Plantronics CS50, CS50-USB, CS55, CS70, CS70N & 510S Wireless Headset Date Codes

The bottom of the base will have a white sticker starting with “B” for base. This is followed by a letter representing the Month (A=January, B=February…) and a number representing the Year (05=2005).








Ever since I bought my CS55 and lifter I have had problems. The unit has a delayed response before the unit activates. And then most of the time the lifter will only lift half way and i will not get a connection. When I pust the button again, it will finally fully lift to the point that the connection is made. But by then the call is lost. I have replaced the batteries twice with the same rersults
It sounds like the lifer may be the problem. Try replacing/exchanging the HL10.
The Plantronics CS55 is easy to setup, works with most phones, provides great distance and talk time and comes with two wearing styles. Customers purchases more of them than all other models combined.