Draytek Vigor 2700 User Manual page 110

Enable
Prefix Number
Mode
OP Number
Min Len
Max Len
Interface
P S T N
P S T N
Some emergency phone (e.g., 911) or special phone cannot be dialed out by using VoIP and
can be called out through PSTN line only. To solve this problem, this page allows you to set
five sets of PSTN number for dialing without passing through Internet. Please type the number
in the field of phone number for PSTN relay.
104
S e t u p
S e t u p
Check this box to invoke this setting.
The phone number set here is used to add, strip, or replace the
OP number.
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 SIP server.
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.
Set the minimal length of the dial number for applying the
prefix number settings. Take the above picture (Prefix Table
Setup web page) as an example, if the dial number is between 7
and 9, that number can apply the prefix number settings here.
Set the maximum length of the dial number for applying the
prefix number settings.
Choose the one that you want to enable the prefix number
settings from the seven pre-saved SIP accounts (including
PSTN). The PSTN interface is available for 2700V (MODULE:
2S1L)/ Vigor 2700VG (MODULE: 2S1L) only.
Vigor2700 Series User's Guide