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Microsoft Teams is designed for the cloud to be agile at massive scale to amplify the value of Office 365.
Teams are clients utilizing Teams services, Office 365 services, the Skype infrastructure and Azure. A "Team" in Microsoft Teams consist of a modern group (Office 365 group), a SharePoint site and a set of "Channels".
If you get a message and have not used Teams in the last 60 to 90 minutes you will get an email about it. If you paste a URL into a Teams channel the URL preview service will display a preview so that people will see what it is before clicking it.
Data at rest resides in your region based on your tenant affinity, and this will shift to even more local in country storage in the future.
The conversations are stored in memory when sent - for speed, but also in Azure (blob, tables, queues) and in Exchange. Files used in a team/channel conversation are stored in SharePoint. Teams utilizes O365 Information Protection tools so that features like eDiscovery, Legal hold and Retention policies can be used on the stored data.
You can invite guests, and revoke access to guests through the AD token in the tenant that represents the guest. If you need to block the option of creating a Team in Teams, you can block the option of creating groups in AD.
Questions and Answers
Giving someone guest access - will this not give access to all the underlying infrastructure, what about access rights and licensing?
Yes, the guest is a guest in the "Azure AD" tenant, not only in Teams (licensing not answered.)
Is the meeting scheduling process quicker than in Skype for Business if we try to create like 1000s of meetings?
Yes/No, the scheduling is done using the Exchange Online calendar.
Will Teams work with Skype for Business on-premises?
Yes, they can run side-by-side.
What about Teams "replacing" Skype for business?
A lot of the core capabilities are already there. Certain things like data residency, broadcast meetings and non-persistent chat is not in Teams yet, however we will see a lot of activities during next year to bring feature parity (and better) between the products. A gradual move of users to Teams will take place and have already started.
Files stored in Onedrive for business - in who's Onedrive?
In 1-on-1 chats files will stored in Onedrive for business and permissions automatically assigned to the peer you are chatting with.
Will it be possible to programmatically create teams?
Yes, the ability to create teams, add members etc, is on the roadmap. (coming this year.)
How about delegation?
It is not availble now, but is coming.
Can we configure the set of connectors available to the users?
Can we support naming conventions when creating teams?
Teams will honor the naming conventions used for groups (available, but not in all tenants just yet.)
Will the Teams calendaring feature work with Exchange Online vNext?
Are there plans to replace the Onedrive storage with something else?
No, not at this point.
What happens if we move a mailbox from on-premises to online?
The data will merge.
Can we have individual permissions per Channel?
This is a big ask from customers and is "in process", so soon yes.
Can we migrate a Team from on tenant to another?
No, not at this point.
Can we define retention policies for chats and for team conversations?
Yes, this is being worked on right now and released soon.
Will Teams have to be changed in order for customers to adhere to the new EU GDPR rules?
Teams will support GDPR requirements when it must be enforced in May 2018 (as well as all of Office 365.)
Can we use the conferencing hardware for Skype room systems in Teams?
Yes, this is coming during next year.
How does authentication in the desktop client use?
Standard Azure authentication is used.
Is the number of people allowed in a team going to be increased?
Yes, the current limit of 999 persons per team will be increased very soon.
In a 1-to-1 chat, is messages from both participants stored in both users mailboxes?
Yes, and for guests in the cloud storage.
Will it be possible to integrate an existing SharePoint site with a team?
Yes, a tab can be added and point to a specific SharePoint site.
Is voicemail available in Teams?
Can we verify that different Data residency requirements for a Team with people from 5 different countries are met?
Data residency is done per tenant.
Can Teams use on-premises or a hybrid SharePoint for the Teams site?
No, Teams work with SharePoint Online only.
Will I be able to sign-in to two different tenants from the Teams client?
No, not right now, but the guest access concept will change over time, and something similar to the current Skype for business federation will come.
Can we audit failed access attempts to a team, or private channels?
Not now, good feedback.
Will media flow peer-to-peer in a Teams call?
Yes, if not blocked by firewalls.
In a Teams meeting will one or several MCUs be used?
A single "Home MCU" will run/mix the meeting.
Will there be APIs or ways to programmatically control a Teams MCU/meeting?
There are "hooks" available, and more of this is on the roadmap.
Are there plans for an on-premises version of Teams?
What are the plans for CCE-like functionality for Teams?
The plans are to certify SBCs to connect directly to the cloud voice solution, so an on-premises SIP Trunk could be connected to the colud. CCE will not be needed in the future.