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Self-Contained POTS System?

Cory5412

Daring Pioneer of the Future
Staff member
It depends on the specific technology. VDSL and VDSL2 (which are unexciting in that they use EFM instead of ATM, and so they're basically literally ethernet bridging technologies) have modes (and i think it might be related to specific chipsets, it's not something I've been able to get working with, say, the ActionTec C1000A you can buy at Best Buy) for peer to peer mode, which sort of replaces some of the older symmetrical DSL standards that themselves got used as T1 replacements. (SDSL and g.shdsl.bis in particular.)

 

TrueNorthStrong

Well-known member
Hmmm. Lots of research that needs to be done. I'll probably end up doing that much later. 

For now, I'm going to test out this setup on my PBX system, and compare. I'll see how much that ISDN expansion costs, from what you've said it could enable some very cool stuff. 

 

Cory5412

Daring Pioneer of the Future
Staff member
Yeah, regarding ISDN/T1 - the main thing is you can either use it to dial "out" of your system, or with a bigger PBX, you can just set up multiple lines to ring on one number and just use one of those slightly larger modem cards in a Cisco box.

It just kind of depends on how far you're interested in going and what you need/want to do.

I personally have a handful of systems for which it's more practical to add modems than Ethernet and I usually want my systems networked full time, so I can imagine myself setting up a system where I've got a small modem pool running so I can just leave a handful of systems connected at once.

 

TrueNorthStrong

Well-known member
Cool! It's not entirely a necessity for me, but I'm sure in the future it'll become useful. 

But, for file transfers, wouldn't an external SCSI drive loaded with files be much better? A heck of a lot faster. No multiple access, but for that you can use an Appletalk network and a file share. 

 

CC_333

Well-known member
One *can* still get a genuine POTS line through a Tel Co, right?

They're obsolescent (been that way for years now), but my understanding is that FCC regulations still exist (for now) that require that they remain online, as they're considered a public utility.

I *really* wish we still had ours! What we have now is cheaper and more reliable, though, so we're not likely to get a POTS line again any time soon.

c

 

TrueNorthStrong

Well-known member
Yep! In fact, I can do one better than that. My city provides free dial-up internet access to anyone. So, I can choose between dialing internally for access, or dialing externally for access as well, as we still have our landline connection. 

At which point it becomes rediculous. We get service to our house over fibre optic connection, which includes the telephone service through it. So if I dial out a connection, I end up with dial-up over fibre. 

 

Dog Cow

Well-known member
One *can* still get a genuine POTS line through a Tel Co, right?

They're obsolescent (been that way for years now), but my understanding is that FCC regulations still exist (for now) that require that they remain online, as they're considered a public utility.
What? What planet do you come from??? :p We as a nation would be in a serious load of trouble if there were no more land lines tomorrow. Same if the postal system disappeared tomorrow.

 

CC_333

Well-known member
I'm from Earth, like (almost?) everyone else :)

I haven't been following any of the latest developments, but last I knew, landlines were here to stay. I'm glad to know they still are.

There are many rural places without cellular service or broadband internet, so a landline with dial up is the only option if people there want to communicate with anyone in a somewhat modern-ish way.

Increasingly, however, wireless carriers are expanding their reach, so there very well could come a time where landlines are no longer necessary. But for now, they're an *extremely* important bit of infrastructure.

c

 

ArmorAlley

Well-known member
The Swiss national phone company made a statement some years to the effect that analogue telephone would not be supported within a couple years. I assume that they meant that all exchanges would be digital only.

The landlines stay as they are but the nature of the signal changes.

Glass fibre cables are being laid down at a rapid rate but Switzerland is geographical divided into two - there is the flat-ish land between Lake Geneva and Lake Constance and 90% of the population lives there and there are the Alps. Both regions are roughly the same in area but the former gets all of the infrastructure while the latter doesn't. It is easy in a place like Switzerland though, to lay down cable, because 7 million people live close together. I imagine that the larger cities around the world are no different while the rural areas with very sparse populations must do without.

 

CC_333

Well-known member
Well, genuine in this case means some sort of copper line that runs to a box at my house, and that I can plug a plain old phone into without any special considerations.

c

 

NJRoadfan

Well-known member
Verizon is phasing out copper networks in areas served by Fios, so you'll have that dial tone, just connected to an optical network terminal. Meanwhile in areas that haven't been upgraded to Fios, the copper network is literally falling off the poles and rotting away. "Maintenance" consists of a high tech solution known as a trash bag and duct tape and that is the few splice boxes that actually get covered with something. Most of them lay exposed.

 

joethezombie

Well-known member
Even in Idaho, most LECs don't repair copper anymore.  Worst case, your POTS line is now a cellular adapter out on the pole, which doesn't even support FAX, let alone dialup Internet.

 

CC_333

Well-known member
Well, as best as possible, given the current "situation" :)

If The Big One hits, though, I'd imagine things won't seem very earth-like.

c

 

techknight

Well-known member
I always remembered that as a PSTN. I haven't touched dialup since 1999 when I got really frustrated with it as even at that time, the internet was racing past dialup and the load times were getting more and more ridiculous. 

 
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