How to place a new call with a call on hold
When a call is placed on hold, you and the caller will no longer be able to hear one another. The caller will hear either silence or Music on Hold, depending on the preferences that the system administrator has configured.
The way that you put a call on hold depends on the type of phone you are using.
Yealink IP phone
Press the Hold softkey during a call to place a call on hold. Press the Resume softkey to resume the call.
If there are multiple calls on hold, use the up and down navigation buttons to select the desired call and then press the Resume softkey.
Mobile app
Press the pause softkey during a call to place the call on hold. Press the pause softkey again to resume the call.