Hi, I'm currently trying to work out why my TC1000 is not accepting DOV calls. Digital ISDN calls come in fine, but with DOV the call gets routed to a modem on the ARC and does not answer properly. No call blocking is enabled on the HiperDSP. I also have a TC100 and it is accepting DOV calls fine (using S68.1=1 and S68.2=1), but these registers do not do anything on the DSP modems. Can anyone shed some light as to why it might not be working? Running firmware version 2.1.9 on the DSP. Thanks, Patrick