TIPTEL IP-280 Manual page 28

Enterprise IP Phone
2) Enter the desired Prefix and Replace.
3) Press Add button to save the changes.
4) You can also delete a specific one from the dial plan list by pressing Del button.
5) You can select a record to modify, then click Edit button to submit.
6) In the hidden page, users can set the Replace Rule Type: Replace All or Replace
Part.
7) Set to Replace All, then the number entered must be exactly the same as the
contents of the Prefix will be replaced. Set to Replace Part, it means the entered
number whose first several numbers is the same as the contents of the Prefix will
Customizing Your Phone
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