– "Manual" (default): Set the IP addressinformation manually.Note• Even if you have selected "Auto", you stillmay not be able to acquire an IP addressdue to problems such as networkcongestion. In this case, "Address is notassigned" is displayed in the upper right ofthe Home screen. Contact your networkadministrator.• To select "Auto", "Static NAT" must be setto "OFF"."IP Address": Enter the IP address for the localsite."Subnet mask": Enter the subnet mask."Default Gateway": Enter the IP address of thedefault gateway.Note• "IP Address", "Subnet mask", and"Default Gateway" can be entered only if"IP Address" is set to "Manual".• If the value for "IP Address", "Subnetmask", or "Default Gateway" contains 1 or2 digits numbers, enter these numbers asthey are. Do not enter like [.001].Example: The IP address is [192.168.0.1].– Correct entry: [192.168.0.1]– Wrong entry: [192.168.000.001]"SIP Server": Use [ ][ ] to select "ON" or"OFF" (default).– "ON": You can communicate using a SIPserver.– "OFF": You cannot communicate using a SIPserver.Note• If SIP settings have not been configured onthe SIP settings screen, you cannot select"ON" (Page 102). For details, contact yournetwork administrator.• To select "ON", "Gatekeeper" must be setto "OFF".• If video conference calls cannot be madebecause there is a problem with the SIPserver, the SIP settings are incorrect (on theserver, or on the unit), etc., "Notregistered" will be displayed on the Homescreen instead of the SIP user name. In thiscase, you cannot make calls using either IPaddresses or SIP. Contact your networkadministrator."SIP Transport Protocol": Use [ ][ ] to selectbetween protocols (UDP, TCP, or Auto [default])used when communicating via SIP.Note• When "Auto" is selected, if using a SIPserver, TCP will be used forcommunication, and if using an IP addressor MCU’s conference room number@IPaddress, UDP will be used forcommunication. Normally, select "Auto"."Gatekeeper": Use [ ][ ] to select "ON" or"OFF" (default).Note• To select "ON", "SIP Server" must be setto "OFF".• "ON" cannot be selected unless thegatekeeper settings have been made on theH.323 settings screen (Page 104). Fordetails, contact your network administrator.• If video conference calls cannot be madebecause there is a problem with thegatekeeper and H.460 server, the H.323settings are incorrect (on the gatekeeperand the H.460 server, or on the unit), etc.,"Not registered" will be displayed on theHome screen instead of the H.323extension/H.323 name. In this case, youcannot make calls using either IPaddresses or the gatekeeper and H.460server. Contact your network administrator."H.460": Use [ ][ ] to select "ON" or"OFF" (default).Note• To select "ON", "Gatekeeper" must be setto "ON" and "Static NAT" must be set to"OFF".• "ON" cannot be selected unless thegatekeeper settings have been made on theH.323 settings screen (Page 104). Fordetails, contact your network administrator."Static NAT": Use [ ][ ] to select "ON" or"OFF" (default).Note• To select "ON", "IP Address" must be setto "Manual" and "H.460" must be set to"OFF".• "ON" cannot be selected unless the WANIP address of the router has been set on theUser Manual 113Contacts and Settings