This is the Plantronics A10-16 Cable (formerly P/N 33669-01) is a special cord (Quick Disconnect) that allows for quick disconnect headset (H-series) to be connected to headset-ready phones (ie. Nortel) which would normally take a plantronics quick disconnect headset. If you have Plantronics H-series headsets and a new Polaris-compatible telephone (phones with a built-in "headset ready" jacks) is purchased. By using this cable, you can keep your existing headsets rather than having to buy new Polaris-versions. part# 66268-02 (or 66268-03) Note: If you find the volume too low using this cable. We also have the Plantronics A10-12 Cable (high output) available as alternative. It has about 4dB higher output. Most phones do not need this since it will produce distortion if the volume is too high. Note: DO NOT order this cable for any other application other than what is described above. Give us a call if you have any questions regarding this cable. The A10 cable has a smoke color plug, There are many Plantronics cables look exactly alike and has the same RJ9 jack, but only the A10 cable is "smoke gray" color. Old Poly part # 66268-02 New HP part # 85T17AA#ABA
