On the ACS, Tip and Ring are analog, I can always get a dial tone there, except with this set. Also, I've always been able to "Monitor" the second pair and listen for the 'motorboat'. With the 8100, I get nothing.
Last week, I was working on an office music system, and I couldn't get anything with the 8100.
Maybe you're right, and there's something odd about the Eclipse, or maybe this one is defective.
What is that you like about the PE-810?
