8 3Com® VCX V7111 VoIP Gateway User GuideC HAPTER 10: A DVANCED S YSTEM C APABILITIES 299Restoring Networking Parameters to their Initial State 299Establishing a Serial Communications Link with the V7111 Gateway 300Automatic Update Mechanism 301Startup Process 303Using Parameter Tables 305Table Indices 305Table Permissions 306Dynamic Tables vs. Static Tables 306Secret Tables 306Using the ini File to Configure Parameter Tables 307Customizing the V7111 Web Interface 309Replacing the Main Corporate Logo 309Replacing the Background Image File 312Customizing the Product Name 313Modifying ini File Parameters using the Web AdminPage 313Readers Notes 315C HAPTER 11: S PECIAL A PPLICATIONS - METERING T ONES R ELAY 317Readers Notes 319C HAPTER 12: S ECURITY 321IPSec and IKE 321IKE 322IPSec 323Configuring the IPSec and IKE 323SSL/TLS 332SIP Over TLS (SIPS) 333Embedded Web Server Configuration 333Secured Telnet 334Server Certificate Replacement 334Client Certificates 336SRTP 337RADIUS Login Authentication 338Setting Up a RADIUS Server 338Configuring RADIUS Support 340
