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Ring Frequency
You can configure how long the Ring Frequency do you
want to use.
FXO Battery Reverse
Enable battery reverse to detect polarity from PSTN line.
The PSTN line can send H.323 case: Sending the Q.931
connect signal to caller when detecting polarity reverse
from PSTN Line.
FXO Answer Mode
When user calls the PSTN line which was connected with
the FXO port, there are three answer mode for user to
configure.
1. Ringing Answer Mode (Default Setting): FXO answer
the call once the ring coming from PSTN line.
2. Connecting Answer Mode:
Case A: “Hot Line Number” was NOT assigned in the
FXO port. FXO answer the call once the ring comes
from PSTN line.
Case B: “Hot Line Number” was assigned and the Hot
line number belongs to remote VoIP device.
In this case, FXO port will not answer (off-hook) the
PSTN till the user picks up the call.
(Note: This case can avoid charging for the Local
PSTN call when the remoting VoIP devic still ring.)
Case C: “Hot Line Number” was setting and the Hot
line number was assigned to another FXS port in
same Gateway. FXO port will not answer (off-hook) till
the Phone (connected to the FXS port) was picked up
by user.
(Note: This case can avoid the Local PSTN charge
when the FXS port still ring.)