32• Validity period: The period of time that you wish themessage to be available to the recipient. Options are:.• Deferred delivery: Allows you to decide when you wantyour message to be sent.• Delivery Acknowledge: If this is set to Request Ack,you will be notified if the message was successfullydelivered. Options are as follows:• Save sent message: Provides the following options onhow your message is saved:• Confirm or Revert: Confirms changes or reverts todefault settings. Options are as follows:Entering text, numbers, and symbols1. When entering events, numbers, or notes, press toview the following menu options:•Always •12 hours•30 min •1 day•1 hour •2 days•2 hours •3 days•Now •12 hours•30 min •1 day•1 hour •2 days•2 hours •3 days•Request Ack •No Request•Auto Save •Do Not Save•Prompt Save ••Confirm •Revert•T9 (English) • Alpha•Symbol • Number•Canned message