The box itself was fine but the sidetone needed adjustment to match the level of the other box - as any box will, whether it is new, second hand or from wherever. The issue was that it took month to get them to do something that, in itself took 30 seconds, but should have been done in the 1st place.
Are you sure that you don't work for the aforementioned outfit? There is some chap always skulking behind a computor in the corner of their office.....?
