Set-SkypeAvailability

Set-SkypeAvailability.ps1

$LyncSDKLocation = 'C:\LyncSDK\LyncSDK\Assemblies\Desktop'
import-module "$LyncSDKLocation\Microsoft.Lync.Utilities.dll"
import-module "$LyncSDKLocation\Microsoft.Lync.Controls.dll"
import-module "$LyncSDKLocation\Microsoft.Lync.Model.dll"

<#
SDK - https://www.microsoft.com/en-us/download/confirmation.aspx?id=36824
Extract msi out of the exe and run that to get the required assemblies
    Microsoft.Lync.Utilities.dll
    Microsoft.Lync.Controls.dll
    Microsoft.Lync.Model.dll
#>


# Obtain the entry point to the Lync.Model API
$client = [Microsoft.Lync.Model.LyncClient]::GetClient()
$self = $client.Self;

#Set Details of Personal Note and Availability
#Useful availability codes for use below
# 3500 Available,
# 15500 Away (converted to "Off Work" in this script by setting activity ID),
# 6500 Busy,
# 9500 Do not disturb,
# 12000 Be Right Back

# Example - flicking through a few availability types each second
$availabilitys = @(9500, 3500, 15500)

while ($true)
{
    foreach ($availability in $availabilitys)
    {
        # set presence availability of the local user
        $contactInfo = new-object 'System.Collections.Generic.Dictionary[Microsoft.Lync.Model.PublishableContactInformationType, object]'
        $contactInfo.Add([Microsoft.Lync.Model.PublishableContactInformationType]::Availability, $availability)

        If ($availability -eq 15500)
        {
            $contactInfo.Add([Microsoft.Lync.Model.PublishableContactInformationType]::ActivityId, "off-work")
        }

        # publish availability change
        $publishAction = $self.BeginPublishContactInformation($contactInfo, $null, $null)
        $self.EndPublishContactInformation($publishAction)
        sleep(1)
    }
}