
Tom of Visalia, CA on Dec. 13, 1999
I recently contacted Pacific Bell to have a second phone line installed in my new apartment. My daughter and I share the apartment and the primary phone was in her name. I needed a line for my own use which includes heavy internet usage.
Pac Bell charged me $120 for installation and I'm paying the normal monthly charge for a totally separate phone line. I've found out in the meantime that I didn't get an actual second phone line.
The first thing I noticed was that my internet connection speeds dropped from about 36-38k in my old apartment to an absolute maximum of 25k in this one. Since everything worked better at the old place and the only thing different was the new phone connection I decided to look at the phone system as a possible culprit.
That's when I found out that instead of an actual second physical phone line, Pac Bell had tapped me into a system whereby they are able to carry two different conversations or data streams on a single copper phone line. It's called frequency shift/multiplexing and it saves Pac Bell (and the customer?) beaucoup bucks since they don't need to run in an actual physical line for your computer.
According to several telecomm experts however, and as indicated by my own experiences and those of dozens of message board posters all over the net, it also creates a ton of line noise and/or cross interference that effects both of the "lines" involved. We have even heard it during voice calls when both phones were in use, a crackling noise like the crumpling of cellophane. Both lines do not have to be in use for this to occur. This severely limits the modem transmission speeds, in most cases down to about 25Kb maximum. This is not adequate for even normal home use of the internet, let alone business uses.
I called 611 and was told that their phone lines were not "conditioned" for data streams, only voice transmission. Their maximum transfer rate is less than 25Kb and they only guarantee 4.8Kb. My contention is that they are charging me the full amount for a private phone line as they are my daughter, yet we are being forced, in effect, to share a single line.
We feel that Pac Bell should, when filling a request for a second line, especially when it is going to be a computer line, have to inform the customer of the degradation in service inherent in this system over a real, physical second copper line.
This is a complex subject that we could talk about all day. Tom is not actually paying for a second line, he is paying for additional service. How it's delivered is up to PacBell. Although we all use POTS (plain old telephone service) for data, the service isn't designed for that and the phone companies are not obligated to provide clean data lines. The options are DSL or a cable modem, if either is available.
Oh by the way, everything in the telecom world is "multiplexed" or otherwise compressed -- regardless of how many physical lines go into a residence. Nearly all "twisted pair" copper today has four leads -- enough to write two lines, just as was done at Tom's.