Draytek Vigor2760 User Manual page 222

To edit a digit map profile, please do the following:
1. Choose the digit map profile you want and click the check box.
2. Click Edit to open the following page.
Available parameters are listed below:
Item
Enable
Match Prefix
Mode
Description
Click this to enable this entry.
It is used to match with the number you dialed and can be
modified with the OP Number by the mode (add, strip or
replace).
None - No action.
Add - When you choose this mode, the OP number will be
added with the prefix number for calling out through the
specific VoIP interface.
Strip - When you choose this mode, the OP number will
be deleted by the prefix number for calling out through the
specific VoIP interface. Take the above picture (Prefix
Table Setup web page) as an example, the OP number of
886 will be deleted completely for the prefix number is set
with 886.
Replace - When you choose this mode, the OP number
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Vigor2760 Series User's Guide