Samsung SCH-U365WSAVZW - Manual (Page 80)

Messaging 75
• Callback #: Choose On to add a callback phone number to
your messages, and set the phone number. Choose Off to omit
a callback number (you can manually add a callback number
when composing messages).
• Signature: Choose Custom to add a signature to all
messages, then use the Directional Key to move to the
signature field to create the signature. Choose None to disable
signatures.
• Delivery Receipt: Choose whether you are notified when a
message you send is delivered. Choose On to be notified for
every message, or Off to disable notification (you can set an
optional delivery receipt for individual messages).