| # SPDX-License-Identifier: GPL-2.0-only |
| # |
| # Old ISDN4Linux config |
| # |
| |
| if ISDN_I4L |
| |
| config ISDN_PPP |
| bool "Support synchronous PPP" |
| depends on INET |
| select SLHC |
| help |
| Over digital connections such as ISDN, there is no need to |
| synchronize sender and recipient's clocks with start and stop bits |
| as is done over analog telephone lines. Instead, one can use |
| "synchronous PPP". Saying Y here will include this protocol. This |
| protocol is used by Cisco and Sun for example. So you want to say Y |
| here if the other end of your ISDN connection supports it. You will |
| need a special version of pppd (called ipppd) for using this |
| feature. See <file:Documentation/isdn/README.syncppp> and |
| <file:Documentation/isdn/syncPPP.FAQ> for more information. |
| |
| config ISDN_PPP_VJ |
| bool "Use VJ-compression with synchronous PPP" |
| depends on ISDN_PPP |
| help |
| This enables Van Jacobson header compression for synchronous PPP. |
| Say Y if the other end of the connection supports it. |
| |
| config ISDN_MPP |
| bool "Support generic MP (RFC 1717)" |
| depends on ISDN_PPP |
| help |
| With synchronous PPP enabled, it is possible to increase throughput |
| by bundling several ISDN-connections, using this protocol. See |
| <file:Documentation/isdn/README.syncppp> for more information. |
| |
| config IPPP_FILTER |
| bool "Filtering for synchronous PPP" |
| depends on ISDN_PPP |
| help |
| Say Y here if you want to be able to filter the packets passing over |
| IPPP interfaces. This allows you to control which packets count as |
| activity (i.e. which packets will reset the idle timer or bring up |
| a demand-dialled link) and which packets are to be dropped entirely. |
| You need to say Y here if you wish to use the pass-filter and |
| active-filter options to ipppd. |
| |
| config ISDN_PPP_BSDCOMP |
| tristate "Support BSD compression" |
| depends on ISDN_PPP |
| help |
| Support for the BSD-Compress compression method for PPP, which uses |
| the LZW compression method to compress each PPP packet before it is |
| sent over the wire. The machine at the other end of the PPP link |
| (usually your ISP) has to support the BSD-Compress compression |
| method as well for this to be useful. Even if they don't support it, |
| it is safe to say Y here. |
| |
| config ISDN_AUDIO |
| bool "Support audio via ISDN" |
| help |
| If you say Y here, the modem-emulator will support a subset of the |
| EIA Class 8 Voice commands. Using a getty with voice-support |
| (mgetty+sendfax by <gert@greenie.muc.de> with an extension, available |
| with the ISDN utility package for example), you will be able to use |
| your Linux box as an ISDN-answering machine. Of course, this must be |
| supported by the lowlevel driver also. Currently, the HiSax driver |
| is the only voice-supporting driver. See |
| <file:Documentation/isdn/README.audio> for more information. |
| |
| config ISDN_TTY_FAX |
| bool "Support AT-Fax Class 1 and 2 commands" |
| depends on ISDN_AUDIO |
| help |
| If you say Y here, the modem-emulator will support a subset of the |
| Fax Class 1 and 2 commands. Using a getty with fax-support |
| (mgetty+sendfax, hylafax), you will be able to use your Linux box as |
| an ISDN-fax-machine. This must be supported by the lowlevel driver |
| also. See <file:Documentation/isdn/README.fax> for more information. |
| |
| config ISDN_X25 |
| bool "X.25 PLP on top of ISDN" |
| depends on X25 |
| help |
| This feature provides the X.25 protocol over ISDN connections. |
| See <file:Documentation/isdn/README.x25> for more information |
| if you are thinking about using this. |
| |
| |
| menu "ISDN feature submodules" |
| |
| config ISDN_DRV_LOOP |
| tristate "isdnloop support" |
| depends on BROKEN_ON_SMP |
| help |
| This driver provides a virtual ISDN card. Its primary purpose is |
| testing of linklevel features or configuration without getting |
| charged by your service-provider for lots of phone calls. |
| You need will need the loopctrl utility from the latest isdn4k-utils |
| package to set up this driver. |
| |
| config ISDN_DIVERSION |
| tristate "Support isdn diversion services" |
| help |
| This option allows you to use some supplementary diversion |
| services in conjunction with the HiSax driver on an EURO/DSS1 |
| line. |
| |
| Supported options are CD (call deflection), CFU (Call forward |
| unconditional), CFB (Call forward when busy) and CFNR (call forward |
| not reachable). Additionally the actual CFU, CFB and CFNR state may |
| be interrogated. |
| |
| The use of CFU, CFB, CFNR and interrogation may be limited to some |
| countries. The keypad protocol is still not implemented. CD should |
| work in all countries if the service has been subscribed to. |
| |
| Please read the file <file:Documentation/isdn/README.diversion>. |
| |
| endmenu |
| |
| comment "ISDN4Linux hardware drivers" |
| |
| # end ISDN_I4L |
| endif |
| |