To reach the Text Messaging advanced settings, from the Browse Messages screen, press Menu , then select Settings. Press Menu again and select Advanced Settings. Two settings are available in the Advanced group box:

• Use Custom Service Center number - Enter a number in the Phone Number box only if your wireless operator advises you to do so.
  
  
• Message validity period - This number refers to how long your outgoing messages will attempt to be delivered. Leaving the setting at the default number of days should be fine.

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