Used this today to grab some simple Eskers Fax Number info.
Using the Quest Snapin
Get-QADUser -IncludedProperties otherFacsimileTelephoneNumber -SizeLimit 0 | Where { $_.otherFacsimileTelephoneNumber -ne $null } | Select DisplayName,SamAccountName,@{Name="Fax";Expression={$_.otherFacsimileTelephoneNumber -join ";" }} | Export-CSV C:\Temp\EskerList.csv –notype