# SPDX-License-Identifier: GPL-2.0-only
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config ISDN_CAPI
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def_bool ISDN && BT
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help
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This provides CAPI (the Common ISDN Application Programming
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Interface) Version 2.0, a standard making it easy for programs to
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access ISDN hardware in a device independent way. (For details see
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<https://www.capi.org/>.) CAPI supports making and accepting voice
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and data connections, controlling call options and protocols,
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as well as ISDN supplementary services like call forwarding or
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three-party conferences (if supported by the specific hardware
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driver).
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This subsystem requires a hardware specific driver.
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See CONFIG_BT_CMTP for the last remaining regular driver
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in the kernel that uses the CAPI subsystem.
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config CAPI_TRACE
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def_bool BT_CMTP
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help
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If you say Y here, the kernelcapi driver can make verbose traces
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of CAPI messages. This feature can be enabled/disabled via IOCTL for
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every controller (default disabled).
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config ISDN_CAPI_MIDDLEWARE
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def_bool BT_CMTP && TTY
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help
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This option will enhance the capabilities of the /dev/capi20
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interface. It will provide a means of moving a data connection,
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established via the usual /dev/capi20 interface to a special tty
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device. If you want to use pppd with pppdcapiplugin to dial up to
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your ISP, say Y here.
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