Draytek Vigor2910 用户手册

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页码 199
 
Vigor2910 Series User’s Guide 
112
 
Enable 
Check this box to invoke this setting. 
Prefix Number 
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 OP number of 8863 will 
be replaced completely by 03 for the prefix number is set with 
03
 
OP Number 
The front number you type here is the first part of the account 
number that you want to execute special function (according 
to the chosen mode) by using the prefix number.