Hi all
Looks like RFI-issues, configuration TS2000 and RC2000 work flawlessly with the newest software release. The busy tones come up when the internet link is down, probably due to rfi. The dialtone comes up when building up the connection to the remote box.
At the radio site you should use short, shielded cables, toroids and symmetric antennas. Also make sure that you have a good grounding of all components of your station. Do not power the box from the transceiver power supply, use a separate power supply. Put grounded sheet metal under your station table, this will eliminate rf-issues.
73 de Mark, HB9AZT
(running remote rig boxes with TS-480 even at 1 KW AM on a big pro-radiosite, without any connection problems and rfi-issues, but with lots of toroids..)