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Table of Contents:

Introduction

Section 1 – Testing Your Modem

Section 2 – What it All Means

Section 3 – 56k Access Numbers

Introduction

This document is designed to assist you in troubleshooting 56k modem connect speeds on your LT Win Modem. This document assumes that your modem is configured correctly, and that your modem is able to connect out to an Internet Service Provider. If your modem is not configured properly, or is not installed, it is suggested that you correct the problem before proceeding with this document. This document also assumes that Hyperterminal is installed. If Hyperterminal is not installed, it can be added by going under the communications section of the Windows Setup tab in Add/Remove programs.

Section 1 – Testing Your Modem

1. Make sure that you have a phone line attached to your LT Win Modem and that the line is not currently in use.
2. Click on Start -> Programs -> Accessories -> Communications -> Hyperterminal. Double click on the Hyperterm icon.
3. When it brings you up to the Connection Description window, click on the Cancel button.
4. Click on the File menu and then click on Properties. In the ‘Connect Using’ box, ensure that the LT Win Modem is listed. If it is not, change it. Click on the OK button to close out of the window. This will take you to a blank white screen.
5. Type in AT and press the Enter button. A message should come back that says ‘OK’.
6. Next, type in ATDT XXX-XXXX and press Enter, where XXX-XXXX is the number to your Internet Service Provider. If you do not have an Internet Service Provider, there is a list of numbers that you can dial located at the bottom of this document. Some businesses require you to dial a 9 or some other number to access an outside line. If you are in a building where this is required, put a 9, in front of the ISP’s phone number. Once you have the number typed in, press the Enter key to begin dialing. Wait for the Connect message. If you get a login prompt, go ahead and log in. If you do not get a login prompt, type in some characters.
7. Next, we need to put the modem into command mode. To do this, type +++ (note: you do not need to press Enter). When you get the ‘OK’ message, type the command ati11. Below is a sample of what your screen should look like:

ati11

Description Status

--------------- ------------

Last Connection 56K

Initial Transmit Carrier Rate 31200

Initial Receive Carrier Rate 26400

Final Transmit Carrier Rate 31200

Final Receive Carrier Rate 26400

Protocol Negotiation Result LAPM

Data Compression Result V42bis

Estimated Noise Level 60

Receive Signal Power Level (-dBm) 25

Transmit Signal Power Level (-dBm) 10

Round Trip Delay (msec) 18

Press any key to continue; ESC to quit.

Description Status

--------------- ------------

Near Echo Level (-dBm) 16

Far Echo Level (-dBm) 72

Transmit Frame Count 17

Transmit Frame Error Count 0

Receive Frame Count 11

Receive Frame Error Count 0

Retrain by Local Modem 1

Retrain by Remote Modem 0

Call Termination Cause 0

Robbed-Bit Signaling NA

Digital Loss (dB) NA

Remote Server ID 4355C1

OK

8. Be sure to disconnect and reconnect several times. Also be sure to try several different numbers, both local and toll free.

Section 2 – What it All Means

1. If you get good connections, or you consistently get better connections on long distance or toll-free numbers than you do on local numbers, it is likely that there is an incompatibility between the way the Telephone Company handles local calls and your modem. You will probably not be able to do very much about this until your telephone company makes an 'upgrade'.
2. If you do not get 56k connections to any of the numbers, it is likely that you have a problem on your local line. There could be many factors that impair your connect speeds. It could be the equipment at the phone company office. You could have a bad line to the switching office, or you could be too far away. You may also be on a phone line with an extra analog to digital conversion.

It is also possible that you have equipment at your location that is interfering with the modem. Try unplugging ALL devices connected to the telephone line except for your modem and repeat the tests in section 1.

3. If you get good 56k connections to some local numbers but not others, the facilities used to serve the different providers may be the cause. Factors dealing with the telephone network, the equipment, and firmware at the ISP could have an impact on your connection speeds. You may want to consider trying another ISP that looks like it will give you good connections. You may also want to contact your ISP to inquire into the type of equipment and firmware they are using.

Section 3 – 56k Access Numbers

Below is a list of 56k access numbers. All of these numbers are either Kflex or V.90 compatible. You can connect out to these numbers for the testing procedure in Section 1, however you cannot log in.

1-800-590-4857 - (IBM Global network access v.90)

1-800-784-3638 - (Netcom - supports v.90)

1-800-638-1483 - (GTE Net access - supports Flex)

1-800-853-7921 - (Earthlink - Kflex)

1-800-534-7097 - (Earthlink - Kflex)

1-800-304-4226 - (Shore.net - Kflex)

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