Kyocera ENERGI K490 - Manual (Page 71)

User Guide for the Kyocera K490 Phone 49
2. Press up or down through the list of messages. One of the following
symbols appears next to each message:
The message is pending and will be sent when possible. You can cancel
delivery of the message.
The scheduled message will be sent at the scheduled time. You cannot
cancel delivery of the message.
The message cannot be sent because service is not available. An alert
appears on your phone if the message cannot be sent.
The scheduled message has been sent and will be delivered as
scheduled. You cannot cancel delivery of the message.
The message has been received by the recipient you specified.
The message has been received and opened by the recipient you
specified. (This symbol may not be available. Check with your service
provider.)
The message has been sent to more than one recipient.
The message has never been sent, or has not been sent since it was last
modified. You can cancel delivery of the message.