Subj : SEXPOTS - Pulling my hair out... :) To : Digital Man From : cafarmer Date : Tue Jun 11 2024 05:46 am I am only working with the 1200 right now to avoid confusion. The hope was that if I figured out the 1200, the Optima 28.8 would be easier as it is newer. The only manual I have right now is the HSM 300. I was assuming if it was in that manual, the 1200 would support it as well. So, in the HSM 300 manual, there is some info on the Carrier Signal, Cn. But they don't ever show an example of how it it used. So when I tried ATC1, the HSM 1200 responded with "OK". But then I tried to read that back by typing ATC?, it responded "000". So I wasn't sure what was going on there. Then you stressed ATCn and AT&Cn were different. So, I tried AT&C1 and it responded "ERROR". I tried setting IgnoreDCD = FALSE a while ago thinking it might affect the behavior, but it didn't. If I recall, it still picked up a "Carrier Detected" and made the connection to the TCP endpoint without ever receiving an actual call. It's not really fair to you to present recollection vs. a controlled test with output, so maybe later today, I will set the IgnoreDCD and provide the ..ini settings along with the output. BTW, Debug didn't reveal anything I could use to figure it out either. As always, thank you very much for your help. -Chris .