ADTRAN IP SoftPhone User Manual The Settings Dialog61950859L1-1A Copyright © 2006 ADTRAN, Inc. 41IP Address InfoThe ADTRAN IP SoftPhone is set to automatically detect the local IP address. If the softphone ishaving difficulty detecting the correct values, uncheck the auto-detect box and enter the local andNAT IP addresses instead. This is often useful when on a VPN.Network InfoSpecify the firewall type and primary and secondary DNS server information.RTPCheck this box to enable RTP inactivity timer. Also specify the inactivity time in milliseconds.User InterfaceUse the User Interface menu to configure parameters associated with the User Interface shown in Figure 1.User Interface GeneralFigure 14 shows the User Interface General menu for the user interface configuration. Detailedinformation on these configuration options is listed below. When the information is complete, select OK tosave the settings.Figure 14. User Interface General MenuDialed and Received CallsSpecify the number of dialed and received calls that will be saved in the Contact Drawer when thesoftphone application is closed.Always on TopCheck this box to force the User Interface to remain on top of all windows at all times.