@Britt1972 Hi, well as long as the organizations are allowing guest access in Teams this will be the guest user experience (first link).

 

Comparison of team member and guest capabilities

Guest experience in Microsoft Teams - Microsoft Teams | Microsoft Docs

 

I'm assuming you also have external access involved which in turn make the user experience the following.

 

Compare external and guest access

Call and chat with users from other organizations - Microsoft Teams | Microsoft Docs

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