For the past few months, I've been dealing with occasional and random hissing and crackling noises on my phone line that disappear when the modem is turned off. There's no pattern as to when this happens. I just had Fusion activated a few weeks ago, and it's still occurring.
I just completed installing a DSL splitter at the MPOE in a last-ditch attempt to isolate any noise problems. I live in a two-bedroom apartment with two internal-wired phone lines, though I only use one of them (each line is on a separate two-pair wire bundle).
At the MPOE, which is an ancient binding-post behemoth in an enclosed shed/closet, I ran new 22 AWG hand-twisted wire from the screw terminals to a splitter (an Excelsus CP-V413WT, datasheet
here). I then split the signal so that the voice part goes over one internal line, and the data goes over the other. I connected the splitter to the internal wiring using new 22 AWG wire from the splitter and UR butt splices. So the wiring is about as clean as it can get on the premises side of the MPOE.
The modem is a brand-new Comtrend CT-5072T I picked up off of eBay. I reset it to factory settings and put it in bridge mode. It works fine when there is no noise on the line (although I wish I was getting more than 8.5M down with Fusion), but once the crackling starts, the DSL throughput drops like a stone, even though I split the signal right at the MPOE.
Any assistance would be greatly appreciated.