Value Range IP address in dotted-decimal notation ("n.n.n.n" [n=0–255]) (Max.15 digits)Default Value Not stored.4.4.5.2 Enable Global IP Address Usage per LineLine 1–Line 6Description Selects whether to enable the NAT Traversal feature for each line.Value Range • Yes• NoDefault Value No4.4.5.3 External RTP PortChannel 1–25Description Specifies the external RTP port number used for voice communicationfor each channel.Value Range 0, 1024–49150 (0: Disable, even number only)Note• Each channel must be set to a unique port number, and all portnumbers must be an even number.• You cannot specify here the same port number as any of theport numbers specified for the individual lines in [SourcePort] in 4.6.2.5 SIP Source Port. In addition, you cannotspecify a port number that is 1 less than a port number specifiedin [Source Port] if the source port number is an odd number.• All channels must be enabled or all channels must be disabled,at the same time.Default Value 04.5 SystemThis section provides detailed descriptions about all the settings classified under the [System] tab.4.5.1 Web LanguageThis screen allows you to select the language used for the Web user interface. The language setting is onlyapplicable when you log in to the Web user interface as User.66 Administrator Guide Document Version 2011-11Section 4 Web User Interface Programming
