405 and 405HD IP Phone
User's Manual 72 Document #: LTRT-12045
5. In the idle screen to which you're returned, view the 'Forward' indication.
A.2.7 Listening in Capability for Call Center Supervisors
Call center supervisors can pick up an operator's phone and listen in on the conversation that the
operator is conducting on headphones with the customer, without the customer at the other end
sensing that the supervisor is listening in (because the supervisor is in effect muted).