<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> <HTML> <HEAD> <META NAME="GENERATOR" CONTENT="LinuxDoc-Tools 0.9.21"> <TITLE>FAQ for isdn4linux</TITLE> <LINK HREF="i4lfaq-1.html" REL=next> </HEAD> <BODY> <A HREF="i4lfaq-1.html">Next</A> Previous Contents <HR> <H1>FAQ for isdn4linux</H1> <H2>Matthias Hessler (<CODE> <A HREF="mailto:hessler@isdn4linux.de">hessler@isdn4linux.de</A></CODE>)</H2>v2.0.75, 1. February 2003 <HR> <EM>If you are reading this FAQ online, you may consider downloading the whole thing, and reading it offline (much cheaper). To download the latest version of this FAQ in TXT/HTML/SGML format, go to the homepage of this FAQ: <A HREF="http://www.mhessler.de/i4lfaq/">http://www.mhessler.de/i4lfaq/</A>. A German translation of the FAQ is available at: <A HREF="http://www.wolf-b.de">http://www.wolf-b.de</A>. This FAQ answers questions that were frequently asked in the newsgroup de.alt.comm.isdn4linux. It contains questions any user should know about ISDN under Linux using isdn4linux, as well as hints on how to best make use of all the features isdn4linux provides. Version 2 of the FAQ is derived from an earlier version which had become outdated at the time of this writing. To obtain information on old versions of isdn4linux (1997 and earlier) please have a look at the FAQ version 1.3.4. About the format of this FAQ: The main basis of this FAQ is the i4l mailing list (see question <A HREF="i4lfaq-4.html#docu_mailinglist">docu_mailinglist</A>). I've treated the knowledge gained from reading as public domain, without quoting the author of the original mail. The FAQ is now written in SGML, as this format is flexible to convert into any other form of documentation (though some restrictions apply). The FAQ is now maintained in English since German-speaking people can easily follow the mailing list/newsgroup (or search in the archives). Whoever wants to translate back to German is welcome to do so! The countless links in this documents are not always complete and I'm sure many are no longer correct. I do not have the time to check them all. If you discover a bad link, please let me know (I'll try to install some automatic checking when I have the time). Additions, improvements and other suggestions are always welcome (also correction of typographical errors!), preferably send "diffs" from the SGML version. Thank you very much in advance! Send feedback about this FAQ to: <CODE> <A HREF="mailto:i4lfaq@isdn4linux.de">i4lfaq@isdn4linux.de</A></CODE> or: <CODE> <A HREF="mailto:hessler@isdn4linux.de">hessler@isdn4linux.de</A></CODE>. The newest version of this FAQ can be found at: <CODE> <A HREF="http://www.mhessler.de/i4lfaq/">http://www.mhessler.de/i4lfaq/</A></CODE> or: <CODE> <A HREF="http://www.isdn4linux.de/faq/">http://www.isdn4linux.de/faq/</A></CODE>. This FAQ is protected by the GNU General Public License (GPL) Version 2; (C) 1999-2002 Matthias Hessler (for version 2.0) Distribution under the terms of the GPL is welcome. However, we offer NO GUARANTEES for the information herein. Please read the GNU General Public License for further details. A printed version is available from Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. An electronic version is available from the author.</EM> <HR> <P> <H2><A NAME="toc1">1.</A> <A HREF="i4lfaq-1.html">general: General information about isdn4linux </A></H2> <UL> <LI><A NAME="toc1.1">1.1</A> <A HREF="i4lfaq-1.html#ss1.1">general_i4l: What is isdn4linux? </A> <LI><A NAME="toc1.2">1.2</A> <A HREF="i4lfaq-1.html#ss1.2">general_hardware: What hardware is supported by isdn4linux? </A> <LI><A NAME="toc1.3">1.3</A> <A HREF="i4lfaq-1.html#ss1.3">general_features: What features are supported by isdn4linux? </A> <LI><A NAME="toc1.4">1.4</A> <A HREF="i4lfaq-1.html#ss1.4">general_countries: Which countries are supported by isdn4linux? </A> <LI><A NAME="toc1.5">1.5</A> <A HREF="i4lfaq-1.html#ss1.5">general_docu: Where do I find more documentation, how-to's, helpful tips & tricks? </A> <LI><A NAME="toc1.6">1.6</A> <A HREF="i4lfaq-1.html#ss1.6">general_getlatest: Where do I get the latest version of isdn4linux? </A> <LI><A NAME="toc1.7">1.7</A> <A HREF="i4lfaq-1.html#ss1.7">general_contacts: How can I get in contact with the developers? </A> </UL> <P> <H2><A NAME="toc2">2.</A> <A HREF="i4lfaq-2.html">distrib: Distribution </A></H2> <UL> <LI><A NAME="toc2.1">2.1</A> <A HREF="i4lfaq-2.html#ss2.1">distrib_getlatest: How can I get the latest isdn4linux? </A> <LI><A NAME="toc2.2">2.2</A> <A HREF="i4lfaq-2.html#ss2.2">distrib_cvs: How can I access the source from the current development/what is the CVS tree all about? </A> </UL> <P> <H2><A NAME="toc3">3.</A> <A HREF="i4lfaq-3.html">Features</A></H2> <UL> <LI><A NAME="toc3.1">3.1</A> <A HREF="i4lfaq-3.html#ss3.1">feature_not: Which ISDN features cannot be offered by isdn4linux? </A> <LI><A NAME="toc3.2">3.2</A> <A HREF="i4lfaq-3.html#ss3.2">feature_data: Which ISDN data transmission modes are supported? </A> <LI><A NAME="toc3.3">3.3</A> <A HREF="i4lfaq-3.html#ss3.3">feature_voice: Has isdn4linux voice support (e.g. answering machine, voice-over-ip gateway for H.323 clients)? </A> <LI><A NAME="toc3.4">3.4</A> <A HREF="i4lfaq-3.html#ss3.4">feature_fax: Can I fax with isdn4linux? </A> <LI><A NAME="toc3.5">3.5</A> <A HREF="i4lfaq-3.html#ss3.5">feature_modem: Can isdn4linux connect to/be called by an analog modem? </A> <LI><A NAME="toc3.6">3.6</A> <A HREF="i4lfaq-3.html#ss3.6">feature_divert: Is it possible to initiate call forwarding with i4l? </A> <LI><A NAME="toc3.7">3.7</A> <A HREF="i4lfaq-3.html#ss3.7">feature_ipx: Can I route ipx/spx over ISDN with Linux? </A> <LI><A NAME="toc3.8">3.8</A> <A HREF="i4lfaq-3.html#ss3.8">feature_2channel: Does isdn4linux support channel bundling? </A> <LI><A NAME="toc3.9">3.9</A> <A HREF="i4lfaq-3.html#ss3.9">feature_diald: Can I combine isdn4linux with diald? </A> <LI><A NAME="toc3.10">3.10</A> <A HREF="i4lfaq-3.html#ss3.10">feature_dod: Does the driver support "dial on demand"? </A> <LI><A NAME="toc3.11">3.11</A> <A HREF="i4lfaq-3.html#ss3.11">feature_sms: Can I send SMS (short messages) to my mobile phone via ISDN? </A> <LI><A NAME="toc3.12">3.12</A> <A HREF="i4lfaq-3.html#ss3.12">feature_btx: Is the German videotex/Btx/Datex-J possible with isdn4linux? </A> <LI><A NAME="toc3.13">3.13</A> <A HREF="i4lfaq-3.html#ss3.13">feature_clock: Can I set the clock of my computer with ISDN? </A> <LI><A NAME="toc3.14">3.14</A> <A HREF="i4lfaq-3.html#ss3.14">feature_dosemu: Can I use isdn4linux under dosemu? </A> <LI><A NAME="toc3.15">3.15</A> <A HREF="i4lfaq-3.html#ss3.15">feature_capi: Is there a CAPI interface available? </A> <LI><A NAME="toc3.16">3.16</A> <A HREF="i4lfaq-3.html#ss3.16">feature_uus: Is UUS (user to user signaling) supported? </A> <LI><A NAME="toc3.17">3.17</A> <A HREF="i4lfaq-3.html#ss3.17">feature_subaddressing: Is subaddressing supported? </A> <LI><A NAME="toc3.18">3.18</A> <A HREF="i4lfaq-3.html#ss3.18">feature_gsmv110: Can I connect from my PDA via GMS cellular phone to isdn4linux? </A> <LI><A NAME="toc3.19">3.19</A> <A HREF="i4lfaq-3.html#ss3.19">feature_reversedcard: Can isdn4linux log ALL actions happening on the ISDN bus (dual mode/reversed card/COLP/...)? </A> <LI><A NAME="toc3.20">3.20</A> <A HREF="i4lfaq-3.html#ss3.20">feature_chargeint: Can isdn4linux hang up just before the ISDN provider would charge me for another unit? </A> <LI><A NAME="toc3.21">3.21</A> <A HREF="i4lfaq-3.html#ss3.21">feature_eurofile: Can isdn4linux download or offer files via EFT (Eurofile transfer)? </A> <LI><A NAME="toc3.22">3.22</A> <A HREF="i4lfaq-3.html#ss3.22">feature_leased: Can isdn4linux handle leased lines (e.g. D64S)? </A> <LI><A NAME="toc3.23">3.23</A> <A HREF="i4lfaq-3.html#ss3.23">feature_pointtopoint: Can isdn4linux work in point-to-point mode as well as in multi-device mode? </A> <LI><A NAME="toc3.24">3.24</A> <A HREF="i4lfaq-3.html#ss3.24">feature_ntmode: Does isdn4linux support running a card in NT mode? </A> <LI><A NAME="toc3.25">3.25</A> <A HREF="i4lfaq-3.html#ss3.25">feature_crossedcable: Can isdn4linux directly connect two ISDN user devices (two ISDN cards) via a crossed cable? </A> <LI><A NAME="toc3.26">3.26</A> <A HREF="i4lfaq-3.html#ss3.26">feature_lcr: Can isdn4linux do least cost routing (LCR)? </A> <LI><A NAME="toc3.27">3.27</A> <A HREF="i4lfaq-3.html#ss3.27">feature_internetdialin: Can isdn4linux be setup such that it dials into the Internet, whenever I call it via telephone? </A> <LI><A NAME="toc3.28">3.28</A> <A HREF="i4lfaq-3.html#ss3.28">feature_future: Which features are planned for the future? </A> </UL> <P> <H2><A NAME="toc4">4.</A> <A HREF="i4lfaq-4.html">docu: Documentation, Howto's, Tips & Tricks, Mailing List/Newsgroup </A></H2> <UL> <LI><A NAME="toc4.1">4.1</A> <A HREF="i4lfaq-4.html#ss4.1">docu_first: What documents should I read first? </A> <LI><A NAME="toc4.2">4.2</A> <A HREF="i4lfaq-4.html#ss4.2">docu_website: Where is the official website for isdn4linux? </A> <LI><A NAME="toc4.3">4.3</A> <A HREF="i4lfaq-4.html#ss4.3">docu_abc: Where do I find documentation on the abc extensions? </A> <LI><A NAME="toc4.4">4.4</A> <A HREF="i4lfaq-4.html#ss4.4">docu_newsgroup: Where is the newsgroup for isdn4linux? </A> <LI><A NAME="toc4.5">4.5</A> <A HREF="i4lfaq-4.html#ss4.5">docu_mailinglist: Where is the mailing list for isdn4linux? </A> <LI><A NAME="toc4.6">4.6</A> <A HREF="i4lfaq-4.html#ss4.6">docu_maillistdigest: How can I get a digest of the mailing list for isdn4linux (only one message per day)? </A> <LI><A NAME="toc4.7">4.7</A> <A HREF="i4lfaq-4.html#ss4.7">docu_mailarchive: Is there an archive of the isdn4linux mailing list? </A> </UL> <P> <H2><A NAME="toc5">5.</A> <A HREF="i4lfaq-5.html">hardware: Supported hardware, its specialities, and hardware-related problems </A></H2> <UL> <LI><A NAME="toc5.1">5.1</A> <A HREF="i4lfaq-5.html#ss5.1">hardware_support: Which hardware is supported? </A> <LI><A NAME="toc5.2">5.2</A> <A HREF="i4lfaq-5.html#ss5.2">hardware_activepassive: What is the difference between an active and a passive ISDN card? </A> <LI><A NAME="toc5.3">5.3</A> <A HREF="i4lfaq-5.html#ss5.3">hardware_recommend: Which card is recommended by the developers? </A> <LI><A NAME="toc5.4">5.4</A> <A HREF="i4lfaq-5.html#ss5.4">hardware_external: Does isdn4linux support external terminal adapters? </A> <LI><A NAME="toc5.5">5.5</A> <A HREF="i4lfaq-5.html#ss5.5">hardware_cabeling: How should I wire my ISDN cables? </A> <LI><A NAME="toc5.6">5.6</A> <A HREF="i4lfaq-5.html#ss5.6">hardware_irq: Why should I avoid IRQ 12 and 15 for my ISDN card? </A> <LI><A NAME="toc5.7">5.7</A> <A HREF="i4lfaq-5.html#ss5.7">hardware_irqsharing: Can the isdn4linux driver work with shared interrupts? </A> <LI><A NAME="toc5.8">5.8</A> <A HREF="i4lfaq-5.html#ss5.8">hardware_s2m: Which S2M cards are supported? </A> <LI><A NAME="toc5.9">5.9</A> <A HREF="i4lfaq-5.html#ss5.9">hardware_pcmcia: Which PCMCIA cards are supported? </A> <LI><A NAME="toc5.10">5.10</A> <A HREF="i4lfaq-5.html#ss5.10">hardware_smp: Can I run isdn4linux on my multi-CPU board? </A> <LI><A NAME="toc5.11">5.11</A> <A HREF="i4lfaq-5.html#ss5.11">hardware_alpha: Can I run isdn4linux on a DEC Alpha with Linux? </A> <LI><A NAME="toc5.12">5.12</A> <A HREF="i4lfaq-5.html#ss5.12">hardware_sun: Can I run isdn4linux on a Sun workstation? </A> <LI><A NAME="toc5.13">5.13</A> <A HREF="i4lfaq-5.html#ss5.13">hardware_ppc: Can I run isdn4linux on a PowerPC with Linux? </A> <LI><A NAME="toc5.14">5.14</A> <A HREF="i4lfaq-5.html#ss5.14">hardware_maxcards: How many ISDN cards can I put into my computer? </A> <LI><A NAME="toc5.15">5.15</A> <A HREF="i4lfaq-5.html#ss5.15">hardware_hfc: What is special about card with an HFC chip? </A> <LI><A NAME="toc5.16">5.16</A> <A HREF="i4lfaq-5.html#ss5.16">hardware_elsa: What should I know about ISDN cards from ELSA? </A> <LI><A NAME="toc5.17">5.17</A> <A HREF="i4lfaq-5.html#ss5.17">hardware_sedlbauer: What is special about the Sedlbauer card? </A> <LI><A NAME="toc5.18">5.18</A> <A HREF="i4lfaq-5.html#ss5.18">hardware_teles: What should I know about before buying an ISDN card from Teles? </A> <LI><A NAME="toc5.19">5.19</A> <A HREF="i4lfaq-5.html#ss5.19">hardware_fritz: What should I know when configuring a Fritz! card (also known as: AVM A1, Teledat 150, BT Speedway)? </A> <LI><A NAME="toc5.20">5.20</A> <A HREF="i4lfaq-5.html#ss5.20">hardware_avmb1: What is special about the AVM B1 card? </A> <LI><A NAME="toc5.21">5.21</A> <A HREF="i4lfaq-5.html#ss5.21">hardware_hypercope: What is special about the Hypercope cards? </A> <LI><A NAME="toc5.22">5.22</A> <A HREF="i4lfaq-5.html#ss5.22">hardware_icn: What is special about the ICN card? </A> <LI><A NAME="toc5.23">5.23</A> <A HREF="i4lfaq-5.html#ss5.23">hardware_isurf: What should I know about the Siemens I-Surf cards? </A> <LI><A NAME="toc5.24">5.24</A> <A HREF="i4lfaq-5.html#ss5.24">hardware_crossedcable1: If i4l uses one B-channel then the other one will be blocked (incoming as well as outgoing)... </A> <LI><A NAME="toc5.25">5.25</A> <A HREF="i4lfaq-5.html#ss5.25">hardware_crossedcable2: How can I test whether a a/b cable pair has been crossed? </A> <LI><A NAME="toc5.26">5.26</A> <A HREF="i4lfaq-5.html#ss5.26">hardware_pbx: i4l is connected to the internal bus of a PBX. Any problem? </A> <LI><A NAME="toc5.27">5.27</A> <A HREF="i4lfaq-5.html#ss5.27">hardware_telestrouble: The PNP tools done work with my Teles 16.3 PNP card! </A> <LI><A NAME="toc5.28">5.28</A> <A HREF="i4lfaq-5.html#ss5.28">hardware_elsacabletrouble: On my ELSA card, the LED for the loss of the TEI often blinks. My connections are also often disrupted... </A> <LI><A NAME="toc5.29">5.29</A> <A HREF="i4lfaq-5.html#ss5.29">hardware_elsairq: My ELSA Quickstep 1000 ISA card produces very many interrupts with the HiSax driver. Is this normal or a problem with the HiSax driver? </A> </UL> <P> <H2><A NAME="toc6">6.</A> <A HREF="i4lfaq-6.html">config: General information about Configuration </A></H2> <UL> <LI><A NAME="toc6.1">6.1</A> <A HREF="i4lfaq-6.html#ss6.1">config_msn: How should I set up isdn4linux with my MSNs? </A> <LI><A NAME="toc6.2">6.2</A> <A HREF="i4lfaq-6.html#ss6.2">config_hardware: How should I configure my hardware? Is there something special I should know about my ISDN card? </A> <LI><A NAME="toc6.3">6.3</A> <A HREF="i4lfaq-6.html#ss6.3">config_dialout: How should I configure dialout? </A> <LI><A NAME="toc6.4">6.4</A> <A HREF="i4lfaq-6.html#ss6.4">config_dialin: How should I configure dialin? </A> <LI><A NAME="toc6.5">6.5</A> <A HREF="i4lfaq-6.html#ss6.5">config_suse: I can not select my card in yast? </A> <LI><A NAME="toc6.6">6.6</A> <A HREF="i4lfaq-6.html#ss6.6">config_pnp: How do I configure a PNP (Plug and Play) card? </A> <LI><A NAME="toc6.7">6.7</A> <A HREF="i4lfaq-6.html#ss6.7">config_startstop: How can I start and stop the ISDN configuration? </A> <LI><A NAME="toc6.8">6.8</A> <A HREF="i4lfaq-6.html#ss6.8">config_kerneld: Why shouldn't I use <EM>kerneld</EM> to load the ISDN modules in the kernel as needed? </A> <LI><A NAME="toc6.9">6.9</A> <A HREF="i4lfaq-6.html#ss6.9">config_runlevel: How can I boot Linux sometimes with ISDN, and sometimes without? </A> <LI><A NAME="toc6.10">6.10</A> <A HREF="i4lfaq-6.html#ss6.10">config_manycards: How do I configure more than 1 ISDN card? </A> <LI><A NAME="toc6.11">6.11</A> <A HREF="i4lfaq-6.html#ss6.11">config_manychannels: How can I increase i4l's maximum number of channels? </A> <LI><A NAME="toc6.12">6.12</A> <A HREF="i4lfaq-6.html#ss6.12">config_gsmv110: How do I connect my PalmPilot via GSM over V.110 to my computer? </A> <LI><A NAME="toc6.13">6.13</A> <A HREF="i4lfaq-6.html#ss6.13">config_h323: How do I configure isdn4linux to act as a voice-over-ip gateway for H.323 clients? </A> <LI><A NAME="toc6.14">6.14</A> <A HREF="i4lfaq-6.html#ss6.14">config_point2point: How do I configure a point-to-point connection? </A> <LI><A NAME="toc6.15">6.15</A> <A HREF="i4lfaq-6.html#ss6.15">config_links: What helpful links are there about isdn4linux? </A> </UL> <P> <H2><A NAME="toc7">7.</A> <A HREF="i4lfaq-7.html">trouble: Troubleshooting </A></H2> <UL> <LI><A NAME="toc7.1">7.1</A> <A HREF="i4lfaq-7.html#ss7.1">trouble_22memory: I can't start ISDN on my machine with kernel 2.2.x. I get the error messages "init_module: Device or resource busy" and "isdn: Could not allocate device-struct.". </A> <LI><A NAME="toc7.2">7.2</A> <A HREF="i4lfaq-7.html#ss7.2">trouble_littlememory: How can I reduce isdn4linux's memory requirements? </A> <LI><A NAME="toc7.3">7.3</A> <A HREF="i4lfaq-7.html#ss7.3">trouble_debug: How do I get maximum debug output? </A> <LI><A NAME="toc7.4">7.4</A> <A HREF="i4lfaq-7.html#ss7.4">trouble_strategy: My isdn4linux doesn't work! How do I best go about finding the problem? </A> <LI><A NAME="toc7.5">7.5</A> <A HREF="i4lfaq-7.html#ss7.5">trouble_boot: How can I tell whether my ISDN card has been correctly recognized? </A> <LI><A NAME="toc7.6">7.6</A> <A HREF="i4lfaq-7.html#ss7.6">trouble_isdncause: I get an error message like "cause: E1234" (or similar)? </A> <LI><A NAME="toc7.7">7.7</A> <A HREF="i4lfaq-7.html#ss7.7">trouble_e001b: I get an error message with "cause: E001B"? </A> <LI><A NAME="toc7.8">7.8</A> <A HREF="i4lfaq-7.html#ss7.8">trouble_noprotocol: upon startup of HiSax I get the message "Warning - no protocol specified"? </A> <LI><A NAME="toc7.9">7.9</A> <A HREF="i4lfaq-7.html#ss7.9">trouble_euronotsupported: upon startup of HiSax I get the error "kernel hisax: protocol euro not supported"? </A> <LI><A NAME="toc7.10">7.10</A> <A HREF="i4lfaq-7.html#ss7.10">trouble_unknownprimitive: upon connection attempt I get the error "lldata_handler unknown primitive"? </A> <LI><A NAME="toc7.11">7.11</A> <A HREF="i4lfaq-7.html#ss7.11">trouble_notelrings: Neither my telephone nor my fax machine ring when I call them with isdn4linux? </A> <LI><A NAME="toc7.12">7.12</A> <A HREF="i4lfaq-7.html#ss7.12">trouble_guestaccess: Are there sites that offer guest access where I can test my isdn4linux setup? </A> <LI><A NAME="toc7.13">7.13</A> <A HREF="i4lfaq-7.html#ss7.13">trouble_unload: I can't unload my ISDN modules ("isdn: Device or resource busy"), even so I closed all ISDN applications? </A> <LI><A NAME="toc7.14">7.14</A> <A HREF="i4lfaq-7.html#ss7.14">trouble_tcpdump: Why does my tcpdump not work for ip packets going over ISDN ("truncated ip" or so)? How can I get a tcpdump patched for ISDN? </A> <LI><A NAME="toc7.15">7.15</A> <A HREF="i4lfaq-7.html#ss7.15">trouble_locatecrash: My isdn driver crashes my machine! Since I've configured it as a module, the addresses change each time it's loaded. How can I find out where the driver is crashing? </A> <LI><A NAME="toc7.16">7.16</A> <A HREF="i4lfaq-7.html#ss7.16">trouble_lotsdebug: My hard disk becomes very active when isdn4linux run. How can I turn this off? </A> <LI><A NAME="toc7.17">7.17</A> <A HREF="i4lfaq-7.html#ss7.17">trouble_oldhardware: Maybe my hardware is too slow? </A> <LI><A NAME="toc7.18">7.18</A> <A HREF="i4lfaq-7.html#ss7.18">trouble_outofbuffers: I get messages like "HSCX RME out of buffers", "HSCX RFP out of buffers", "HSCX B EXIR 10" in the syslog? </A> <LI><A NAME="toc7.19">7.19</A> <A HREF="i4lfaq-7.html#ss7.19">trouble_noresetinit: After a soft reset, my card does not initialize correctly. </A> <LI><A NAME="toc7.20">7.20</A> <A HREF="i4lfaq-7.html#ss7.20">trouble_noisdnctrl: When attempting to use isdnctrl, I get the error "/dev/isdnctrl: No such file or directory"? </A> <LI><A NAME="toc7.21">7.21</A> <A HREF="i4lfaq-7.html#ss7.21">trouble_noisdnctrl2: When attempting to use isdnctrl, I get the error "/dev/isdnctrl: No such device"? </A> <LI><A NAME="toc7.22">7.22</A> <A HREF="i4lfaq-7.html#ss7.22">trouble_xosview: xosview doesn't show any network activity since installing i4l. </A> <LI><A NAME="toc7.23">7.23</A> <A HREF="i4lfaq-7.html#ss7.23">trouble_unknownhost: When I for example from a W95 box call up a page with Netscape, I only get the answer "unknown host". </A> <LI><A NAME="toc7.24">7.24</A> <A HREF="i4lfaq-7.html#ss7.24">trouble_noroute: Addresses are now found, but now I get "no route to host". </A> <LI><A NAME="toc7.25">7.25</A> <A HREF="i4lfaq-7.html#ss7.25">trouble_nolocalnet: After booting, my local network can no longer be reached. I use the network interface ippp0 with ifconfig 0.0.0.0; the default route points to ippp0. </A> <LI><A NAME="toc7.26">7.26</A> <A HREF="i4lfaq-7.html#ss7.26">trouble_unauthorizedcodechange: When HiSax starts, I get the error messages 'Approval certification failed, unauthorized source code changes'? </A> <LI><A NAME="toc7.27">7.27</A> <A HREF="i4lfaq-7.html#ss7.27">trouble_crcerror: How can I see the number of packets for HiSax with invalid CRC? </A> </UL> <P> <H2><A NAME="toc8">8.</A> <A HREF="i4lfaq-8.html">msn: Configuration/MSNs </A></H2> <UL> <LI><A NAME="toc8.1">8.1</A> <A HREF="i4lfaq-8.html#ss8.1">msn_my1: What is my MSN? What if I don't have any? </A> <LI><A NAME="toc8.2">8.2</A> <A HREF="i4lfaq-8.html#ss8.2">msn_my2: How can I find out how my telephone number is transmitted to the calling party? </A> <LI><A NAME="toc8.3">8.3</A> <A HREF="i4lfaq-8.html#ss8.3">msn_config: How do I configure my MSN? </A> <LI><A NAME="toc8.4">8.4</A> <A HREF="i4lfaq-8.html#ss8.4">msn_max: How many MSNs as a maximum can I use for an isdn card? </A> <LI><A NAME="toc8.5">8.5</A> <A HREF="i4lfaq-8.html#ss8.5">msn_mindialin: How can I minimize usage of MSNs for digital data dialin? </A> <LI><A NAME="toc8.6">8.6</A> <A HREF="i4lfaq-8.html#ss8.6">msn_onlyone: How can I use one MSN for everything? </A> <LI><A NAME="toc8.7">8.7</A> <A HREF="i4lfaq-8.html#ss8.7">msn_buendel: Can I have several NTBAs, all with the same MSN? </A> </UL> <P> <H2><A NAME="toc9">9.</A> <A HREF="i4lfaq-9.html">lan: ISDN4LINUX in a LAN </A></H2> <UL> <LI><A NAME="toc9.1">9.1</A> <A HREF="i4lfaq-9.html#ss9.1">lan_config: How can I set up Linux so that other computers in my LAN can access the internet via my Linux computer? </A> <LI><A NAME="toc9.2">9.2</A> <A HREF="i4lfaq-9.html#ss9.2">lan_modemserver: How can I allow the users in my LAN to dial out via the ISDN card(s) in my Linux PC (like a modem server)? </A> </UL> <P> <H2><A NAME="toc10">10.</A> <A HREF="i4lfaq-10.html">dialout: Configuration of Dial-Out </A></H2> <UL> <LI><A NAME="toc10.1">10.1</A> <A HREF="i4lfaq-10.html#ss10.1">dialout_config: How do I configure dialout properly? </A> <LI><A NAME="toc10.2">10.2</A> <A HREF="i4lfaq-10.html#ss10.2">dialout_dialmode: When an IP packet should go over the link (which usually triggers a dialout), all I see in the log is: "dial rejected: interface not in dialmode <CODE>auto</CODE>"? </A> <LI><A NAME="toc10.3">10.3</A> <A HREF="i4lfaq-10.html#ss10.3">dialout_advanced: What special dialout features are available? </A> <LI><A NAME="toc10.4">10.4</A> <A HREF="i4lfaq-10.html#ss10.4">dialout_permission: How can I allow a normal user to initiate dialouts? </A> <LI><A NAME="toc10.5">10.5</A> <A HREF="i4lfaq-10.html#ss10.5">dialout_manycards: How do I configure dialout with more than 1 ISDN card? </A> <LI><A NAME="toc10.6">10.6</A> <A HREF="i4lfaq-10.html#ss10.6">dialout_fixedchannel: How can I force HiSax to always dial out on a specific B channel? </A> <LI><A NAME="toc10.7">10.7</A> <A HREF="i4lfaq-10.html#ss10.7">dialout_dynip: On dynamic ip assignment, how do I find out which ip address is being used for dialout? </A> <LI><A NAME="toc10.8">10.8</A> <A HREF="i4lfaq-10.html#ss10.8">dialout_bind: A dns query causes bind to dial out. Why does it take about a minute before it is answered? How do I work around it? </A> </UL> <P> <H2><A NAME="toc11">11.</A> <A HREF="i4lfaq-11.html">pap: Authenticate properly (especially with PAP) </A></H2> <UL> <LI><A NAME="toc11.1">11.1</A> <A HREF="i4lfaq-11.html#ss11.1">pap_optionauth: When dialing out, I get the message "pppd: peer authentication required but no authentication files accessible." What does this mean? </A> <LI><A NAME="toc11.2">11.2</A> <A HREF="i4lfaq-11.html#ss11.2">pap_requestauth: I cannot establish a connection - it's rejected by the other side. In the log file I find a message that's something like: "sent (0) (LCP ConfReq id=0x1 mru 1500 auth pap magic 0xcd12e9c4" </A> <LI><A NAME="toc11.3">11.3</A> <A HREF="i4lfaq-11.html#ss11.3">pap_rejectauth: I cannot establish a connection - it's rejected by the other side. In the log file I find a message that's something like: "sent (0) (LCP ConfRej id=0x1 auth pap" </A> <LI><A NAME="toc11.4">11.4</A> <A HREF="i4lfaq-11.html#ss11.4">pap_checkpwd: How can I check which password is actually sent to the remote side? </A> <LI><A NAME="toc11.5">11.5</A> <A HREF="i4lfaq-11.html#ss11.5">pap_passwd: I have problems with PAP or CHAP authentication. It does not work although I'm sure I entered passwords etc. correctly. </A> </UL> <P> <H2><A NAME="toc12">12.</A> <A HREF="i4lfaq-12.html">syncppp: Sync PPP </A></H2> <UL> <LI><A NAME="toc12.1">12.1</A> <A HREF="i4lfaq-12.html#ss12.1">syncppp_whichppp: pppd, ipppd, syncPPP, asyncPPP .. what is they? Which should I use? </A> <LI><A NAME="toc12.2">12.2</A> <A HREF="i4lfaq-12.html#ss12.2">syncppp_compile: How do I compile isdn4linux with syncPPP? </A> <LI><A NAME="toc12.3">12.3</A> <A HREF="i4lfaq-12.html#ss12.3">syncppp_netinterface: How should I name my network interface? </A> <LI><A NAME="toc12.4">12.4</A> <A HREF="i4lfaq-12.html#ss12.4">syncppp_config: How do I configure isdn4linux with syncPPP? </A> <LI><A NAME="toc12.5">12.5</A> <A HREF="i4lfaq-12.html#ss12.5">syncppp_busy: How can I tell if a connection is unsuccessful (busy)? </A> <LI><A NAME="toc12.6">12.6</A> <A HREF="i4lfaq-12.html#ss12.6">syncppp_logindelay: How can I reduce login delay? </A> <LI><A NAME="toc12.7">12.7</A> <A HREF="i4lfaq-12.html#ss12.7">syncppp_2configs: I want to talk to remote machines which needs different configurations. The only way I found to do this is to kill the ipppd and start a new one with another config to connect to the second machine. </A> <LI><A NAME="toc12.8">12.8</A> <A HREF="i4lfaq-12.html#ss12.8">syncppp_pppbind: How does the (little-documented) "pppbind" command in isdnctrl work? </A> <LI><A NAME="toc12.9">12.9</A> <A HREF="i4lfaq-12.html#ss12.9">syncppp_dynip: I want to use dynamic IP address assignment. How must I configure the network device? </A> <LI><A NAME="toc12.10">12.10</A> <A HREF="i4lfaq-12.html#ss12.10">syncppp_msgetdns: How do I configure ipppd to obtain or provide the nameserver address at dial in? </A> <LI><A NAME="toc12.11">12.11</A> <A HREF="i4lfaq-12.html#ss12.11">syncppp_ipx: How can I do IPX over ipppd? </A> <LI><A NAME="toc12.12">12.12</A> <A HREF="i4lfaq-12.html#ss12.12">syncppp_faster: How can I increase my PPP data transfer rates? </A> <LI><A NAME="toc12.13">12.13</A> <A HREF="i4lfaq-12.html#ss12.13">syncppp_compression: Which compressions can I use with ipppd? </A> <LI><A NAME="toc12.14">12.14</A> <A HREF="i4lfaq-12.html#ss12.14">syncppp_strategy: I can't get a connect. How can I find out where the problem is? </A> <LI><A NAME="toc12.15">12.15</A> <A HREF="i4lfaq-12.html#ss12.15">syncppp_log: How can I get a log for ipppd? </A> <LI><A NAME="toc12.16">12.16</A> <A HREF="i4lfaq-12.html#ss12.16">syncppp_nopppsupport: Starting ipppd I get the error message "this systems lacks ppp support" or "isdn driver is out of date. maybe ippp0 has no syncppp0 encapsulation". </A> <LI><A NAME="toc12.17">12.17</A> <A HREF="i4lfaq-12.html#ss12.17">syncppp_nousabledevice: When I try to start ipppd it says "Can't find usable ippp device" </A> <LI><A NAME="toc12.18">12.18</A> <A HREF="i4lfaq-12.html#ss12.18">syncppp_starterror: When I start ipppd, I only get error messages from the i4l driver. </A> <LI><A NAME="toc12.19">12.19</A> <A HREF="i4lfaq-12.html#ss12.19">syncppp_framesdelayed: I get the message <CODE>IP frames delayed</CODE> - but no connection. </A> <LI><A NAME="toc12.20">12.20</A> <A HREF="i4lfaq-12.html#ss12.20">syncppp_noroute: I cannot dial out with <CODE>isdnctrl dial ippp0</CODE>. It seems as if the route to ipppd is missing although I <B>did</B> set it (<CODE>network unreachable</CODE>). With my old kernel 2.0 everything works fine! </A> <LI><A NAME="toc12.21">12.21</A> <A HREF="i4lfaq-12.html#ss12.21">syncppp_nodefaultroute: After ipppd dials out my default route is gone. </A> <LI><A NAME="toc12.22">12.22</A> <A HREF="i4lfaq-12.html#ss12.22">syncppp_packettoolarge: I often get the error message <CODE>hscx_empty_fifo: incoming packet too large</CODE> </A> <LI><A NAME="toc12.23">12.23</A> <A HREF="i4lfaq-12.html#ss12.23">syncppp_slow: The connection with ipppd seems to work, but eventually it crashes or is very slow. </A> <LI><A NAME="toc12.24">12.24</A> <A HREF="i4lfaq-12.html#ss12.24">syncppp_loadproblem: I only have problems with ipppd when the connection is being heavily burdened. Then everything stops. What could be causing this? </A> <LI><A NAME="toc12.25">12.25</A> <A HREF="i4lfaq-12.html#ss12.25">syncppp_mtu: My ipppd works, but I keep getting the message pppd(104): ioctl(SIOCSIFMTU): Invalid argument"? </A> <LI><A NAME="toc12.26">12.26</A> <A HREF="i4lfaq-12.html#ss12.26">syncppp_1stpacket: The first IP packet gets lost on automatic dialout with dynamic IP address allocation. </A> <LI><A NAME="toc12.27">12.27</A> <A HREF="i4lfaq-12.html#ss12.27">syncppp_droppacket: What does the message "No phone number, packet dropped" mean? </A> <LI><A NAME="toc12.28">12.28</A> <A HREF="i4lfaq-12.html#ss12.28">syncppp_leadingzero: Why does my ipppd dial one too many zeros (<CODE>"ippp0: dialing 0 089XXXXXX..."</CODE>)? I don't have any extensions! </A> <LI><A NAME="toc12.29">12.29</A> <A HREF="i4lfaq-12.html#ss12.29">syncppp_ethfake: My ISDN device is shown with HWaddr and IRQ=0 and base address = 0 when I list it with ifconfig </A> <LI><A NAME="toc12.30">12.30</A> <A HREF="i4lfaq-12.html#ss12.30">syncppp_lzsproblem: I get an error message like <CODE>kernel check for lzs failed</CODE>? </A> </UL> <P> <H2><A NAME="toc13">13.</A> <A HREF="i4lfaq-13.html">asyncppp: Configuration Async PPP </A></H2> <UL> <LI><A NAME="toc13.1">13.1</A> <A HREF="i4lfaq-13.html#ss13.1">asyncppp_whichppp: pppd, ipppd, async PPP, sync PPP - what are they? Which should I use? </A> <LI><A NAME="toc13.2">13.2</A> <A HREF="i4lfaq-13.html#ss13.2">asyncppp_config: How do I configure async PPP? </A> <LI><A NAME="toc13.3">13.3</A> <A HREF="i4lfaq-13.html#ss13.3">asyncppp_logindelay: How can I reduce login delay? </A> <LI><A NAME="toc13.4">13.4</A> <A HREF="i4lfaq-13.html#ss13.4">asyncppp_fast: How can I increase my transfer rates with PPP? </A> <LI><A NAME="toc13.5">13.5</A> <A HREF="i4lfaq-13.html#ss13.5">asyncppp_log: How can I get a log for pppd? </A> <LI><A NAME="toc13.6">13.6</A> <A HREF="i4lfaq-13.html#ss13.6">asyncppp_suddendeath: Establishing the connection works fine, but pppd crashes just after that (i.e. the first bytes gets through, but then everything stops) </A> </UL> <P> <H2><A NAME="toc14">14.</A> <A HREF="i4lfaq-14.html">rawip: Raw IP </A></H2> <UL> <LI><A NAME="toc14.1">14.1</A> <A HREF="i4lfaq-14.html#ss14.1">rawip_whatis: What is Raw IP, when should I use it? </A> </UL> <P> <H2><A NAME="toc15">15.</A> <A HREF="i4lfaq-15.html">ttyI: Configuration of the ttyI* devices (`Modem emulation') </A></H2> <UL> <LI><A NAME="toc15.1">15.1</A> <A HREF="i4lfaq-15.html#ss15.1">ttyI_nomodem: Don't the ttyI* devices emulate an analog modem? </A> <LI><A NAME="toc15.2">15.2</A> <A HREF="i4lfaq-15.html#ss15.2">ttyI_dev: Which devices should I use for calls out or calls in? </A> <LI><A NAME="toc15.3">15.3</A> <A HREF="i4lfaq-15.html#ss15.3">ttyI_hdlc: How to I switch the modem emulation from X.75 to HDLC? </A> <LI><A NAME="toc15.4">15.4</A> <A HREF="i4lfaq-15.html#ss15.4">ttyI_uucp: How can I poll with Taylor-UUCP using isdn4linux? </A> <LI><A NAME="toc15.5">15.5</A> <A HREF="i4lfaq-15.html#ss15.5">ttyI_speed: What speed should I set for the ttyI* devices? </A> <LI><A NAME="toc15.6">15.6</A> <A HREF="i4lfaq-15.html#ss15.6">ttyI_max: How many devices are the maximum supported number? </A> <LI><A NAME="toc15.7">15.7</A> <A HREF="i4lfaq-15.html#ss15.7">ttyI_nocarrier: When I dial with "ATD....." I always get a "NO CARRIER". </A> <LI><A NAME="toc15.8">15.8</A> <A HREF="i4lfaq-15.html#ss15.8">ttyI_noincall: My ttyI* device/pppd does not recognize an incoming call. </A> <LI><A NAME="toc15.9">15.9</A> <A HREF="i4lfaq-15.html#ss15.9">ttyI_callphone: Why can't I dial my telephone or fax from the ttyI* devices? </A> <LI><A NAME="toc15.10">15.10</A> <A HREF="i4lfaq-15.html#ss15.10">ttyI_noconnect: I can't get a connection to my ISDN mailbox/BBS. </A> <LI><A NAME="toc15.11">15.11</A> <A HREF="i4lfaq-15.html#ss15.11">ttyI_forcehangup: My modem emulation hangs. How can I force my card to hang up? </A> <LI><A NAME="toc15.12">15.12</A> <A HREF="i4lfaq-15.html#ss15.12">ttyI_channelclosed: During a tty connection, I get a message from the kernel: "teles_writebuf: channel not open". Then no more input is accepted for this connection. </A> <LI><A NAME="toc15.13">15.13</A> <A HREF="i4lfaq-15.html#ss15.13">ttyI_uucp: When I use UUCP with X.75, I always get transfer errors! </A> </UL> <P> <H2><A NAME="toc16">16.</A> <A HREF="i4lfaq-16.html">dod: Unwanted dialout on demand </A></H2> <UL> <LI><A NAME="toc16.1">16.1</A> <A HREF="i4lfaq-16.html#ss16.1">dod_how: How does dialout on demand work? </A> <LI><A NAME="toc16.2">16.2</A> <A HREF="i4lfaq-16.html#ss16.2">dod_disaster: What is a charge unit disaster? </A> <LI><A NAME="toc16.3">16.3</A> <A HREF="i4lfaq-16.html#ss16.3">dod_causes: What can cause a charge unit disaster? </A> <LI><A NAME="toc16.4">16.4</A> <A HREF="i4lfaq-16.html#ss16.4">dod_off: How can I safely turn off dialout on demand? </A> <LI><A NAME="toc16.5">16.5</A> <A HREF="i4lfaq-16.html#ss16.5">dod_strategy: How can I track down unexplainable dialouts? </A> <LI><A NAME="toc16.6">16.6</A> <A HREF="i4lfaq-16.html#ss16.6">dod_winclient: Can it be that the Win95 machine on my LAN is causing automatic dialouts? </A> <LI><A NAME="toc16.7">16.7</A> <A HREF="i4lfaq-16.html#ss16.7">dod_localdns: I have set up a local DNS name server. Why does it cause unwanted dialouts? How can I find the cause? </A> <LI><A NAME="toc16.8">16.8</A> <A HREF="i4lfaq-16.html#ss16.8">dod_forwarddns: I have set up my name server in 'forward' mode, with one forward address. Now it dials out about every minute? </A> <LI><A NAME="toc16.9">16.9</A> <A HREF="i4lfaq-16.html#ss16.9">dod_sendmail: How can I get sendmail to not initiate any connections without local mail being left undelivered? </A> <LI><A NAME="toc16.10">16.10</A> <A HREF="i4lfaq-16.html#ss16.10">dod_samba: The samba package always triggers dialouts for me. How can I prevent this? </A> <LI><A NAME="toc16.11">16.11</A> <A HREF="i4lfaq-16.html#ss16.11">dod_netscape: How can I get Netscape to quit initiating dialouts when starting? </A> <LI><A NAME="toc16.12">16.12</A> <A HREF="i4lfaq-16.html#ss16.12">dod_rstprovoking: Why should I use the RST-provoking mode/patch? </A> <LI><A NAME="toc16.13">16.13</A> <A HREF="i4lfaq-16.html#ss16.13">dod_closeipconnect: After closing the line, I discover with <CODE>netstat -nt</CODE> that IP connections are still open. How can I close these manually? </A> <LI><A NAME="toc16.14">16.14</A> <A HREF="i4lfaq-16.html#ss16.14">dod_onlineoncrash: Is it possible that even with a crashed computer a ISDN connection remains open (and the charge units accumulate)? </A> </UL> <P> <H2><A NAME="toc17">17.</A> <A HREF="i4lfaq-17.html">chargeint: Chargeint </A></H2> <UL> <LI><A NAME="toc17.1">17.1</A> <A HREF="i4lfaq-17.html#ss17.1">chargeint_whatis: What does Chargeint? </A> <LI><A NAME="toc17.2">17.2</A> <A HREF="i4lfaq-17.html#ss17.2">chargeint_config: How should I configure Chargeint? </A> <LI><A NAME="toc17.3">17.3</A> <A HREF="i4lfaq-17.html#ss17.3">chargeint_whennot: When does it <B>not</B> make sense to use the chargeint? </A> <LI><A NAME="toc17.4">17.4</A> <A HREF="i4lfaq-17.html#ss17.4">chargeint_correcttime: How can I be sure that the chargeint patch is using the correct time? </A> <LI><A NAME="toc17.5">17.5</A> <A HREF="i4lfaq-17.html#ss17.5">chargeint_nohangup: The connection doesn't end with timeout. </A> </UL> <P> <H2><A NAME="toc18">18.</A> <A HREF="i4lfaq-18.html">2channel: Channel bundling (MPPP, raw bundling) </A></H2> <UL> <LI><A NAME="toc18.1">18.1</A> <A HREF="i4lfaq-18.html#ss18.1">2channel_whatis: What is channel bundling and how can I use it? </A> <LI><A NAME="toc18.2">18.2</A> <A HREF="i4lfaq-18.html#ss18.2">2channel_raw: What is raw bundling? </A> <LI><A NAME="toc18.3">18.3</A> <A HREF="i4lfaq-18.html#ss18.3">2channel_rawconfig: How do I configure raw bundling? </A> <LI><A NAME="toc18.4">18.4</A> <A HREF="i4lfaq-18.html#ss18.4">2channel_rawgoodbad: What are the advantages and disadvantages of raw bundling? </A> <LI><A NAME="toc18.5">18.5</A> <A HREF="i4lfaq-18.html#ss18.5">2channel_mppp: What is MPPP? </A> <LI><A NAME="toc18.6">18.6</A> <A HREF="i4lfaq-18.html#ss18.6">2channel_mpppgoodbad: What are the advantages and disadvantages of MPPP? </A> <LI><A NAME="toc18.7">18.7</A> <A HREF="i4lfaq-18.html#ss18.7">2channel_mpppconfig: How do I configure MPPP? </A> <LI><A NAME="toc18.8">18.8</A> <A HREF="i4lfaq-18.html#ss18.8">2channel_mpppcompile: I tried MPPP but it doesn't work. The ipppd writes in the debug log something like: " ... rcvd (0)(proto=0x3d) c0 00 00 00 80 fd 01 01 00 0a ... sent (0)(LCP ProtRej id=0x2 00 3d c0 00 00 00 80 fd 01 ..." </A> <LI><A NAME="toc18.9">18.9</A> <A HREF="i4lfaq-18.html#ss18.9">2channel_cantlocateippp1: When trying to use MPPP I get the error message "modprobe: Can't locate module ippp1" and "ipppd: ioctl(SIOCSIFMTU): No such device..."? </A> </UL> <P> <H2><A NAME="toc19">19.</A> <A HREF="i4lfaq-19.html">remote: Pecularities of the remote ISDN device </A></H2> <UL> <LI><A NAME="toc19.1">19.1</A> <A HREF="i4lfaq-19.html#ss19.1">remote_win95: How do I configure Windows95 to dial successfully into my isdn4linux computer? </A> <LI><A NAME="toc19.2">19.2</A> <A HREF="i4lfaq-19.html#ss19.2">remote_mac: I'd like to exchange data with a Macintosh (Leonardo card), what do I or the Mac user have to watch out for? </A> <LI><A NAME="toc19.3">19.3</A> <A HREF="i4lfaq-19.html#ss19.3">remote_macpap: A Macintosh with a Leonardo card tries to call in, and wants to negotiate chap md5. How can I switch it to CHAP/PAP? </A> <LI><A NAME="toc19.4">19.4</A> <A HREF="i4lfaq-19.html#ss19.4">remote_cisco: How does isdn4linux work with a Cisco (HDLC) on the other side? </A> <LI><A NAME="toc19.5">19.5</A> <A HREF="i4lfaq-19.html#ss19.5">remote_ispa: What settings does ISPA etc. (DOS, Windows) need to work with the standard settings of isdn4linux? </A> </UL> <P> <H2><A NAME="toc20">20.</A> <A HREF="i4lfaq-20.html">leased: Leased lines </A></H2> <UL> <LI><A NAME="toc20.1">20.1</A> <A HREF="i4lfaq-20.html#ss20.1">leased_flatrate: What's the difference between a leased line and a flat rate? </A> <LI><A NAME="toc20.2">20.2</A> <A HREF="i4lfaq-20.html#ss20.2">leased_nosignal: How does establishing and ending a connection work with D64S without signaling? </A> <LI><A NAME="toc20.3">20.3</A> <A HREF="i4lfaq-20.html#ss20.3">leased_hisaxconfig: With i4l, how do I configure my card on a D64 leased line? </A> <LI><A NAME="toc20.4">20.4</A> <A HREF="i4lfaq-20.html#ss20.4">leased_x75: How do I configure X.75 on a D64 leased line? </A> <LI><A NAME="toc20.5">20.5</A> <A HREF="i4lfaq-20.html#ss20.5">leased_splitline: With i4l, can I use one channel as a leased line and the other as a dialup line? </A> </UL> <P> <H2><A NAME="toc21">21.</A> <A HREF="i4lfaq-21.html">dialin: Configuration of a Dial-In Server </A></H2> <UL> <LI><A NAME="toc21.1">21.1</A> <A HREF="i4lfaq-21.html#ss21.1">dialin_config: How can I enable others to login via ISDN? </A> <LI><A NAME="toc21.2">21.2</A> <A HREF="i4lfaq-21.html#ss21.2">dialin_manyparallel: How can I allow several people to call in to me at the same time? </A> <LI><A NAME="toc21.3">21.3</A> <A HREF="i4lfaq-21.html#ss21.3">dialin_analogditalsamettyi: Can I configure a ttyI* device to accept both digital and analog modem dialins? </A> <LI><A NAME="toc21.4">21.4</A> <A HREF="i4lfaq-21.html#ss21.4">dialin_fixedip: How can I assign fixed ip addresses per user who dials in via ipppd? </A> <LI><A NAME="toc21.5">21.5</A> <A HREF="i4lfaq-21.html#ss21.5">dialin_hdlc: Someone would like to dial in to my mgetty with HDLC. Is ttyI1 correct, or do I have to start with ttyI0? </A> <LI><A NAME="toc21.6">21.6</A> <A HREF="i4lfaq-21.html#ss21.6">dialin_autoppp: Is it possible with mgetty to automatically start pppd when LCP frames are received? </A> <LI><A NAME="toc21.7">21.7</A> <A HREF="i4lfaq-21.html#ss21.7">dialin_passwd: How can I have (i)pppd check passwords from /etc/passwd instead of /etc/ppp/pap-secrets when someone dials in? </A> <LI><A NAME="toc21.8">21.8</A> <A HREF="i4lfaq-21.html#ss21.8">dialin_ignored: I keep getting the message "isdn_tty: call from XXX - YYY ignored". Why does isdn4linux (syncPPP) ignore this dialin attempt? </A> <LI><A NAME="toc21.9">21.9</A> <A HREF="i4lfaq-21.html#ss21.9">dialin_async: A SunISDN tries to dial into my i4l system. </A> </UL> <P> <H2><A NAME="toc22">22.</A> <A HREF="i4lfaq-22.html">callback: Callback </A></H2> <UL> <LI><A NAME="toc22.1">22.1</A> <A HREF="i4lfaq-22.html#ss22.1">callback_delay: An incoming call is rejected by i4l. i4l then calls back. The reject is not recognized by the other side which keeps on dialing to i4l. </A> <LI><A NAME="toc22.2">22.2</A> <A HREF="i4lfaq-22.html#ss22.2">callback_cisco: Somehow i4l can not callback a Cisco? </A> <LI><A NAME="toc22.3">22.3</A> <A HREF="i4lfaq-22.html#ss22.3">callback_ascend: Callback from an Ascend works only when I set "Active=Yes" in the Ascend menu; but then the Ascend keeps calling me, even when my machine is off. </A> <LI><A NAME="toc22.4">22.4</A> <A HREF="i4lfaq-22.html#ss22.4">callback_banzai: How can I callback a Banzai!? </A> <LI><A NAME="toc22.5">22.5</A> <A HREF="i4lfaq-22.html#ss22.5">callback_microsoft: Does isdn4linux support Microsoft Callback (CBCP)? </A> </UL> <P> <H2><A NAME="toc23">23.</A> <A HREF="i4lfaq-23.html">isdnlog: Isdnlog </A></H2> <UL> <LI><A NAME="toc23.1">23.1</A> <A HREF="i4lfaq-23.html#ss23.1">isdnlog_rates: Where do I get the latest rate information? </A> <LI><A NAME="toc23.2">23.2</A> <A HREF="i4lfaq-23.html#ss23.2">isdnlog_servicetype: Can I see the service type from an incoming call in the output from isdnrep? </A> <LI><A NAME="toc23.3">23.3</A> <A HREF="i4lfaq-23.html#ss23.3">isdnlog_callerid1: Why don't I always receive from the German Telekom the number of a caller ("Caller ID")? </A> <LI><A NAME="toc23.4">23.4</A> <A HREF="i4lfaq-23.html#ss23.4">isdnlog_callerid2: Do I receive the Caller ID from foreign calls (German Telekom)? </A> <LI><A NAME="toc23.5">23.5</A> <A HREF="i4lfaq-23.html#ss23.5">isdnlog_spoofcallerid: I've heard that actually two Caller IDs are transmitted? </A> <LI><A NAME="toc23.6">23.6</A> <A HREF="i4lfaq-23.html#ss23.6">isdnlog_betterlogging: Why doesn't isdnlog record the number dialed by my other ISDN devices, since it records the charges? </A> <LI><A NAME="toc23.7">23.7</A> <A HREF="i4lfaq-23.html#ss23.7">isdnlog_reversedcard: How can I get isdnlog to also show the telephone numbers for other ISDN devices? </A> <LI><A NAME="toc23.8">23.8</A> <A HREF="i4lfaq-23.html#ss23.8">isdnlog_rategraphic: How can I display the data transfer rates graphically? </A> <LI><A NAME="toc23.9">23.9</A> <A HREF="i4lfaq-23.html#ss23.9">isdnlog_2callerid: Isdnlog (=2.52) shows for a caller <EM>two</EM> telephone numbers! Which one is correct? </A> <LI><A NAME="toc23.10">23.10</A> <A HREF="i4lfaq-23.html#ss23.10">isdnlog_soundbusy: I've set up a script to play sound per cat on /dev/sound or some other device. When several events occur, then there is an error: <CODE>Can't open output file '/dev/sound': Device or resource busy</CODE> </A> <LI><A NAME="toc23.11">23.11</A> <A HREF="i4lfaq-23.html#ss23.11">isdnlog_noshell: Isdnlog should call a program with redirected output (e.g. <CODE>play anruf.au 2/dev/null</CODE>). Why does ISDN tell me <CODE>Can't start '/usr/local/bin/play anruf.au 2/dev/null' with execvp()</CODE>? </A> <LI><A NAME="toc23.12">23.12</A> <A HREF="i4lfaq-23.html#ss23.12">isdnlog_blankscreen: When dialing out, the screen goes momentarily black? </A> </UL> <P> <H2><A NAME="toc24">24.</A> <A HREF="i4lfaq-24.html">audio: Handling Voice with ISDN </A></H2> <UL> <LI><A NAME="toc24.1">24.1</A> <A HREF="i4lfaq-24.html#ss24.1">audio_links: Where can I find helpful links regarding vbox? </A> <LI><A NAME="toc24.2">24.2</A> <A HREF="i4lfaq-24.html#ss24.2">audio_format: What is the format of the audio messages (.msg) vbox plays when it answers a call? </A> <LI><A NAME="toc24.3">24.3</A> <A HREF="i4lfaq-24.html#ss24.3">audio_recordmsg: How can I record my own messages for vboxgetty? </A> <LI><A NAME="toc24.4">24.4</A> <A HREF="i4lfaq-24.html#ss24.4">audio_play: How can I play audio messages locally using /dev/audio? </A> <LI><A NAME="toc24.5">24.5</A> <A HREF="i4lfaq-24.html#ss24.5">audio_convertto: How can I convert audio messages which where recorded by vbox to other formats (i.e. from uLaw to WAV)? </A> <LI><A NAME="toc24.6">24.6</A> <A HREF="i4lfaq-24.html#ss24.6">audio_convertfrom: How can I format WAV for uLaw (for my vbox announcement message)? </A> <LI><A NAME="toc24.7">24.7</A> <A HREF="i4lfaq-24.html#ss24.7">audio_dtmf: How can I improve the recognition of (DTMF) dial tones? </A> <LI><A NAME="toc24.8">24.8</A> <A HREF="i4lfaq-24.html#ss24.8">audio_e0265: My vboxgetty gets a modem timeout, and reports error E0265. </A> <LI><A NAME="toc24.9">24.9</A> <A HREF="i4lfaq-24.html#ss24.9">audio_noanswer: My vboxgetty does not answer any incoming calls. </A> <LI><A NAME="toc24.10">24.10</A> <A HREF="i4lfaq-24.html#ss24.10">audio_nocat: If vboxgetty has recorded a message in a format which can not be played using "cat xxx/dev/audio" how can I still hear the message? </A> <LI><A NAME="toc24.11">24.11</A> <A HREF="i4lfaq-24.html#ss24.11">audio_earlyrecording: At the beginning of a message recorded by vboxgetty, there's often a part of my own announcement? </A> </UL> <P> <H2><A NAME="toc25">25.</A> <A HREF="i4lfaq-25.html">Supported Countries</A></H2> <UL> <LI><A NAME="toc25.1">25.1</A> <A HREF="i4lfaq-25.html#ss25.1">country_which: In which countries does isdn4linux work? </A> <LI><A NAME="toc25.2">25.2</A> <A HREF="i4lfaq-25.html#ss25.2">country_certified: Is isdn4linux approved for use by the telecommunications authorities? </A> </UL> <P> <H2><A NAME="toc26">26.</A> <A HREF="i4lfaq-26.html">1tr6: German Pecularities for 1TR6 </A></H2> <UL> <LI><A NAME="toc26.1">26.1</A> <A HREF="i4lfaq-26.html#ss26.1">1tr6_eaz: Which EAZ should I use for i4l? </A> <LI><A NAME="toc26.2">26.2</A> <A HREF="i4lfaq-26.html#ss26.2">1tr6_extension: I use 1TR6 on an extension - the extension number has more than one digit (e.g. 206). What is my EAZ? </A> <LI><A NAME="toc26.3">26.3</A> <A HREF="i4lfaq-26.html#ss26.3">1tr6_spv: What is a SPV? </A> <LI><A NAME="toc26.4">26.4</A> <A HREF="i4lfaq-26.html#ss26.4">1tr6_spv: Does isdn4linux support SPVs? How? </A> </UL> <P> <H2><A NAME="toc27">27.</A> <A HREF="i4lfaq-27.html">Other countries</A></H2> <UL> <LI><A NAME="toc27.1">27.1</A> <A HREF="i4lfaq-27.html#ss27.1">country_austria: Austria: We have neither an MSN nor an EAZ, only a normal plain telephone number. What do we have to use for i4l? </A> <LI><A NAME="toc27.2">27.2</A> <A HREF="i4lfaq-27.html#ss27.2">country_brazil: Brazil: How does our MSN look like? </A> <LI><A NAME="toc27.3">27.3</A> <A HREF="i4lfaq-27.html#ss27.3">country_france: France: How does our MSN look like? </A> <LI><A NAME="toc27.4">27.4</A> <A HREF="i4lfaq-27.html#ss27.4">country_italy: Italy: What does our MSN look like? </A> <LI><A NAME="toc27.5">27.5</A> <A HREF="i4lfaq-27.html#ss27.5">country_netherlands: Netherlands: What does our MSN look like? </A> <LI><A NAME="toc27.6">27.6</A> <A HREF="i4lfaq-27.html#ss27.6">country_northamerica: North America: Can we use isdn4linux in North America? </A> <LI><A NAME="toc27.7">27.7</A> <A HREF="i4lfaq-27.html#ss27.7">country_pakistan: Pakistan: What should we use as MSN? </A> <LI><A NAME="toc27.8">27.8</A> <A HREF="i4lfaq-27.html#ss27.8">country_portugal: Portugal: What should we use as MSN? </A> <LI><A NAME="toc27.9">27.9</A> <A HREF="i4lfaq-27.html#ss27.9">country_switherland: Switzerland: We have neither an MSN nor an EAZ, just a plain telephone number. What do we have to use for i4l? </A> <LI><A NAME="toc27.10">27.10</A> <A HREF="i4lfaq-27.html#ss27.10">country_uk: UK: What should we use as MSN? </A> </UL> <P> <H2><A NAME="toc28">28.</A> <A HREF="i4lfaq-28.html">misc: Miscellaneous </A></H2> <UL> <LI><A NAME="toc28.1">28.1</A> <A HREF="i4lfaq-28.html#ss28.1">misc_standards: Which standards apply to the ISDN protocol layers? </A> <LI><A NAME="toc28.2">28.2</A> <A HREF="i4lfaq-28.html#ss28.2">misc_nonullcable: Can I connect two ISDN devices directly with a kind of "null modem cable"? </A> <LI><A NAME="toc28.3">28.3</A> <A HREF="i4lfaq-28.html#ss28.3">misc_uisdn: Can isdn4linux run in parallel to UISDN? </A> </UL> <P> <H2><A NAME="toc29">29.</A> <A HREF="i4lfaq-29.html">glossary: ISDN specific words which are used in this FAQ </A></H2> <HR> <A HREF="i4lfaq-1.html">Next</A> Previous Contents </BODY> </HTML>
