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56K connect possible using NT4 RAS?

By Muns ·
I have a 56k USRobotics modem on an NT4.0 server. The maximum connect speed I can get when RASing in is approx 33k. I have set the COM port speed to 58k.

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56K connect possible using NT4 RAS?

by Iphicles In reply to 56K connect possible usin ...

line noise and FCC regulations only get you to 50 kbps. also, your isp simply may be slow. try and set the max speed to 115.

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56K connect possible using NT4 RAS?

by Muns In reply to 56K connect possible usin ...

I'm not actually going through an ISP, I'm dialling straight in from home.

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56K connect possible using NT4 RAS?

by fgarber In reply to 56K connect possible usin ...

If you can get 33K consider yourself fortunate. The max line speed the phone company guarantees is 9.6kbps. Our remote sites average 24k. Some will connect at 288k sometimes although rarely.

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56K connect possible using NT4 RAS?

by Muns In reply to 56K connect possible usin ...

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56K connect possible using NT4 RAS?

by Buckle In reply to 56K connect possible usin ...

I have been told that to guaranty 56K you need an ISDN line instation and a 56K modem close to a digital exchange.

I was also told that it MIGHT be possible with 56K modem instations and out stations if both ends were close to a digital exchange.

This last statement appears to be complete bunk, I have 8 instations on a RAS server with 56K US Robitics modems about 150 metres from a digital exchange. I can get about 34K when I use one of them to dial "out" to another. Sorry to give only bad news but I don't think 56K modems work as instations.

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56K connect possible using NT4 RAS?

by Muns In reply to 56K connect possible usin ...

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56K connect possible using NT4 RAS?

by McKayTech In reply to 56K connect possible usin ...

The short answer is no - 33k will be your maximum speed when connecting modem-to-modem using conventional analog (1FB) telephone lines at both ends.

A 56k connection requires that there be no more than one analog-to-digital translation in the path between modem and ISP. Since that translation occurs at the Central Office where your analog phone line terminates, the rest of the path must be entirely digital. That is not the case when the signal must be re-converted to analog to come to yourserver via a plain telephone line.

It's frustrating, but it's a technical limitation of the v.90 protocol. Also, a 56k connection is currently limited to 52k download and is assymetrical.

Without going to DSL, cable modem or ISDN, 33k is about what you can expect and the actual throughput will often be much worse.

paul

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56K connect possible using NT4 RAS?

by Muns In reply to 56K connect possible usin ...

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56K connect possible using NT4 RAS?

by Muns In reply to 56K connect possible usin ...

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