LG LDP7004N/D - Manual (Page 9)

General Functions
700$N/D User Guide | General Functions 08
Placing and External/Internal Call on hold
Whilst connected to another party (internal or external)
press the button.
Fig.5 shows that the relevant line on your 7004N/D
digital telephone will be flashing to indicate that a
caller is on hold.
Retrieving an External/Internal Call on hold
If you are ‘Off-Hook’ (holding the handset) simply hang
up (replace the handset), press the relevant flashing
line key or dial the extension number of the station that
you placed on hold and you will be reconnected.
NOTE: Calls will ‘Recall’ to your station after a pre-set
time if you forget about them.
Fig.5