Steffen,
Unfortunately I am an end user, so I have no outlet with which to provide feedback except for here. This is basic functionality that I am very surprised Polycom does not have - it is something we would take advantage of many times a day. It's certainly a disappointment to be moving from cell phones on speaker mode to Polycoms, expecting improvements across the board, but instead we're taking a step back in usability.
I understand that there have not been many feature requests for this and I'm curious if that might be because of the way product feedback must be provided. It does seem like this would be a problem that would be felt mostly by end-users. Perhaps the people who can file feedback are faced with a different set of problems and so file different feature requests. It's not like I can email IT and ask them to jump through several hoops to file a feature request on my behalf.
I know that your product team is facing many competing priorities, and as a product manager myself I understand those challenges. That said, given the considerations above, perhaps this item is worth raising to a higher status than its feature request count would suggest?
Regards,
Brendan