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Step 9: Enable the auto dial feature. (Skip this step if not necessary.)
Go to the Port Settings interface to enable the auto dial feature and set the parameters ‘Auto Dial
Number’ and ‘Wait Time before Auto Dial’. If there is no dialing operation in a time period (i.e. Wait
Time before Auto Dial) after pickup, the port will automatically call the preset number (i.e. Auto
Dial Number). Refer to
3.5.1 Port
for detailed instructions.
Step 10: Enable the DND (do not disturb) feature. (Skip this step if not necessary.)
Go to the Port Settings interface to enable the DND feature. Then, the FXS port will reject all
incoming calls. Refer to
3.5.1 Port
for detailed instructions.
Step 11: Enable the call waiting feature. (Skip this step if not necessary.)
Go to the Port Settings interface to enable the call waiting feature. Then the corresponding FXS
port while in conversation can accept another call from IP and keep it in the waiting state. Once
the current conversation is finished and the station hangs up, the call in the waiting state will ring
the station and wait for answer. During the time in the waiting state, it will always hear the ringback
tone from the FXS port. Refer to
3.5.1 Port
for detailed instructions.
Step 12: Perform call forwarding. (Skip this step if not necessary.)
Situation 1: Hook-flash operation
Figure 2-2 Call Forward via Hook-flash
As shown above, Remote A initiates and establishes a call with Station. Then by a hook-flash
operation, that is, a rapid clap on the hook or pressing the ‘flash’ button on the phone set, Station
can forward the call to Remote B.
Once a flash is generated, Station will go into the dialing state (the FXS port sends it dialing tones)
before it dials the forwarding number.
If the dialing succeeds, the FXS port will send ringback tones to Station. Provided Remote B picks
up the call, at this time Station can
：
a) Directly talk with Remote B;
b) Perform another hook-flash operation to switch the call to either Remote A or Remote B.
c) Hang up to make Remote A and Remote B go into a direct talk with each other.
If the dialing fails, the FXS port will send busy tones to Station. At this time Station can
：
a) Hang up to go back to the ringing state; then pick up the call again to recover the talk
with Remote A.
b) Perform the hook-flash operation again without hanging up the call to recover the talk
with Remote A.
Once Station recovers the call with Remote A, it can forward the call again by a new hook-flash
operation.
Situation 2: Automatic call forward
Go to the port setting interface to enable the automatic call forward feature and fill in a forward
number. According to what you set, the SMG analog gateway can automatically forward the
incoming calls on three conditions: unconditional, busy, no reply. Note that this feature is
SMG Series Analog Gateway User Manual (Version 1.0)
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