General Information
INSYS Pocket ISDN
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General Information
The INSYS Pocket ISDN is available in two versions. These are
INSYS Pocket ISDN Profi
INSYS Pocket ISDN Internet
Both versions of the INSYS Pocket ISDN differ in the following characteristics:
INSYS Pocket ISDN
Internet
Profi
Multilink PPP
Yes
No
Security callback
No
Yes
X.25
No
Yes
X.31 in D channel:
No
Yes
Table 1: Differences between INSYS Pocket ISDN Profi and Internet
Both versions are referred to as INSYS Pocket ISDN in the further course of this
manual. If the INSYS Pocket ISDN Profi differs from the INSYS Pocket ISDN Inter-
net, this will be mentioned explicitly in the respective sections.
Please note that you cannot use an ISDN device for digital data
communication to establish a connection to an analogue modem.
4.1
Product Description
The INSYS Pocket ISDN connects a PC (or other device with a serial interface) to
the ISDN network. It provides access to online services like Internet, AOL/Com-
puServe and T-Online. Moreover, point-to-point connections between two ISDN
data terminal devices or a connection to a GSM modem can be established. The IN-
SYS Pocket ISDN can be considered as digital replacement for an analogue mo-
dem.
In order to operate the TA, you will need:
an ISDN basic rate interface (BRI) (replaces the analogue telephone connection).
The basic rate interface can be ordered with the telephone service provider.
a PC with serial RS232 interface (RS232)
The serial interface of the PC should be suitable for data rates of up to 115.2 kbps.
It might be possible that older PCs require an additional PC card for this.
It is possible to increase the data rates over the ISDN line to 230.4 kbps using Mul-
tilink PPP with the INSYS Pocket ISDN Internet.
