Soundwin VoIP Voice Gateway User Manual page 49

FXO Ringer Voltage
Threshold:
FXO Ringer Voltage
filter:
FXS Battery Reversal
Generation:
FXO Answer Supervision
Line Silence Disconnect:
FXO Answer Delay Time
FXO Answer Mode
other Option.
Sometime you use FXO connect to PSTN/PBX can't be pick up
the call. PSTN/PBX can't detection FXO voltage, you can adjust
this function. Default is low.( Low : 16.5 Vrms Medium: 24 Vrms
High: 49.5 Vrms)
Some vendor's PBX generates the leakage voltage from
extension port. That will mislead the FXO become Off-hook
status. This function was set to avoiding a leakage voltage signal
is detected as ring coming.
Some Payphone need Battery Reversal to count call money.
Gateway FXS can generation that Battery Reversal. If you don't
use this function , don't enable it.
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.
SIP case: Sending the 200 OK connect signal to caller when
detecting polarity reverse from PSTN Line.
Voice Detection: when the FXO connect PSTN/PBX, gateway will
detection the PSTN/PBX send voice , it will send Q.931 connect
or SIP 200 ok.
When FXO call have silence, the call will disconnect
automatically. {Default is Disable}
Some PSTN/PBA when call incoming can't pick up first time. It
need delay few second time. You can set FXO pick up call delay
time.(default is 0)
FXO Answer Mode Concept:
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 come 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.)
3. Non Answer Mode: FXO will NOT answer the call in any time.
(Note: Some ITSP only let the FXO for termination function,
they do not user use the FXO port for origination)
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