A device for sending a digital signal down an analog line

164
votes
7answers
36k views

Why did dialup modems make noise?

I know that the signal was just tone pulses but why was it when (back in the 90s) when you first connected to the internet you heard a bunch of funny noises. After that if you were to use the internet,...
43
votes
3answers
41k views

Use a smartphone as a Dial Up Modem?

Most cellphones today have an audio jack that works as both output and input for sound. That's why there's headphones today with built in microphones for making phone calls. Now then, is it possible, ...
22
votes
8answers
5k views

What are the disadvantages (if any) of accessing the internet through two or more “chained” routers?

My ProblemI just got internet setup in my dorm room at school through a third-party provider. The modem they gave me, however, also functions as a wireless router. I also have my own router with ...
20
votes
10answers
107k views

How do I access my modem's GUI when it's in bridged mode?

I wanted to try setting up my ActionTec P5001a DSL modem/router in bridged mode with a Linksys E2500 router for improved NAT performance. Switching the modem to bridged mode and the router to PPPoE ...
15
votes
3answers
11k views

Receive and route phone calls through computer

I volunteered to work for a political campaign. We want to make a unified number (with multiple lines) to put as contact us number.We want it to work like customer support numbers, you call a fixed ...
13
votes
5answers
125k views

How to make phone calls using a PC, modem, headphone and no actual phone instrument

I have a phone landline connection and I DO NOT have a phone instrument. I connect the cable into my laptop, and want to make calls using my laptop. I have an HDA CX20561 modem. I seem to be able to ...
13
votes
3answers
2k views

Internet connection drops every hour

I recently built a new desktop computer, which works fine except for connecting it to our network. I have an ethernet cable directly connecting my modem to my computer, and around every hour or so, ...
12
votes
5answers
23k views

What is the cable that runs from the cable modem to a wall outlet

I was wondering what type of cable runs from the modem to the wall outlet in my house? Is it a coaxial cable? I'm very confused by what I've read around the internet. There seem to be many variations. ...
10
votes
4answers
11k views

What is the name of this cable that goes into a modem?

I have bought cable internet from teksavvy and the modem arrived however the cable that comes out of the wall and goes into the modem where it's labelled "Cable", is very short.What's the name of ...
10
votes
5answers
8k views

Looking for network simulator (subnets, routers, etc..) [closed]

I am looking for network simulator (subnets, routers,wireless etc..) to study for an interview that I have.
8
votes
8answers
2k views

Cable modem speed test

Are the popular speed tests (cable, dsl, etc) that are available accurate? if so, how?Also, it seems that they only measure download speed of one file and not responsiveness, latency, robustness, etc....
8
votes
2answers
15k views

Are modems, made for a more recent DSL standard, downwards compatible with older DSL technology?

I understand that older DSL modems aren't compatible with newer technology, but is the case same the other way around? I.e.:Is VDSL2 modem compatible with a VDSL connection? What about with ADSL or ...
7
votes
5answers
19k views

Modem/Router/Networking Emulators

I'm looking for a decent source of modem/router emulators. Something along the lines of the followinghttp://www.voiproblem.com/emulators/Netgear/http://www.voiproblem.com/emulators/Linksys/The 2 ...
7
votes
3answers
15k views

Wi-Fi stops working every 10 minutes on Mac OS X

Every 10-15 minutes, my Internet connection fails in the following manner:Cannot load websitesCannot connect to DropboxCannot connect to IRCSkype still worksSlack still worksStill able to ...
7
votes
2answers
2k views

Very strange network issue - specific sites not loading

First off, I apologize if I posted to the wrong exchange, I really wasn't sure where this question fits.For quite some time I've been having this very strange problem with my home internet ...

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