How to Re-sync/Pair a Replacement CS50/CS55 Headset to Base

How to re-subscribe/Sync the CS50 Spare or CS55 Spare headset to its base.

Important: Before re-subscribing the system, make sure the IntelliStand switch (on the right side of the charging base) is in the “_” position and NOT the “=” position.

To Re-Subscribe (Pair) the Plantronics CS50 or CS55:

The headset and the base unit are supplied subscribed to each other. However, if you wish to use a replacement headset with the base unit (or if you lose your connection to the base unit), then you must re-subscribe as follows:

1. Return the headset to the charging base.
2. Press and hold both the + and – buttons on the back of the charging base until the red light on the front of the base starts to flash.
3. Let go of both buttons. The red light should continue to flash.
4. Press the mute switch (black wheel on the top of the headset) straight down until a green light appears on the headset, then let go of the wheel, and the light should remain on the headset.
5. Disconnect the AC power adapter from the bottom of the base unit for 5 seconds, then reconnect it.
6. Resubscription is finished when the red light on the base is fully illuminated and the green light on the headset disappears.
7. Remove the headset from the charging base, and press the talk button.  The headset and base should now be connected.
8. If this procedure does not resolve your issue to try a system reset.

NOTE: Before re-subscribing the system make sure the IntelliStand switch (on the right side of the charging base) is in the “_” position and NOT the “=” position.

To Reset:

1. Press both the call control button and the listening volume/mute button for 5 seconds.  When the indicator light blinks release both buttons.
2. Press the call control button again.  The talk indicator light will again blink breifly to indicate the headset is back to normal.
3. Disconnect the AC charger from the AC charging jack for 5 seconds.
4. Reconnect