Draytek vigorphone 300 User Manual page 52

Destination
Port
Alias
Call Mode
Suffix(optional)
Delete Length
(optional)
Note: There are four types of aliases.
Add: xxx, it means that you need dial xxx in front of phone number, which will reduce dialing
number length.
All: xxx, it means that xxx will replace some phone number.
Del: It means that phone will delete the number with length appointed.
Rep: It means that phone will replace the number with length and number appointed.
You can refer to the following examples of different alias application to know more how to use different
aliases and this dial rule.
Examples of different alias application
Set by web
dial the prefix and a phone number to realize calling to what your prefix
number is mapped. The prefix number supports at most 30 digits.
Set Destination address. This is optional configuration item. If you want
to set peer to peer call, please input destination IP address or domain
name. If you want to use this dial rule on SIP2 line, you need input
255.255.255.255 or 0.0.0.2 in it.SIP3 into 0.0.0.3.
Set the Signal port, the default is 5060 for SIP.
Set alias. This is optional configuration item. If you don't set Alias, it
will show no alias.
Select different signal protocol, SIP or IAX2.
Set suffix, this is optional configuration item. It will show no suffix if
you don't set it.
Set delete length. This is optional configuration item. For example: if
the delete length is 3, the phone will delete the first 3 digits then send
out the rest digits. You can refer to examples of different alias
application to know how to set delete length.
Explanation
You need set phone number,
Destination, Alias and Delete Length.
Phone number is XXXT; Destination
is 255.255.255.255 (0.0.0.2) and
Alias is del.
This means any phone No. that starts
with your set phone number will be
sent via SIP2 line after the first
several digits of your dialed phone
number are deleted according to
delete length.
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Example
If you dial "93333", the
SIP2 server will receive
"3333"