You must unlock at least one message before you can lock an additional message.
Important Note: You can still lose locked message if the battery drops too low.
Your pager will display, "BATT LOW". Try to replace the battery as soon as possible.
This will prevent you from losing an important message. See section 14 for more information.
11. Selecting Incoming Message Alert Tone or Vibration
In the Initial Setting, the Alert Tone is set. However, you may change from Alert to Vibration Mode.
Initial Setting (Alert Mode)
press Menu button
press Select button
Vibration Mode
Содержание ISP-5900
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