I order made on 21 September 2014 and what can I say ... the first cable has taken leave after about two weeks (just invites no more -> "wiggle" only with a lot of patience on the mini-plug was contact). The second cable has just been adopted by the same problem: purely to the office phone to the cable, nothing happens. Something wobbled, as signal, signal away again ... on and on.
Now I have a colleague an old, cheap to make phone calls at least back to.
These things never stay here again. Perhaps the manufacturer's accommodating and provides feedback.