With Exchange Online 2010 (Office 365) you can create and manage Unified Messaging (UM) by creating UM dial plan, configuring ‘on premise’ UM gateway….
Unfortunately, you can’t delete the UM dial plan even if it has not been associated or used.
Benoit's Corner
Personal blog on Microsoft technologies (Exchange, Skype for Business, SharePoint, Office 365,Azure, Intune, SCCM...)
Benoit's Corner
Personal blog on Microsoft technologies (Exchange, Skype for Business, SharePoint, Office 365,Azure, Intune, SCCM...)