Rev 3.0 B 2/29/08 27
outgoingrawTCPortelnetconnectionstoremoteservers.In
addition,themodememulationfeaturemaybeenabledto
allowaserialporttomimicamodeminterface.
• Whenusingthemodemserviceontheport,thephone
numberwillbetranslatedtoahost/portpairthenaTCP
connectionwillbeestablishedtotheremotehost.
• Whenusingoutgoingconnectionsontheport,thesettings
configuredontheSerialSettingspagewillbeappliedto
theport,andaTCPconnectionwillbeestablishedtothe
remotehost.
• Onceconnected,datareceivedontheportissenttothe
remoteserveroverthenetworkconnectionanddata
receivedonthenetworkconnectionissentouttheport.
Figure 2-5: Host RJ-11 IP Gateway: Port Services
• NoOutgoingService:Disablesoutgoingportserviceson
thespecifiedport.Incomingconnectionsarestillallowed.
Allportservicesoptionswillresettodefaults.
• ModemService:Enablesmodememulationonboththe
incomingandoutgoingnetworkconnections.Thetarget
peer(specifiedinthePhoneNumberTranslationtableand
configuredintheProtocolSettingspage)determinesthe
typeofoutgoingconnectionthatwillbemade.