Exchange 2007 Availability Service
What we formerly new in Exchange 5.5, Exchange 2000 and Exchange 2003 as the Schedule+ Free Busy is now known as the Availability Service
The Availability Service is used to make free/busy information available for Outlook 2007 and Outlook Web Access clients. The Availability service provides free/busy information directly from the mailbox for users on Exchange 2007 and can be configured to retrieve free/busy information from public folders for users on earlier versions of Exchange Server. The Scheduling Assistant uses the Availability service to perform the following tasks:
- Retrieve current free/busy information for Exchange 2007 mailboxes
- Retrieve current free/busy information from other Exchange 2007 organizations
- Retrieve published free/busy information from public folders for mailboxes on servers that have versions of Exchange that are earlier than Exchange 2007
- View attendee working hours
- Show meeting time suggestions
- Use the Set-AvailabilityConfig cmdlet toset the access level for free/busy information.
Syntax
Set-AvailabilityConfig [-DomainController <String>] [-Instance <AvailabilityConfig>] [-OrgWideAccount <SecurityPrincipalIdParameter>] [-PerUserAccount <SecurityPrincipalIdParameter>] |
Detailed Description
- The Set-AvailabilityConfig cmdlet defines two accounts or security groups: a per-user free/busy proxy account or group, and an organization-wide free/busy proxy account or group. These accounts and groups are trusted by all availability services in the current organization for availability proxy requests.
- For cross-forest availability services to retrieve free/busy information in the current forest, they must be using one of the specified accounts, belong to one of the specified security groups, or have a user name and password for one of the specified accounts or security groups.
- To run the Set-AvailabilityConfig cmdlet on a computer that has the Client Access server role installed, you must log on by using an account that is a member of the Exchange Organization Administrators group. The account must also be a member of the local Administrators group on that computer.
Example
- The first example of the Set-AvailabilityConfig command is useful with trusted cross-forest availability service. If the remote forest is trusted, and per-user free/busy proxy account or group in the remote forest is configured to use the service account, the configuration is added to the current forest to authorize the ActiveSync request from the remote forest.
- The second example of the Set-AvailabilityConfig command is useful if the remote forest is not trusted. When you are prompted, type the user name and password. Because this account is used for a cross-forest free/busy proxy account or group, minimize security vulnerabilities by using the credentials of a user who does not have an Exchange mailbox.
- Set-AvailabilityConfig -PerUserAccount <domain name of servers group in remote forest>
- Set-AvailabilityConfig -OrgWideAccount <ExampleCredentials>
