On 30 Nov 00, at 9:34, Robert Leeson Jr wrote:
> A couple of thing you need to understand regarding ISDN ...
>
> 1-ISDN is digital from end to end - there is no modem
> 2-An ISDN "BRI" (basic rate interface) consists of 2 64k "Bearer" channels
> and a 16k "Data" Channel. The "Data" Channel is used main for call
> progress and dialing.
> 3-The 2 Bearer Channels each carry an independent 64k data stream.
> 4-To use the 2 bearer channels as a single 128k channel require both ends
> of the line use some form of "Bonding" (also called Inverse Multiplexing or IMUX )
> This is normally a hardware function but could be done in software if the
> processor power is available.
On a similar subject... I have been investigating the use of IDSL in
my setup at home. I'm too far from the CO to get ADSL, and I
don't have cable access, and probably wouldn't buy it from
Adelphia anyway. Can I use STN with an IDSL bridge? Has
anybody done this before? They say I will get a 144K connection;
does this require them to install two IDSN connections, that the
bridge then runs DSL over? (That is my understanding of what
IDSL is -- ISDN Digital Subscriber Line) The biggest problem I have
with it so far is that it's $50/month (as opposed to my current 56K
connection at $20/month), and I only get one email account; I pay
extra for more than that, and I need at least two extras, preferably
three or four.
Mike Jesch
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