There are several ways to connect a headset to Maxwell 10.

HeadsetBrandTypeMaxwell 10 support
Wired headset (RJ9)
 JabraBIZ 2400Yes, recommended adapter cable - GN1200
 SennheiserCC550Yes, recommended adapter cable - CEUL 32
DECT headset with own DECT base (Connected via EHS cable)
 JabraPRO 9400 seriesYes, recommended EHS cable - Jabra Link 14201-10
 SennheiserDW Office 10Yes
 PlantronicsDifferent headsets using APS-11 EHS cableWith new Lollipop release
DECT handset/headset without own DECT base and registered to DECT in Maxwell 10
 GigasetMaxwell 10 DECT handsetYes
 SennheiserDW Office 10With limitations, headset is disconnected when swapping between calls or answer call waiting, will be improved.
User needs to press answer key on headset in the above situation repeatedly, therefore not suitable for reception solution.  
 PlantronicsC565 (GAP)With limitations, headset is disconnected when swapping between calls or answer call waiting, will be improved.
User needs to press answer key on headset in the above situation repeatedly, therefore not suitable for reception solution.  
Bluetooth headset with own BT USB dongle
 JabraSupreme UCYes
Bluetooth headset registered to BT in Maxwell (From firmware Version 2.2.129 - Android Lollipop - onwards)
 JabraSupremeYes
 JabraStyleYes
 Sennheiser EZX80Yes
USB headset
 JabraBIZ 2400 USBYes
 JabraGN 5035Audio: Yes. Volume control on headset is not supported.
 SennheiserPC 8 USBYes
 LogitechPC 960Yes. Volume control on headset is not supported
 PlantronicsBlackwire C420-MYes
USB Hands Free devices
 JabraSPEAK 510
  • Yes, only via USB
  • BT connection only for pcm (audio out)
  • No support for the hook on/off button on SPEAK 510