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The Jabra Y cable has 4 connections total.
The 2 cables on side B are shorter than the cables on Side A.
Please make sure you are looking at the correct plugs, it is possible to plug this
cable in back to front which means you will only get sound 1 way.
Your headset base may look slightly different to the base on
the left however the colour coding to the ports will remain
the same.
Plug 1
of the Jabra Y cord will plug into the red AUX port on
your headset base.
Plug 2
of the Jabra Y cord will plug into the blue phone port
on your headset base.
The EHS 40 Box has 2 plugs on one side.
Plug 3
of the Jabra Y cord plugs into the port on the right on the
EHS 40 box (the bigger of the 2 ports).
Plug 4
of the Jabra Y cord plugs into the plug on the left on the EHS
40 box.
The USB cable on the other side of the EHS 40 box then plugs into the USB port in
the back of your telephone.