View Current Announcements
get-CsAnnouncement
Remove Announcement
remove-CsAnnouncement
EG
remove-CsAnnouncement -Identity: ApplicationServer:Lync2010.company.com/b5c9c298-ad14-4b28-a6
87-fc2b811cf262
Find Identity using get-CsAnnouncement command
Create New Announcment
new-CsAnnouncement
EG's
New-CsAnnouncement -Parent service:ApplicationServer:lync2010.company.com -Name "Main Number" (RGS_MainNumber@company.com)" -TargetUri sip:RGS_MainNumber@company.com
For more information on these commands use the -? command.
EG - new-CsAnnouncement -?