Currently I am doing a Skype for Business migration for a large enterprise. The current phone system is Cisco Call Manager and I am migrating everything to Skype for Business / Microsoft Teams in Office 365. I am at a point where I have migrated a majority of my local users but I want to make sure I grab all available phone numbers I can. These phone numbers could be left from old users, systems, etc.
ImportExcel PowerShell Module
To make this work easier, I am going to be using the ImportExcel PowerShell module. I could use Export-CSV but then I will end up with several CSV data files to work with, and it can get confusing quick. Installing the module is easy as it is available on the PSGallery.
Gathering the Phone Data
Export Phone Numbers in Skype for Business Portal
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