Dual ISDN with Win 2K

i have 2 ISDN adapters and i want to configure them to run simultaneously on a dial-up accout. so far i can only see 2 channels in one dial-up account and is currently using only 1 channel, why can't i see the other 2 and use the other 1 or 2 channels? how do i configure them to run as, Dual ISDN? thanx erazer@hot- ...

Windows Hardware 9627 This topic was started by ,


data/avatar/default/avatar11.webp

2 Posts
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Joined 2000-10-09
i have 2 ISDN adapters and i want to configure them to run simultaneously on a dial-up accout. so far i can only see 2 channels in one dial-up account and is currently using only 1 channel, why can't i see the other 2 and use the other 1 or 2 channels? how do i configure them to run as, Dual ISDN?
 
thanx
erazer@hot-shot.com

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data/avatar/default/avatar18.webp

397 Posts
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Joined 1999-08-31
Nice one, I rank this a five...
 
Number one is make sure your ISP allows full rate isdn (128K). Number two is make sure your ISP allows multiple log-ons, ie two dial-ups at the same time, (some prevent this to stop fraud etc).
 
To do all this you use channel bonding, or multi-link ppp as sometimes the tabs will tell you in win9x/nt.
 
Last time I looked at my own connections, I had my 'A' and 'B' ISDN channels, and an analog modem. Now, ignoring the fact that when I use the digital channel bonding, all the lines are being used, if I wanted to add the analog modem, I would simply tick it off in that particular ISP dial-up Networking Icon, in the list of available modems.
 
I can't verify this unfortunately, because I keep the server on auto-log-on as a power-user, and if I log-off to log-on as admin, I'll lode the Internet connection sharing for this PC, which is running BeOS at moment (sorry, I swore)! So the dial-up settings are locked
 
Back in a mo.

data/avatar/default/avatar11.webp

2 Posts
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Joined 2000-10-09
OP
at the moment i have one isdn adapter, using only one B channel. that is running 64Kbps. i expect channel bundling to give me at least 112Kbps to 128Kbps. but how would i go about bundling another two B channels of my second isdn adapter on the same line? is there special software needed to carry out such an operation? ans how would i setup a single dial-up account using all 4 channels or would i have to make 2 seperate dial-up accounts?
 
thanx
erazer

data/avatar/default/avatar18.webp

397 Posts
Location -
Joined 1999-08-31
I'm sorry, I don't get it. If I could stick another Analog modem on a line, wouldn't we all have 20 modems?
 
ISDN is the following:
 
A digital channel of 128Kbps.
You get (in the UK) two analogue sockets, and 2 digital sockets. The two analogue sockets are for voice and fax. You should not use a modem on it because it will not get the full bandwidth of a normal analogue line, it is sampled and multiplexed (queezed) into a digital 64kbps sub-channel, you will probably get around 33k max.
 
So in sumation 1 analogue channel uses 64k of the available 128k bandwidth. Also each digital channel uses 64K. You can have any combination of analogue and digital upto 128K.
 
IE two voice, both digtal (128K), or 1 voice and 1 digital (64K).
 
I have 1 very cheap ISDN modem ( www.haicom.com.tw) that can bond both the digital channels, I'm pretty sure most others do too.
 
If you have two modems, but one is using 128K digital, or both voice, or one of each, the other modem will not connect. But if all that is being used is 1 64K channel on each modem, and no voice/fax calls being made a 128K connection is possible!
 
If you have the full whack ISDN 2e you usually also get use of the extra 20kbps, service/control channel.
 
Basically you can't connect another two B-channels, just one; plus all the lines will be engaged to others.
 
 
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