Decommission and Uninstall Lync 2013 Server

Question

I need to uninstall Lync 2013 servers from our environment. Looking at the following document,

https://social.technet.microsoft.com/wiki/contents/articles/29088.lync-20102013-step-by-step-server-decommissioning.aspx

Does any of the remove command delete any actual user mailbox, AD accounts?

Does it remove SIP address from AD user's Exchange 2016 mailbox? (we need to keep this)

Get-CSuser | Disable-CSuser
Get-CsExUmContact -Filter {RegistrarPool -eq "<LyncServerPoolFqdn>"} | Remove-CsExUmContact
Get-CsRgsWorkflow -Identity:Service:ApplicationServer:<LyncServerPoolFqdn> | Remove-CsRgsWorkflow
Get-CsDialInConferencingAccessNumber | where {$_.Pool -eq "<LyncServerPoolFqdn>"} | Remove- CsDialInConferencingAccessNumber
Set-CsPstnGateway -Identity "PstnGateway:<Xds Identity of PSTN Gateway>" -MediationServer:"MediationServer: <Name of Mediation Server Identity>" << not sure what this would be

Answer 1

Hi @JT

Does any of the remove command delete any actual user mailbox, AD accounts?

No, the following commands in your description do not delete the AD accounts and any actual user mailbox. It just disable the users in Skype for Business Server. If you need to delete AD users in your environment, you should run the command "Remove-ADUsers".

Does it remove SIP address from AD user's Exchange 2016 mailbox? (we need to keep this)

No, the command do not remove SIP address from AD user's Exchange 2016 mailbox.

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