online + Address lists in Exchange Online

3/ If no match is found, Teams will display the information provided by the phone network (for example, the raw number or generic caller ID). For more information, please refer to Manage caller ID for users

Important Note

• Because personal People contacts are checked first, so two users may see different caller names for the same incoming number. This happens if each user has saved that contact differently in their own personal contact list.
• Therefore, I recommend maintaining organizational contacts in Exchange Online (GAL) for more consistent caller name resolution across users.

I hope the information shared helps point you in the right direction. Please try the steps above and let me know if they work. If not, we can continue working together to narrow this down.

The first response may not always resolve the issue right away, but with your help and more details, we can work toward a solution.

Thank you for your patience and understanding. If I misunderstand anything, please feel free to reach out. I'm looking forward for your reply.

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