User manual
Public Port: Specifies which port should be redirected to the internal host.
Private IP: Specifies the private IP address of the internal host offering the service.
Private Port: Specifies the private port number of the service offered by the internal host.
Apply: Click here to add the port-mapping entry and enable the service.
4.4 VoIP Basic Configuration
At VoIP Basic Configuration Items,
4.4.1 Configure the VoIP protocol. H.323 and SIP Protocol Support
H.323 Protocol:
VoIP gateway support the H.323 v2/v3/v4 call signal protocol.
SIP Protocol:
VoIP gateway support the SIP call signal protocol (RFC 2543/3261 compliant).
4.4.2 Configure the numbering with phone/line ports.
Phone Number:
The representation number is the phone number of the telephone that is connected to Phone port.
Line Number:
Line ports are connected to the extension ports of the PBX system or the PSTN line. They have a
common Line Hunting Group Number. When this number is dialed, the Gateway system will find a
free FXO line connected to PBX. This hunting will skip all busy lines and absent lines and find only
the idle line to the PBX. After the available line is found, you can hear the dial tone from PBX. After
that, you can dial the needed phone number out through PBX.
4.4.3 Configure the CID number of the phone/line ports.