IBM 19K5716 ユーザーズマニュアル

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IBM ISDN PC Card:User’s Guide
 
3. You are using the correct Dial-Up Networking connection that configured for 
use with with the PC Card.
4. Your ISP supports the appropriate protocols. The ISP might conceivably 
recommend any protocol, such as V.120, asynchronous PPP, X.75, or any other 
protocol. Contact your ISP and find out the protocol to use. Install cFos and 
create a Dial-Up Networking connection according to the procedures in this 
guide and your ISP's instructions.
No connection to your ISP at 128 kbit/s
If you suspect that the IBM International ISDN PC Card is only operating using 
one ISDN B channel (64 kbit/s) although you have configured the system to use 
both B channels, please verify the following:
1. Your ISP supports multilink connections, a 128 kbit/s connection over two 
ISDN B channels simultaneously.
2. If you are using Windows 95, make sure you have installed the Microsoft Dial-
Up Networking Update 1.3. Various language versions are available on the 
CD. Installation instructions can be found in Section “Upgrading Dial-Up 
Networking for Windows 95” on page 18.
3. You have followed the instructions in Section “Setting Up Internet Access” on 
page 106.
cFos was installed with all COM ports selected. Now my modem takes COM port 
10 or higher. How can this be solved?
If you select all available COM ports during the cFos installation, then cFos will 
occupy all COM ports, up to COM9. This might cause problems later when you 
install an analog modem. There are two ways to circumvent this problem:
1. Try to use as few COM ports as possible. Three to four COM ports should be 
enough for day-to-day use of cFos with the IBM International ISDN PC Card.
2. If possible, install the analog modem before you install the IBM International 
ISDN PC Card and cFos.
3. If you have already installed the IBM International ISDN PC Card, then click 
Start -> Programs -> cFos ISDN & DSL Driver
 and select Configure cFos. In 
the cFos configuration program, select the menu command Configure COM 
ports
. In the list of available COM ports, deactivate the one you want to use 
for your analog modem. Click OK, then Exit. When asked whether you want 
to save the changes, click Yes. In the last window, click OK. Restart your 
computer if necessary.
CAUTION:
When following the instructions above to make a certain COM port available 
for your analog modem, make sure that the COM port you release is not 
currently used by one of cFos's emulated modems. You can verify this by 
clicking “Start / Settings / Control Panel / Modems”. Furthermore, make sure 
that your Dial-Up Network connections are not using this COM port.
Windows 9x, Windows Me
ISDNmst.fm  Page 232  Wednesday, January 15, 2003  9:22 AM