Built In blog
Plantronics CS50/CS55 Installation Guide
If your headset still isn't working after watching this video, see our other video on how to resubscribe your headset to the base.
There are several ways you can connect your headset and the instructions are slightly different for each.
1) Headset without lifter or Electronic Hookswitch and if your phone doesn't have a "headset port"
Typically your standard analog phones, or single line phones do not typically have headset ports so you would need to use this configuration. The way this setup works is after the installation you will need to manually physically lift the handset off of the cradle while the headset is on in order to use your headset.