Both the Jabra 9125 series and 9330e are compatible with Cisco SPA504 telephones. There two things to keep in mind when using wireless headsets with this Cisco telephone.
- Any wireless headset that you will connect to this phone's headset jack requires the 2.5mm connector cable.
- If you plan to roam around the office and be able to pickup/hangup from the headset you will also need the GN1000 lifter.
Below is a video demonstration on how to use the GN1000 remote lifter.