Enable Proxy .............................................................................................................78Proxy Server Address ...............................................................................................78Proxy Server Port ......................................................................................................784.3.4 Global Address Detection ...............................................................................................784.3.4.1 Global Address Detection ............................................................................................79Detection Method ......................................................................................................79Detection Interval ......................................................................................................794.3.4.2 STUN Server ...............................................................................................................79STUN Server Address ..............................................................................................79STUN Server Port .....................................................................................................804.3.5 Static NAPT Settings ......................................................................................................804.3.5.1 Global IP Address ........................................................................................................80Global IP Address .....................................................................................................804.3.5.2 Enable Global IP Address Usage per Line ..................................................................81Line 1–Line 4 ............................................................................................................814.3.5.3 External RTP Port ........................................................................................................81Channel 1–25 ...........................................................................................................814.4 System .............................................................................................................................824.4.1 Web Language ...............................................................................................................824.4.1.1 Web Language ............................................................................................................82Language ..................................................................................................................824.4.2 Administrator Password .................................................................................................824.4.2.1 Change Administrator Password .................................................................................83Current Password .....................................................................................................83New Password ..........................................................................................................83Confirm New Password ............................................................................................834.4.3 Change User Password .................................................................................................844.4.3.1 Change User Password ...............................................................................................84Current Password .....................................................................................................84New Password ..........................................................................................................84Confirm New Password ............................................................................................854.4.4 Web Server Settings ......................................................................................................854.4.4.1 Web Server Settings ....................................................................................................85Web Server Port .......................................................................................................85Port Close Timer .......................................................................................................864.4.5 Time Adjust Settings ......................................................................................................864.4.5.1 Synchronization ...........................................................................................................87Enable Synchronization by NTP ...............................................................................87Synchronization Interval ............................................................................................874.4.5.2 Time Server .................................................................................................................87NTP Server Address .................................................................................................874.4.5.3 Time Zone ...................................................................................................................87Time Zone .................................................................................................................874.4.5.4 Daylight Saving Time (Summer Time) .........................................................................88Enable DST (Enable Summer Time) ........................................................................88DST Offset (Summer Time Offset) ............................................................................884.4.5.5 Start Day and Time of DST (Start Day and Time of Summer Time) ...........................88Month ........................................................................................................................88Day of Week .............................................................................................................88Time ..........................................................................................................................894.4.5.6 End Day and Time of DST (End Day and Time of Summer Time) ..............................89Month ........................................................................................................................89Day of Week .............................................................................................................90Time ..........................................................................................................................914.5 VoIP ..................................................................................................................................91Document Version 2011-06 Administrator Guide 5Table of Contents