switchover(An administrator-initiated action in which one or more passive copies of the mailbox database are being activated and designated as the active copy. An administrator can perform a database switchover, which is the activation of a single mailbox database copy, or an administrator can perform a server switchover, which is the activation of multiple mailbox database copies)
switch(To change the modality of a conversation from, say, voice call to video, starting from a pop-up notification); swap(To switch between active calls); change(To modify the value of a property or attribute)
