Simple powershell for Skype for Business

To connect to Skype for Business online:

• 
  Import-Module LyncOnlineConnector
  
  $credential = Get-Credential
  
  $session = New-CsOnlineSession -Credential $credential
  
  Import-PSSession $session
  

To check user SIP address:

• Get-CsOnlineuser -Identity "username@domain.com" |fl *sip*

Send on Behalf of in Powershell Exchange 2013

Below are the command to Grant Send on Behalf of a user in Exchange 2013:
set-mailbox MailboxName -GrantSendOnbehalfto ‘Username’

To check Send on Behalf of use this command:
Get-Mailbox Mailboxname | fl displayname, GrantSendOnBehalfTo