YK–2808 support 2 telephone lines and telephone system, installation method is simple and it is similar with the single line model. Use the supplied "Y" split plug to connect telephone line and telephone set to telephone genius for Line 1 and repeat the same process for Line 2. Plug and connect the supplied USB cord to your PC's USB Port and install the driver and application software that you can find inside the CD respectively. The entire process is completed and you can start to use the Digital Telephone Genius.

　　YK–2808 can also connect to use with the twin lines PABX System, installation method is simple which is similar to connect with the normal telephone set. Use the supplied "Y" split plug to connect telephone line and telephone set to telephone genius for Line 1 and repeat the same process for Line 2. Plug and connect the supplied USB cord to your PC's USB Port same as above and install the driver and application software that you can find inside the CD respectively. Any of the telephone sets connect with the PABX System will activate the Telephone Genius in function when a phone call is made or receive.