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1# SPDX-License-Identifier: GPL-2.0-only2#3# modularer ISDN driver4#5 6menuconfig MISDN7 tristate "Modular ISDN driver"8 help9 Enable support for the modular ISDN driver.10 11if MISDN != n12 13config MISDN_DSP14 tristate "Digital Audio Processing of transparent data"15 depends on MISDN16 select BITREVERSE17 help18 Enable support for digital audio processing capability.19 20 This module may be used for special applications that require21 cross connecting of bchannels, conferencing, dtmf decoding,22 echo cancellation, tone generation, and Blowfish encryption and23 decryption. It may use hardware features if available.24 25 E.g. it is required for PBX4Linux. Go to http://isdn.eversberg.eu26 and get more information about this module and its usage.27 28 If unsure, say 'N'.29 30config MISDN_L1OIP31 tristate "ISDN over IP tunnel"32 depends on MISDN33 help34 Enable support for ISDN over IP tunnel.35 36 It features:37 - dynamic IP exchange, if one or both peers have dynamic IPs38 - BRI (S0) and PRI (S2M) interface39 - layer 1 control via network keepalive frames40 - direct tunneling of physical interface via IP41 42 NOTE: This protocol is called 'Layer 1 over IP' and is not43 compatible with ISDNoIP (Agfeo) or TDMoIP. Protocol description is44 provided in the source code.45 46source "drivers/isdn/hardware/mISDN/Kconfig"47 48endif #MISDN49