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It may just need to be replaced. This is most likely a defective motor. It may occur straight out of the box, or after using for awhile. Troublesho...

These GN Netcom cords 8800-01 & 8800-02 work for any of these headsets: GN 2110 ST (DISCONTINUED!) GN 2115 ST (DISCONTINUED!) GN 2117 ST (DISCO...

(ALL JABRA DISCONTINUED!). The Jabra PRO 9450 enables up to three additional Jabra PRO headsets to be connected to the base for conferencing. Confe...

(DISCONTINUED) I do not hear a dial tone. • Check that all the cords and plugs are connected correctly. • Check that the power adapter is plugged i...

Lights on Base (pictured at upper right): A) Telephone mode/Base talk button (Lit Blue when in telephone mode and flashing when headset is active)....

Please view the pictures below and follow along using the red numbers: 1) This button can MUTE the Jabra ring detection. That’s right, turn it comp...

Instructions for install of Link 20 with an Avaya 9640 phone. The black connection cable of the headset base full phone port plugs into the blue ph...

(PRODUCT DISCONTINUED!) The 9120 operates on the same principles as the CS50 or other wireless headsets, the cords are simply in a little different...

The ST mic is a sound tube- which is pretty much the exact same thing as a voice tube - but Plantronics had probably already copywritten voice tube...