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Re: Two Topics: Broadband in "the country" and Pronto Pro
Remotes...
Title: Re: [ukha_d] Two Topics: Broadband in "the
country" an
Anyone know
what the fasted ISDN line is?
ISDN
channels are 64K each and for normal domestic use (ISDN2e /
HomeHighway) you get two channels totalling 128K. However each channel
is a separate phone call & cost. Most people use one 64K channel.
It is a costly alternative t your adsl if you used it a lot. Call
setup times are very good (almost instantaneous) but overall speed
much lower and of course not 'always on' so you can't run inward type
services eg a web server.*see PS
ISDN30
is the bigger variety - a single 2MB cable with 30 channels - it can
be provided with any number of the 30 channels enabled and each
channel is again 64K. Expensive of course and I believe only available
on a business line rental, each multiple of 64K is again a separate
call.
You
could again bond several of these together if you had the inclination,
lines (and money) t create any size pipe in multiples of 64K.
Although I have seen all 30 channels used (and there are PC cards that
will handle this), I have never seen anything bigger but I'm sure
people like the BBC must use it on occasions. These will nearly always
be point t point links used for the transfer of large graphic or
video footage.
Kevin
*PS - Actually there is a way around this if you know someone
else with a permanent connection and a dial on demand router. You also
need a service provider that gives you a static ip eg Demon.
What you do is host your home page on Demons server and include some
info eg a graphic that is actually located at the friends permanent
site address. Then every time the page is accessed an access is made
at your friends site. (This is also useful for logging accesses t
your site). You use this 'access' t cause the friends router t dial
you on a special number (eg one of you MSN numbers provided with the
ISDN line). When ever you see an incoming call on this number
(supplemented as well if you want with the caller id of the friends
router) you know someone is accessing your site and your router
(automatically) dials into your isp for you. Now all the subsequent
pages on your site are accessed off your home web server.
I used
this for a while years ago and it worked. In my case the friend was my
company who had a leased line and I used ISDN2e. I actually changed in
the end to my works router creating a route directly to me rather than
me then dialling my isp. It improved latency. This is really just
getting a friend t host some of your pages and putting a dial on
demand link to you for some pages that require local info eg
HomeControl. One downside is that the search bots bring up the dial on
demand links. A way around this is t put the triggers on deeper
nested pages and t have higher pages with tags set t stop the search
engines (no index).
--
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Automated Home UK
http://www.automatedhome.co.uk
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