svz-mri8 years ago000Which adapter cable is needed to connect a headset like the Plantronics HW351 to the Mitel 6867i? The QD connector does not fit Art. no. 254394. Thank you very much!Show in original language (German)Andres Weber8 years ago000Unfortunately, we do not have any adapters available for this headset/phone combination.Show in original language (German)Comment1 comment