Draytek Vigor2910 Series, User Manual

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Vigor2910 Series User’s Guide 146
type in backup phone number (PSTN number) for this VoIP
phone setting.
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For the convenience of user, this page allows users to edit prefix number for the SIP account
with adding number, stripping number or replacing number. It is used to help user having a
quick and easy way to dial out through VoIP interface.
Enable Check this box to invoke this setting.
Match Prefix The phone number set here is used to add, strip, or replace the
OP number.
Mode 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 will be
replaced 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 prefix number of 03 will
be replaced by 8863. For example: dial number of
“031111111” will be changed to “88631111111” and sent to