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diff --git a/Documentation/isdn/README.diversion b/Documentation/isdn/README.diversion deleted file mode 100644 index bddcd5fb86ff..000000000000 --- a/Documentation/isdn/README.diversion +++ /dev/null @@ -1,127 +0,0 @@ -The isdn diversion services are a supporting module working together with -the isdn4linux and the HiSax module for passive cards. -Active cards, TAs and cards using a own or other driver than the HiSax -module need to be adapted to the HL<->LL interface described in a separate -document. The diversion services may be used with all cards supported by -the HiSax driver. -The diversion kernel interface and controlling tool divertctrl were written -by Werner Cornelius (werner@isdn4linux.de or werner@titro.de) under the -GNU General Public License. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -Table of contents -================= - -1. Features of the i4l diversion services - (Or what can the i4l diversion services do for me) - -2. Required hard- and software - -3. Compiling, installing and loading/unloading the module - Tracing calling and diversion information - -4. Tracing calling and diversion information - -5. Format of the divert device ASCII output - - -1. Features of the i4l diversion services - (Or what can the i4l diversion services do for me) - - The i4l diversion services offers call forwarding and logging normally - only supported by isdn phones. Incoming calls may be diverted - unconditionally (CFU), when not reachable (CFNR) or on busy condition - (CFB). - The diversions may be invoked statically in the providers exchange - as normally done by isdn phones. In this case all incoming calls - with a special (or all) service identifiers are forwarded if the - forwarding reason is met. Activated static services may also be - interrogated (queried). - The i4l diversion services additionally offers a dynamic version of - call forwarding which is not preprogrammed inside the providers exchange - but dynamically activated by i4l. - In this case all incoming calls are checked by rules that may be - compared to the mechanism of ipfwadm or ipchains. If a given rule matches - the checking process is finished and the rule matching will be applied - to the call. - The rules include primary and secondary service identifiers, called - number and subaddress, callers number and subaddress and whether the rule - matches to all filtered calls or only those when all B-channel resources - are exhausted. - Actions that may be invoked by a rule are ignore, proceed, reject, - direct divert or delayed divert of a call. - All incoming calls matching a rule except the ignore rule a reported and - logged as ASCII via the proc filesystem (/proc/net/isdn/divert). If proceed - is selected the call will be held in a proceeding state (without ringing) - for a certain amount of time to let an external program or client decide - how to handle the call. - - -2. Required hard- and software - - For using the i4l diversion services the isdn line must be of a EURO/DSS1 - type. Additionally the i4l services only work together with the HiSax - driver for passive isdn cards. All HiSax supported cards may be used for - the diversion purposes. - The static diversion services require the provider having static services - CFU, CFNR, CFB activated on an MSN-line. The static services may not be - used on a point-to-point connection. Further the static services are only - available in some countries (for example germany). Countries requiring the - keypad protocol for activating static diversions (like the netherlands) are - not supported but may use the tty devices for this purpose. - The dynamic diversion services may be used in all countries if the provider - enables the feature CF (call forwarding). This should work on both MSN- and - point-to-point lines. - To add and delete rules the additional divertctrl program is needed. This - program is part of the isdn4kutils package. - -3. Compiling, installing and loading/unloading the module - Tracing calling and diversion information - - - To compile the i4l code with diversion support you need to say yes to the - DSS1 diversion services when selecting the i4l options in the kernel - config (menuconfig or config). - After having properly activated a make modules and make modules_install all - required modules will be correctly installed in the needed modules dirs. - As the diversion services are currently not included in the scripts of most - standard distributions you will have to add a "insmod dss1_divert" after - having loaded the global isdn module. - The module can be loaded without any command line parameters. - If the module is actually loaded and active may be checked with a - "cat /proc/modules" or "ls /proc/net/isdn/divert". The divert file is - dynamically created by the diversion module and removed when the module is - unloaded. - - -4. Tracing calling and diversion information - - You also may put a "cat /proc/net/isdn/divert" in the background with the - output redirected to a file. Then all actions of the module are logged. - The divert file in the proc system may be opened more than once, so in - conjunction with inetd and a small remote client on other machines inside - your network incoming calls and reactions by the module may be shown on - every listening machine. - If a call is reported as proceeding an external program or client may - specify during a certain amount of time (normally 4 to 10 seconds) what - to do with that call. - To unload the module all open files to the device in the proc system must - be closed. Otherwise the module (and isdn.o) may not be unloaded. - -5. Format of the divert device ASCII output - - To be done later - |