I see the same problem with the our SRS setup with Logitech Group and SmartDock.


The "mute" function on the Group speaker/mic unit does not trigger a "mute" condition within the the Skype client and vice versa. 


2 inline mute functions is naturally very confusing for end users.


Using the same SmartDock setup we do not see the same problem with the Logitech Meetup, which is a newer design than the Logitech Group. I presume that might indicate a problem with the Group firmware.


I have found no information on this problem except for this article.