1 # SPDX-License-Identifier: GPL-2.0-only
3 # ISDN device configuration
8 depends on NET && NETDEVICES
9 depends on !S390 && !UML
11 ISDN ("Integrated Services Digital Network", called RNIS in France)
12 is a fully digital telephone service that can be used for voice and
13 data connections. If your computer is equipped with an ISDN
14 adapter you can use it to connect to your Internet service provider
15 (with SLIP or PPP) faster than via a conventional telephone modem
16 (though still much slower than with DSL) or to make and accept
17 voice calls (eg. turning your PC into a software answering machine
20 Select this option if you want your kernel to support ISDN.
25 tristate "Old ISDN4Linux (deprecated)"
28 This driver allows you to use an ISDN adapter for networking
29 connections and as dialin/out device. The isdn-tty's have a built
30 in AT-compatible modem emulator. Network devices support autodial,
31 channel-bundling, callback and caller-authentication without having
32 a daemon running. A reduced T.70 protocol is supported with tty's
33 suitable for German BTX. On D-Channel, the protocols EDSS1
34 (Euro-ISDN) and 1TR6 (German style) are supported. See
35 <file:Documentation/isdn/README> for more information.
37 ISDN support in the linux kernel is moving towards a new API,
38 called CAPI (Common ISDN Application Programming Interface).
39 Therefore the old ISDN4Linux layer will eventually become obsolete.
40 It is still available, though, for use with adapters that are not
41 supported by the new CAPI subsystem yet.
43 source "drivers/isdn/i4l/Kconfig"
46 tristate "CAPI 2.0 subsystem"
48 This provides CAPI (the Common ISDN Application Programming
49 Interface) Version 2.0, a standard making it easy for programs to
50 access ISDN hardware in a device independent way. (For details see
51 <http://www.capi.org/>.) CAPI supports making and accepting voice
52 and data connections, controlling call options and protocols,
53 as well as ISDN supplementary services like call forwarding or
54 three-party conferences (if supported by the specific hardware
57 Select this option and the appropriate hardware driver below if
58 you have an ISDN adapter supported by the CAPI subsystem.
62 source "drivers/isdn/capi/Kconfig"
64 source "drivers/isdn/hardware/Kconfig"
68 source "drivers/isdn/gigaset/Kconfig"
70 source "drivers/isdn/hysdn/Kconfig"
72 source "drivers/isdn/mISDN/Kconfig"