Read a received instant message
In the standby mode, when you are connected to the instant messaging
service, and you receive a new message that is not a message associated
with an active conversation, New instant message is displayed. To read
it, select Read. If you receive more than one message, scroll to the
message, and select Open.
New messages received during an active conversation are held in
Instant messages > Conversations. If you receive a message from
someone who is not in IM contacts, the sender ID is displayed. To save a
new contact that is not in the phone memory, select Options > Save
contact.