Denwa Communications DW-820, User Manual

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Intercom, Speed Dial, History, Favorites, Redial, Account,
ACD, BLF, BLFList,Call Return, Hot Desking, Record, XML
Browser, DTMF.
8.10 Phone->Replace Rule
Sections Description
Rules Allow user to select Replace rule or Dial-now to display or
edit.
Rules Modify Allow user to modify selected rules information, for replace
rule, you can modify related accounts, prefix and replace.
Area Code Area codes are also known as NPAs (Numbering Plan Areas).
They usually indicate different geographical areas within one
country. If entered numbers match the predefined area
code rule, the IP phone will automatically prefix outgoing
number with area code.
Note : There is only one area code rule supported.