2. Cordless headsets
Overview of all currently distributed telephones
Overview of all telephones that have been certified
| Telephone | Connection | Headset |
| 6737i / 6755i / 6753i | APS-11 | Plantronics Savi 710 / 720 / 730 / 740 / 745 CS 510 / 520 / 530 / 540 |
| Aastra CEHS-DHSG | Sennheiser DW Pro 1 / 2 (PHONE or EU) D10 PHONE |
The old Plantronics CS product line (e.g.: CS70N) requires the APS-1 EHS adapter.
After installing the headset on Mitel telephones, you have to activate DHSG under the telephone’s audio settings and change the audio mode to “Headset/Speaker”. The audio settings for the telephone can be found in the menu (tool key on the telephone) under 2.Presettings / 5.Audio Settings. Restart the telephone.
When using the EHS adapter with Mitel telephones, you cannot use a keypad add-on with the telephone, given that the connection on the telephone is being used for the headset.
To connect Mitel telephones with Sennheiser headsets, ensure that the switches 1 and 4 are activated in the back of the basis. Furthermore ensure that the Sennheiser Firmware is up to date.