# SPDX-License-Identifier: GPL-2.0-only
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#
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# modularer ISDN driver
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#
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menuconfig MISDN
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tristate "Modular ISDN driver"
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help
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Enable support for the modular ISDN driver.
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if MISDN != n
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config MISDN_DSP
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tristate "Digital Audio Processing of transparent data"
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depends on MISDN
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select BITREVERSE
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help
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Enable support for digital audio processing capability.
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This module may be used for special applications that require
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cross connecting of bchannels, conferencing, dtmf decoding,
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echo cancellation, tone generation, and Blowfish encryption and
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decryption. It may use hardware features if available.
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E.g. it is required for PBX4Linux. Go to http://isdn.eversberg.eu
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and get more information about this module and its usage.
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If unsure, say 'N'.
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config MISDN_L1OIP
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tristate "ISDN over IP tunnel"
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depends on MISDN
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help
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Enable support for ISDN over IP tunnel.
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It features:
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- dynamic IP exchange, if one or both peers have dynamic IPs
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- BRI (S0) and PRI (S2M) interface
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- layer 1 control via network keepalive frames
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- direct tunneling of physical interface via IP
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NOTE: This protocol is called 'Layer 1 over IP' and is not
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compatible with ISDNoIP (Agfeo) or TDMoIP. Protocol description is
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provided in the source code.
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source "drivers/isdn/hardware/mISDN/Kconfig"
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endif #MISDN
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