H.323 Call Connecting Answer Mode - Soundwin VoIP Voice Gateway User Manual

3. When the phone was picked up, the remote SIP Gateway sends "SIP 200 OK" signal to FXO
port.
4. Once FXO port receive the "SIP 200 OK" signal, FXO port would off-hook to answer the
PSTN call.
Case C:
"Hot Line Number" was setting and the Hot line number was assigned to another FXS
port in same Gateway.
1. When the call com from PSTN to FXO, FXO start the Hot line dialing to FXS port.
2. The phone start ring.
3. Once the phone was picked up, FXO port would off-hook to answer the PSTN call.

H.323 Call Connecting Answer Mode

Case B:
Hot Line Number" was assigned and the Hot line number belongs to remote H.323
device.(Note: The remote H.323 device need Disable the "Auto
1. When the call com from PSTN to FXO, FXO start the Hot line dialing to remote H.323
gateway
2. The phone of remote H.323 gateway start ring.
3. When the phone was picked up, the remote H.323 Gateway send "Q.931 connect" signal to
FXO port.
4. Once FXO port receive the "Q.931 connect" signal, FXO port would off-hook to answer the
PSTN call.
Answer")
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