Fig 70
Auto Mode Flow Diagram
Auto mode is different compared with normal mode, because FXO of R32 does not pick
up and get the call when it detects the incoming call from PSTN side. Instead, it will transfer
the call to the destination number which is set before in IP side, and only after it receiving the
connecting signals from IP side, FXO will be in pick up status. In this way, the system can
guarantee the billing of PSTN-FXO and FXO-IP phase is in synchronization, so that the
problem of starting billing in PSTN side without getting through will not happen.
The key point of Auto mode is how to get destination of IP side automatically. R32
designates it through configurations.
You need pay attention that, user of PSTN side will always hear ringback tone no matter
user of IP side is busy or available, because FXO is not in picking up status, so that user of
PSTN side can not get the real situation of IP side.
Auto mode can also support Caller ID of PSTN side transport transparently function.
Related Configurations:
Step 1: Advanced Configure ---> FXO ---> FXO Advanced Configuration: “Working
Mode” = “Auto Mode”; ( refer to section
5.4.2
)
Step 2: Advanced Configure ---> FXO ---> FXO Advanced Configuration ---> Click
“display Auto FWD NBR”; ( refer to section
5.4.2
)
Step 3: Advanced Configure ---> FXO ---> “Enable PSTN CallerID” = “Yes”; ( refer to
section
5.4.2
)
Step 4: Advanced Configure ---> FXO ---> “Ring Times Detected” = “2” ( For detecting
incoming call signal, and should be more than 1 time ); ( refer to section
5.4.2
)
Step 5: NBR Exchange ---> ChangeRule ---> Number Change Rule Table:
“ChangeType” = “DelPrefix”, “ChangeLen”= 1; (refer to section
5.5.3
)
Step 6: NBR Exchange ---> CallerChange ---> Caller Number Change Rule Index:
configure “Caller Number Change Rule Index”. ( refer to section
5.5.5
)
