Question by  SueB (22)

Do DSL modems work with dialup?


Answer by  nareeah (7)

No, because DSL uses digital signal and dial up uses analogue signal. Those technologies are not compatible. Only analogue modems are used for dial up and u will never get the speed of DSL.


Answer by  anime018 (234)

DSL modems use a line in your phone line but it is not dail-up. Most ISP will give you a dail-up backup in cause your dsl is down for a while. So to answer your question no its two different technology's that just happen to use the phone line.


Answer by  thorsdecree (409)

In general, no, although some might. Most modern modems that are not specifically dial-up modems will not work with dial-up. They will work with the specific technology they are marketed for, and nothing else. DSL and dial-up both use RJ-11 phone cables, but different signals and technology.


Answer by  Bob86 (165)

No, dial up uses an analogue modem which transmits on the same frequency rage as normal voice, hence you cannot use the phone and dial up simultaneously. DSL transmits at a much higher frequency, meaning the phone and DSL connection can be used simultaneosly. The two are not compatible with eachother because they use different parts of the frequency range.

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