DCS software first supported Cadence in version 4.1 and iDCS or Falcon phones after that 4.4?
You have to understand that yes the Cadence was discontinued a few years ago.Since then tech support has moved from Miami to Texas and alot of the support techs are new.They probably have never seen a Cadence or have much experience with it especially the first level techs.Latest DCS software is 4.7 I think I know there is a 4.6.I suggest you get a hold of tech support and ask for a second tier tech or manager who at least knows the product.There were definitely some software corrections on the early versions of 4.x software like 4.1,4.2 Check your software levels and go back through the technical bulletins if you have an earlier version.