D-Link Mobile DWM-156 User Manual page 17

hours/A day/A week/The longest period. The default setting is a longest period permitted by the network.
Delivery Report: Set "Turn On" or "Turn Off". When it is set as "Turn On", the network will inform you of the status for the sent
messages.
Location of Saving New SMS: Select "Default" to save according to the modem; Select "PC" to save in laptop or desktop PC;
select "(U)SIM" to save in (U)SIM card.
17