here is the trick I got from Indian guys web:
------------------- how to contact TSC direct -----------------
method to follow to talk with TSC direct.
use 800-375-5283 to find status.
Press 1 for english
Press 2
Press 6
Press 1 for SRC #
Press 1 again to confirm
Press 3
Press 4 when it says u have file Multiple applicaiton, by selecting this option u will be connected with TSC.
(if u find any error after SRC input, use any other SRC like EAD etc)
Once connected give TSC-opt to ur 485 src.