Sharp SCH-R850 - Manual (Page 122)

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Tip: This feature can be valuable during emergency situations, such as, a
home invasion. Disabling the Emergency call alert tone can prevent a
home invader from locating you by means of that tone.
1. From The Security sub-menu, select Emergency
Ringback. The following options appear in the display:
• On — Your phone plays an audible alert tone during Emergency
calls.
• Off — Your phone does not play an audible alert tone during
Emergency calls, but does vibrate.
2. Select the desired Emergency Ringback setting.
Master Reset
Reset Phone returns all Settings to their factory default values.
1. From The Security sub-menu, select Master Reset. You are
prompted to confirm that you want to restore default
settings (except for the Contacts and Voice Dial).
2. To return to the Security sub-menu without resetting the
phone, press No. To restore default settings, press Yes.
Erase All Contacts
Erase memory erases your Contacts and Group information
(except Default). This feature is useful if you want to give your
phone to someone else.
1. From The Security sub-menu, select Erase All Contacts. You
are prompted to confirm erasure of all Contacts entries.
Note: This procedure does not delete your Photo Gallery. The Photo Gallery
needs to be deleted separately.
2. To erase all entries, press Yes. To keep the current entries
and return to the Security sub-menu, press No.
Restrictions
Restrictions lets you restrict the use of your phone for outgoing
calls, incoming calls, and calls placed from your Contacts.
1. From The Security sub-menu, select Restrictions. The
following options appear in the display:
• Calls — Lets you restrict the following call types:
– Incoming — Lets you Allow All incoming calls, Allow incoming calls
only from Contacts, or Allow
None (No incoming calls).
– Outgoing — Lets you Allow All outgoing calls, Allow outgoing calls only
to Contacts, or Allow
None (No outgoing calls).
• SMS Messages — Lets you restrict the following Text message
types:
– Incoming — Lets you Allow All incoming Text messages or Allow
None (No incoming Text messages).
– Outgoing — Lets you Allow All outgoing Text messages or Allow None
(No outgoing Text messages).
• MMS Messages — Lets you restrict the following Picture and
Video message types: