My phone has three jacks: line jack, handset and headset. I use the headset jack for the Plantronics headset. As I said, the phone is smart enough to know if the the headset is set to talk (off hook) or not because it won't let me switch to the headset unless I have pressed the talk button to take it off hook. But it won't pick up calls that are ringing when I press the talk button (thus taking the headset "off hook"). I need to either press the DN, handsfree or the headset button or take the handset off the cradle to answer the call.

Since the handset lifter does not fit on the 3900 series I cannot answer calls using the wireless headset any more. And even if the lifter worked it would defeat the use of the headset jack because it would then have to plug in-line with the handset in order to work.

I assume that the ultimate answer will be "If you want to use that headset to anser calls then you will have to purchase the ATA adapter and plug the headset into that so incoming calls can be answered via the analogue ATA."

<SIGH!>

I will be interested in hearing what your vendor says.


SD