The Jabra GN1200 cord is the solution to the common problem of not being able to connect your headset and telephone. Even though most things have been standardized, the cord connecting the desk phone with the handset or headset is anything but standard as each telephone manufacturer has its own wiring code. Now, with the Jabra GN1200 universal audio processor cord, one cord will work with virtually any phone providing greater convenience. Jabra GN1200 features eight microphone volume settings to ensure that the volume of all outgoing calls is at the same user defined comfortable level.