Switch 56, ISDN, DSL, Frame Relay

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Do all these services use the same telephone line?

If I have a dial-up service with an ISP, does it mean I am using switch 56?
What is the difference between BRI and DSL?
What do you call the internet access through a cable company?
Could I subscribe to a Frame Relay for sending and receiving faxes and
e-mails?

It's all so confusing from the end user point of view ...

What about the cable modem, is it a CSU/DSU unit?

Sorry about all these questions, but they are all related to the end user
options for communication and any help will be appreciated.




Re: Switch 56, ISDN, DSL, Frame Relay
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No



Big difference



Cable Internet



yes with VoFR

and e-mails?

Yes with Internet service

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Either forget about all this definitions and just use available
tecnnologies, or use Google or WikiPedia and become a "prodessional".


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No, it's "Cable Modem" and nothing else.


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--
Good luck,

Mike
CCNP, CCDP, CCSP, Cisco Voice, MCSE W2K, MCSE+I, Security+, etc.
CCIE R&S (in progress), CCIE Voice (in progress)
------
Headset Adapters for Cisco IP Phones
www.ciscoheadsetadapter.com
www.headsetadapter.com



Re: Switch 56, ISDN, DSL, Frame Relay

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Cannot afford forgetting these definitions, on the contrary, have to
memorize all for an entry level exam.
Tired of theory and memorizing, need to see or understand where and how do
these things apply in real life ...
Google and Wikipedia do not help either.

Thanks for the reply

Happy New Year




Re: Switch 56, ISDN, DSL, Frame Relay
* Switch 56 is an early 90's digital hookup, the forerunner to today's ISDN
network. Does not exist today.
* BRI stands for "Basic Rate Interface" (BRI, 2B+D, 2B1D) - ISDN)
configuration consists of two 64 kbit/s "bearer" channels (B channels) and
one 16 kbit/s "data" channel (D channel). It's today's ISDN lines.
(http://en.wikipedia.org/wiki/Basic_Rate_Interface )
* DSL stands for Digital subscriber line - a family of technologies that
provide digital data transmission over the wires of a local telephone
network. (http://en.wikipedia.org/wiki/DSL )
* Frame Relay... a lot... (http://en.wikipedia.org/wiki/Frame_relay )
* Cable Modem (http://en.wikipedia.org/wiki/Cable_modem )
* VoIP (http://en.wikipedia.org/wiki/Voip )
* Voice over Frame Relay (http://en.wikipedia.org/wiki/Vofr )

and so on...

Good luck,

Mike
CCNP, CCDP, CCSP, Cisco Voice, MCSE W2K, MCSE+I, Security+, etc.
CCIE R&S (in progress), CCIE Voice (in progress)
------
Headset Adapters for Cisco IP Phones
www.ciscoheadsetadapter.com
www.headsetadapter.com


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Re: Switch 56, ISDN, DSL, Frame Relay

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are you sure about that?

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Thanks, my question was about real life examples; i.e., if i subscribe to
BRI, will my existing phone line be enough, or do I need other CPE ...



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Again, you are missing the whole point of my question. Let me copy and paste
it again:
"... Tired of theory and memorizing, need to see or understand where and how
do these things apply in real life ...
Google and Wikipedia do not help either."



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Thanks anyway.



Re: Switch 56, ISDN, DSL, Frame Relay
If you read WHOLE article, you will learn, what's use for one or another
technology in today's life. Most articles describe use of a technology, and
if not - find another article, then another. Do your homework yourself,
don't cheat... :-)

Good luck,

Mike
CCNP, CCDP, CCSP, Cisco Voice, MCSE W2K, MCSE+I, Security+, etc.
CCIE R&S (in progress), CCIE Voice (in progress)
------
Headset Adapters for Cisco IP Phones
www.ciscoheadsetadapter.com
www.headsetadapter.com


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