You can place an active call on hold and resume the call when you are ready. When you place a call on hold, the held party may hear either a ringing tone or music as determined by either your phone system administrator or your TeleConsole's phone setting "While call ring play the caller" option.
Placing a Call on Hold
To place a call on hold, during a call, press 
or select Hold.
If you have multiple calls on the phone and the current call is held, you can tap the call directly to swap to the active call.
Resuming a Held Call
To resume a call press 
or select Resume.
If multiple calls are placed on hold, select the desired call first.
When you have multiple calls on the phone and the current call is active, you can tap the call directly to swap to the held call.