why when you are using ADSL , telephone line is not busy , but when u usnig dial up , tel line is getting busy?
2007-03-14 06:19:02 · 9 answers · asked by Anonymous in Computers & Internet ➔ Computer Networking
Right!
With Dialup the modem is using the phone line & thus ties it up & makes it "busy." Whereas DSL does not use the same signal so it keeps your phone line free to make/receive calls.
You just have to make sure that all of the phones in your house have proper DSL filters installed on them. (Just a simple plug that goes into the wall.) If you do not have the filters on the phones in your house phone calls can interrupt the DSL signals.
2007-03-14 06:24:06 · answer #1 · answered by Anonymous · 0⤊ 0⤋
adsl uses a range of frequency unused by your analog phone line. So you can still use your phone which uses part of the frequency range and the adsl uses the other half.
Using a modem uses the part of the phone line used by your phone. It converts digital signals to analog noise and pushes it over the phone line as audio. So you can use DSL and a modem at the same time :)
2007-03-14 13:25:04 · answer #2 · answered by mackn 3 · 0⤊ 0⤋
Yeah, you got it right. ADSL uses the high frequency spectrum on the phone line. You have to put filters on the voice lines so you don't hear a "Hiss" on them. It is always on, and you can use the phone and surf the net at the same time.
2007-03-14 13:23:29 · answer #3 · answered by dogpoop 4 · 0⤊ 0⤋
Good question.
When you use dialup, you're using your actual "phone line", so it's busy.
When you use ADSL, you're using the part of the phone wire that ISN'T used by the phone line. So you can still place and receive calls even when you're transmitting data over ADSL.
2007-03-14 13:22:31 · answer #4 · answered by Scotty Doesnt Know 7 · 0⤊ 0⤋
ADSL requires a modem that converts the information into a modulation scheme that does not interfere with the telephone modulation.
2007-03-14 13:27:59 · answer #5 · answered by BowtiePasta 6 · 0⤊ 0⤋
ADSL modems use frequencies from 25 KHz to above 1MHz, in order not to interfere with voice service which is primarily 0-4 KHz. and hence both work simultaneously.
2007-03-14 13:32:48 · answer #6 · answered by Shemit 6 · 0⤊ 0⤋
Most wires we use, phone/cable TV/electricity are very big medium compare to the service they need to carry; and there is large unused bands of frequency not used (broad"band").
ADSL took advantage of that on phone wiring, this exploitation technique is also known as "piggyback" in layman's term.
2007-03-14 14:35:46 · answer #7 · answered by Andy T 7 · 0⤊ 0⤋
when you have adsl the provider sort of splits your line in two one for internet and one for phone.
2007-03-14 13:35:24 · answer #8 · answered by md81593@verizon.net 2 · 0⤊ 1⤋
http://en.wikipedia.org/wiki/ADSL
2007-03-14 13:23:32 · answer #9 · answered by peersignal 3 · 0⤊ 0⤋