Having set up Trumpet Winsock, to dial to your ISP open Trumpet Winsock and choose
Manual Login from the Dialer menu. Then type the command "atdt" followed by the
dialin phone number of your ISP and key Enter. After receiving the screen message
CONNECT key Escape. You are now logged in and can open a browser or mail client.
In the setup don’t use VJ compression, which is only for SLIP; just use PAP, not CHAP.
(PAP eliminates need for login script as it incorporates password protection transpar-
ently.) Set DCD on and ensure &C1 is in the initialization string (default). Ensure there
is only one WINSOCK.DLL on the partition and that it is in the path.
Don’t forget, if you are going to use a browser like Internet Explorer, to input under
Connection Properties/TCPIP settings the DNS IP address provided by your ISP.
Otherwise you will get error messages when attempting to access any website.
OS/2 provides integrated support for serial hardware, so no special drivers are needed
for Terminal Adapters connected to a serial port. For a dialer use shareware InJoy.
Setup of this dialer is very simple; just input username, password, dialin number and
the ISP’s DNS IP addresses. Click Dial and in four seconds you are on line. InJoy
provides very useful statistics while online (and a bar graph displaying instantaneous
usage of maximum channel capacity), and a detailed log at the conclusion of the ses-
sion.
For an internal card using a CAPI driver use isdnPM as a dialer.
You may want to replace IBM’s comm drivers with a shareware driver package called
SIO from Ray Gwinn; see the accompanying Resource box. SIO includes a small but
clever component called VMODEM which lets you define a virtual serial port that
ordinary terminal software can use to virtually dial into a remote host; VMODEM
converts the ATDT dial string into a telnet connection and spoofs the terminal software
with a dummy CONNECT message.
SIO also includes PMLM ("Poor Man’s Line Monitor") which can create a complete
character-by-character log of the session, just as a protocol analyzer would do.
Note that you cannot use an ordinary terminal program like Procomm or Hypertermi-
nal to log on since you must execute a PAP protocol exchange.
For both dialers you must also input the proper Terminal Adapter initialization string,
which sets the type of ISDN call desired (e.g. PPP 64 kbps, Multilink PPP 128 kbps,
HDLC). Obtain this initialization string from the manufacturer’s user manual, or
manually from the provided INF file. For example the UTA2500 WIN95.INF file shows:
HKR, Init, 2,, "AT%A2=1<cr>" [this sets to 64 kbps session protocol]
HKR, Init, 3,, "AT&C1&D2E0V1X0<cr>" [this sets other modem characeristics]
If one has a working Win9x setup, one can use View Log in RAS to extract the initializa-
tion string, or use Regedit to view as it is kept in the Registry.
Apple Several hardware devices support the MacOS at various levels.
Linux Almost every distribution contains "ISDN HowTo" which includes everything
you need to know for a manual install. RedHat 7.0 and SuSE now include Point and
Click installation routines which some report to be even easier than on Windows. See
the Resource box for an online FAQ.
12
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