Hi all. I'm pretty much about ready to make the jump to Fusion (currently on AT&T DSL) here in San Francisco, about 7700' from the friendly McCoppin St. CO according to the prequal tool, but wanted to ask a few questions about how the transition can work.
I've created the attached diagram of the current setup, which may or may not make everything more confusing. Briefly: The house was originally wired for two phone lines (red and green). Red is the active DSL line and primary voice line, green is connected but no longer has service. When DSL was installed 12 years ago, two additional voice lines (gray and orange) were also installed along with a whole-house single-line DSL splitter. Orange is an active voice line, gray also no longer has service. The primary voice line (red) appears to do an odd loop outside, coming in on the blue pair, through the DSL splitter, going back out to AT&T's underground splitter a couple houses down the sidewalk, and coming back in on the original pair of lines (red/green). The thick black cable into the "new demarc" is a 10-pair run into the house, with a couple of open pairs available in the event we ever need a dozen phone lines. The DSL circuit and the gray/orange lines have their own wiring runs to the modem (ancient Alcatel 1000, still kicking!) upstairs. That's everthing in a nutshell.
So, what I'd like to do is wind up with two-line Fusion service in a way that minimizes the likelihood of downtime and chaos and without massive rewiring. The numbers ported should be the same as those currently used by the red and orange lines. I especially do not want any downtime on the red voice line/DSL, but don't particularly mind if the orange line is out of service for a bit.
Thus my initial thinking is to do the following:
•Purchase and prepare a two-line whole-house ADSL2+ splitter and a two-line ADSL2+ modem.
•Move the orange line to single-line Fusion. Rewire the orange line to pass through the new splitter and use one of the spare pairs to reach the modem.
•Once all is well, move the red line to Fusion, getting two-line service, and rewire the red line to also pass through the new splitter and up to the new modem.
Which brings me to my questions:
•Am I over-thinking this? Is there a better way to accomplish this transition?
•Is it a good idea to do this in two stages as described?
•Is there any problem with the two Fusion lines not being part of the same original pair? In other words, if I have one line on the red pair, does the other one need to be on the green pair for some reason?
•Anything else I'm missing here?
Thanks for any advice you may have! Very much looking forward to making the switch to Sonic. --zach