Kyocera 1135 - Manual (Page 76)

58 Sending and Receiving Text Messages
Erasing text messages
You have the option of erasing messages as you read them, erasing them
one-at-a-time from the list in the Text InBox, or erasing them all at once. It
is a good idea to erase old messages, as you have limited memory on your
phone.
Erasing single messages
1. Select Menu
→
Messages .
2. Press down and press to select the type of message you want
to erase ( Text InBox, Text OutBox, or Filed ).
3. Press to select the message to erase.
4. Select Erase to erase the message. A notification appears: “Erase this
message?”
5. Select Yes to erase the message.
Note: You can erase a scheduled message from the Text OutBox, but you
cannot cancel delivery of the message.