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| HiSax 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.
|However, if you wish to modify the HiSax sources, please note the following:
|HiSax has passed the ITU approval test suite with ELSA Quickstep ISDN cards
|and Eicon Technology Diva 2.01 PCI card.
|The certification is only valid for the combination of the tested software
|version and the tested hardware. Any changes to the HiSax source code may
|therefore affect the certification.
|Additional ITU approval tests have been carried out for all generic cards
|using Colognechip single chip solutions HFC-S PCI A for PCI cards as well
|as HFC-S USB based USB ISDN ta adapters.
|These tests included all layers 1-3 and as well all functional tests for
|the layer 1. Because all hardware based on these chips are complete ISDN
|solutions in one chip all cards and USB-TAs using these chips are to be
|regarded as approved for those tests. Some additional electrical tests
|of the layer 1 which are independent of the driver and related to a
|special hardware used will be regarded as approved if at least one
|solution has been tested including those electrical tests. So if cards
|or tas have been completely approved for any other os, the approval
|for those electrical tests is valid for linux, too.
|Please send any questions regarding this drivers or approval abouts to
|Additional information and the type approval documents will be found
|shortly on the Colognechip website www.colognechip.com
|If you change the main files of the HiSax ISDN stack, the certification will
|become invalid. Because in most countries it is illegal to connect
|unapproved ISDN equipment to the public network, I have to guarantee that
|changes in HiSax do not affect the certification.
|In order to make a valid certification apparent to the user, I have built in
|some validation checks that are made during the make process. The HiSax main
|files are protected by md5 checksums and the md5sum file is pgp signed by
|KeyID 1024/FF992F6D 1997/01/16 Karsten Keil <firstname.lastname@example.org>
|Key fingerprint = 92 6B F7 58 EE 86 28 C8 C4 1A E6 DC 39 89 F2 AA
|Only if the checksums are OK, and the signature of the file
|"drivers/isdn/hisax/md5sums.asc" match, is the certification valid; a
|message confirming this is then displayed during the hisax init process.
|The affected files are:
|Please send any changes, bugfixes and patches to me rather than implementing
|them directly into the HiSax sources.
|This does not reduce your rights granted by the GNU General Public License.
|If you wish to change the sources, go ahead; but note that then the
|certification is invalid even if you use one of the approved cards.
|Here are the certification registration numbers for ELSA Quickstep cards:
|German D133361J CETECOM ICT Services GmbH 0682
|European D133362J CETECOM ICT Services GmbH 0682
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