Part-No: D0062-0011-34-00 (“DHSG CABLE KIT”) We do not carry this part, this would need to be special ordered. This part works with Mitel Models: 6737i 6735i 6757i 6755i 6753i You also need to enable EHS from the phone setting by pressing the spanner button on the phone ---> selecting Audio---> changing audio as headset/speaker and headset as DHSG. * Aastra does not recommend using EHS with the expansion module
