Compare external and guest access
| Feature | External access users | Guest access users |
|---|---|---|
| User can chat with someone in another company | Yes | Yes |
| User can call someone in another company | Yes | Yes |
| User can see if someone from another company is available for call or chat | Yes | Yes1 |
| User can search for users across external tenants | Yes2 | No |
| User can share files | No | Yes |
| User can access Teams resources | No | Yes |
| User can be added to a group chat | No | Yes |
| User can be invited to a meeting | Yes | Yes |
| Additional users can be added to a chat with an external user | No3 | N/A |
| User is identified as an external party | Yes | Yes |
| Presence is displayed | Yes | Yes |
| Out of office message is shown | No | Yes |
| Individual user can be blocked | No | Yes |
| @mentions are supported | Yes4 | Yes |
| Make private calls | Yes | Yes |
| View the phone number for dial-in meeting participants | No5 | Yes |
| Allow IP video | Yes | Yes |
| Screen sharing mode | Yes4 | Yes |
| Allow meet now | No | Yes |
| Edit sent messages | Yes4 | Yes |
| Can delete sent messages | Yes4 | Yes |
| Use Giphy in conversation | Yes4 | Yes |
| Use memes in conversation | Yes4 | Yes |
| Use stickers in conversation | Yes4 | Yes |
1 Provided that the user has been added as a guest and is signed in as a guest to the guest tenant.
2 Only by email or Session Initiation Protocol (SIP) address.
3 External (federated) chat is 1:1 only.
4 Supported for 1:1 chat for Teams Only to Teams Only users from two different organizations.
5 By default, external participants can’t see the phone numbers of dialed-in participants. If you want to maintain the privacy of these phone numbers, select Tones for Entry/exit announcement type (this prevents the numbers from being read out by Teams).If you don’t want to reveal external PSTN phone numbers to external users, when you turn on Entry/exit announcements, select Tones for the announcement type.