please reset the number and reboot the PC

Line Information: Shows the terminal that is going to be used.  You can set the following items: ❒ ❒ ❒ Extension Number: Shows the extension number you installed. If you change the terminal or number please reset the number and reboot the PC in order for the change to take affect. Extension Name: Shows the name of the Extension. Line Configuration: Shows the Line Configuration screen.  You can't press the button unless you are connected to PBX. ❍ Network Information: ❒ ❒ ❒ PBX IP Address: Shows the IP  Address which you entered during installation. If you change the PBX IP  Address within the UX5000 programming, change this setting as well and reboot your PC. PBX TCP Port: Shows the  TCP  Port  Address you entered during installation. If you change the PBX  TCP  Port  Address within the UX5000 programming, change this setting as well and reboot your PC. My Host Name / IP Address: Shows the My Host Name/IP  Address you entered during installation. We  recommend using a "Localhost" (Default) or the PC name. Otherwise, enter the IP address of the network card you are using. If you change the IP  address of the card you’re using, change this setting as well and reboot your PC. ❍ Operation Mode: Shows the Operation Mode you selected during the installation. ❒ Multi Line: Send event to CTI that occurs on Speaker Key/Answer Key/Trunk Key/Virtual Extension Key/Yellow Key. Use this setting if the application shows multiple call information.