LG VS660 - Manual (Page 183)

Storage settings
Delete old messages Checkmark to allow the phone to delete
older messages in a thread when the Text message limit or
Multimedia message limit is reached. Remove checkmark to keep
all messages.
Text message limit Sets the number of messages to save per
thread of text messages.
Multimedia message limit Sets the number of messages to save
per thread of multimedia messages.
Signature Touch to checkmark and create a customized signature
to include with your outgoing messages.
Callback Number Touch to checkmark and open a dialog box to
view or edit the callback number sent with your messages.
Text message (SMS) settings
Delivery reports Checkmark to allow your phone to receive
delivery reports for the messages you send.
Multimedia message (MMS) settings
Delivery reports Touch to checkmark and allow your phone to
receive a report on the messages you send.
Auto-retrieve Touch to remove the checkmark to download only
the heading of multimedia messages, which you can then touch to
open a menu to download the whole message. This is useful for
controlling how much data you download.
Roaming auto-retrieve Touch to remove the checkmark to download
only the heading of multimedia messages when connected to other
carrier
' s data networks. This is useful for avoiding unexpected
charges if your contract has limits on data roaming.
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Communication