T42S Headset Button Hangup

[smuser]

We tried to switch to T46U and T42S for our call centres but operators threw them out for exactly the reasons OP described. There other irritants but those are much less annoying and to do with physical layout that can't be fixed. Casual users are generally happy with the phone overall but still find the headset confusing. I find it very illogical that headset and loud speaker do equivalent things but behave very differently.

I've submitted a ticket. To view the ticket it seems to require login so no point linking here.