Blackberry 8330 - Manual (Page 209)

• In a notification profile exception, verify that the Custom Phone Tune field is not set to Mute.
I cannot set some fields when creating a Calls From notification profile exception
If you assign a custom ring tone to a contact in the address book, a Calls From profile exception appears in the profile list. Because these
exceptions are for calls only, you can only set the Custom Phone Tune field.
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