WH63 Not ringing

[oliv]

After updating my T42S to v86, and my monaural WH62 to v432, I can report that when a call comes into my deskphone:
- the deskphone rings
- the WH62 base rings
- nothing obvious can be heard in the headset itself.

Looking at USB connect settings, i can't see anything to change this.

This implies that if a monaural WH62-equiped person moves a couple of meters from his or her desk where stand the deskphone and headset base, he or she can't hear a call is coming in which someone defeats wearing a wireless DECT headset.

1. Did I miss something during my testings ?
2. Is this feature dedicated to dualaural headsets ?