Welltech VoIP ATA series V.303 - Manual (Page 23)

ATA Web user guide
Welltech Technology Co., Ltd.
23 / 114 2015/1/8
(Figure 3)
Item Decription
Index Index number. There are 4 entries to configure ADD and Replace
dial codes.
Drop Prefix Default setting is “Disable” (It is also an Add digits feature) .
When it was set to “Enable” (It is also an Replacement digits
feature) and the number match the “Dial Rule” number, ATA will
replace the “Rule” field numbers and use “Prefix＂field number
instead.
Disable: Add prefix number in front of the called number when
called number match “Rule” number.
Enable: Replace “Rule” number with “Prefix” number when