I,m using NRU 11 and trying to connect to several different sites doing "Operator Assisted" and keep getting "RAD Did Not Respond". I have the operator verify that the RAD is working by doing "Feature 9**". The operator will do "Feature 9*0" to transfer me, I see "Connect at 12000" or sometimes "Connect at 14400" then I get "RAD Did Not Respond". Phone line quality is good and line cords are good. Tried three different PC/Modem combinations, still have problem. Any ideas?