87
SIP Operation Manual
Example for Match phone numbers invited by callers
The table below is provided as a general reference expresses phone numbers dialed by the
gateway instead of real phone numbers that callers dial.
Match
Scheme
Description
The same as “FXS
Representative Number”
Ring FXS according to “FXS
Group Hunting / Ring
Priority” settings
The same as “FXO
Representative Number”
Off hook a FXO
It is not applied to registration with SIP Proxy
The same as “FXS
Representative Number
+ Extension Number”
Ring or off hook the
Extension
If Extension line is FXS, it should ring.
If Extension line is FXO, it should off hook
It is not applied to registration with SIP Proxy
The same as FXO
Extension Number
Off hook the FXO
A Prefix is the same as
“FXS Representative
FXO Extension
Number”
Eliminate a Prefix and use
remaining digits to route
calls via FXO
FXS Representative Number is 2252 and
one of FXO Extension is 070123456
If callers dial 2252070123456 6371, the
gateway dial 6371 via FXO Extension
A Prefix is the same as
FXO Extension Number
Eliminate a Prefix and
use remaining digits to route
calls via FXO
One of FXO Extension is 070123456
If callers dial 070123456 6371, the gateway
dial 6371 via FXO Extension
Differ from FXS/FXO
numbers
Use these digits to route
calls via FXO
If callers dial 6371, the gateway dial 6371 via
one of FXO line
