Mike, thanks so much.. here are the results - unfortunately, not even a new build on a new system is solving this issue.
* See my notes to the tests below. I ended up trying 3 computers, the last being a Dell 1600 server with a fresh install following the AMP instructions at http://amp.coalescentsystems.ca/docs/AMP_Installation_Guide_v1.1.pdf. >Joe Presto wrote: >> Hi, Im running into issues receiving faxes which, from what I have >> read, may be caused by frame slips. While I can find many posts saying >> to investigate it, I cant find any that describe **how** to debug the >> problem. Tried searching this list as well to no avail. >> >Joe Hi, > >Boot the Linux Rescue disk and run memtest86. * tested OK >Boot Linux but don't go into XWindows. * no xwin on system >If you're running software RAID, 'cat /proc/mdstat'. If it's syncing a >drive then wait till it's done. * no raid >Check 'cat /proc/interrupts' for modules sharing the same interrupt >vector. Even an unused USB module, when shared with a Digium module, >will cause havoc. If you can, you may 'modprobe -r <name>' the shared >module. If you can't, try moving the Digium card to different PCI slots >ion order to find an unshared interrupt vector. You can also try >assigning irq numbers in BIOS. * no interrupts being shared >Check 'vmstat 1'. With a "quiet" system you should see mostly 100% idle >time. How many interrupts are you seeing per one second interval? It >should be +/- 1000 for the system timer and +/- 1000 for each Digium card.> * confirmed.. about 1100 interrupts per sec >If you're seeing a lot of activity on vmstat then turn-off unneeded >services. >Pick-up the handset and listen carefully to the dial tone. It should be >pure MF tones. If you hear any clicks, pops, or strangeness you know >you have a problem. Listen to both the TDM card dialtone as well as the >channel bank dialtone (if you have one). * sounds fine. Gsm audio plays fine. I'm seeing some issues with mp3 music on hold, but I have a feeling it is my files. >If you have two FXS lines with fax machines, fax a document directly >from one to the other. Don't even start with spandsp until this works >c>onsistently. If you have both TDM and T-1 then fax TDM->TDM, TDM->CB, >CB->TDM, and CB->CB. * I don't have this, but I do have one FXS and one FXO, so I was able to have an external fax go through * to a fax machine. Worked perfectly. >After you RxFax a document, open the received .tiff file a tiff viewer >or your browser (I use Mozilla). Verify the file contents. >Use TxFax to send the file back to the fax machine. Did it print correctly? >When fax->fax works correctly, try spandsp. > >If you still have problems: > >If you're on a channel bank (or PSTN circuit) then look at your T-1 >timing. In the US you should have something like 'span=1,1,0,esf,b8zs' >in zaptel.conf where the T-1 card is taking its timing from the received >data stream. The channel bank should be configured to generate its own >timing. > * t400p not channel bank >If you have IDE drives, try 'hdparm /dev/hdx'. If 32-bit support is 0 >then try 'hdparm -c1 /dev/hdx' and 'hdparm -c3 /dev/hdx'. If using_dma >is 0 then try 'hdparm -d1 /dev/hdx'. I configured a RAMDISK to >eliminate the possibility of disk I/O interfering with spandsp. * ran with scsi - n/a >Try 'lspci -v' and look at the latency timer for your Digium card(s). >You can set it higher with 'setpci -v -s xx:yy.0 LATENCY=TIMER=ff' (xx >is the bus number and yy is the slot). * tried, with no effect >Look at the vmstat output and check for system (not user) spikes every >three seconds. If you have spikes then 'modprobe -r wcfxs'--if no more >spikes then get a T-1 card and channel bank and try it there. * here's sample output: procs memory swap io system cpu r b swpd free buff cache si so bi bo in cs us sy wa id 4 0 0 56020 12224 137968 0 0 0 0 1114 173 0 0 0 100 0 0 0 56020 12224 137968 0 0 0 0 1113 181 0 0 0 100 0 0 0 56020 12224 137968 0 0 0 0 1115 175 0 0 0 100 0 0 0 56020 12232 137968 0 0 0 20 1117 184 0 0 2 98 0 0 0 56020 12232 137968 0 0 0 0 1114 172 0 0 0 100 0 0 0 56020 12232 137968 0 0 0 0 1113 170 0 0 0 100 0 0 0 56020 12232 137968 0 0 0 0 1115 173 0 0 0 100 0 0 0 56020 12232 137968 0 0 0 0 1113 175 0 0 0 100 0 0 0 56020 12240 137968 0 0 0 16 1117 179 0 0 2 98 1 0 0 56020 12240 137968 0 0 0 0 1113 174 0 0 0 100 4 0 0 56020 12240 137968 0 0 0 0 1115 170 0 0 0 100 14 0 0 56020 12240 137968 0 0 0 0 1114 164 0 0 0 100 0 0 0 56020 12240 137968 0 0 0 0 1114 175 0 0 0 100 0 0 0 56020 12248 137968 0 0 0 20 1116 180 0 0 1 99 0 0 0 56020 12248 137968 0 0 0 0 1114 170 0 0 0 100 there appears to be a tiny spike every 5 secs or so. I can't stop wcfxs without stopping asterisk. The spikes stop after stopping asterisk/AMP. Following is a log of my fax session.. perhaps there is something I'm missing? Dec 28 01:46:08 DEBUG[1046]: Manager received command 'Command' Dec 28 01:46:18 DEBUG[1046]: Manager received command 'Command' Dec 28 01:46:18 VERBOSE[1046]: -- Starting simple switch on 'Zap/4-1' Dec 28 01:46:24 NOTICE[1046]: Got event 2 (Ring/Answered)... Dec 28 01:46:24 VERBOSE[1046]: -- Executing ESC[1;36;40mAnswerESC[0;37;40m( "ESC[1;35;40mZap/4-1ESC[0;37;40m", "ESC[1;35;40mESC[0;37;40m") in new stack Dec 28 01:46:24 DEBUG[1046]: Took Zap/4-1 off hook Dec 28 01:46:24 DEBUG[1046]: Enabled echo cancellation on channel 4 Dec 28 01:46:24 DEBUG[1046]: Engaged echo training on channel 4 Dec 28 01:46:24 VERBOSE[1046]: -- Executing ESC[1;36;40mBackGroundESC[0;37; 40m("ESC[1;35;40mZap/4-1ESC[0;37;40m", "ESC[1;35;40mdg-welcome-to-dgESC[0;37;40 m") in new stack Dec 28 01:46:24 DEBUG[1046]: Scheduling timer at 160 sample intervals Dec 28 01:46:24 VERBOSE[1046]: -- Playing 'dg-welcome-to-dg' (language 'en' ) Dec 28 01:46:27 DEBUG[1046]: DTMF digit: f on Zap/4-1 Dec 28 01:46:27 VERBOSE[1046]: -- Redirecting Zap/4-1 to fax extension Dec 28 01:46:27 DEBUG[1046]: Scheduling timer at 0 sample intervals Dec 28 01:46:27 VERBOSE[1046]: == Spawn extension (from-pstn, fax, 0) exited non-zero on 'Zap/4-1' Dec 28 01:46:27 VERBOSE[1046]: -- Executing ESC[1;36;40mRxFAXESC[0;37;40m(" ESC[1;35;40mZap/4-1ESC[0;37;40m", "ESC[1;35;40m/var/spool/asterisk/fax/123.tif ESC[0;37;40m") in new stack Dec 28 01:46:28 DEBUG[1046]: Manager received command 'Command' Dec 28 01:46:38 DEBUG[1046]: Manager received command 'Command' Dec 28 01:46:46 DEBUG[1046]: ================================================== ============================ Dec 28 01:46:46 DEBUG[1046]: Pages transferred: 1 Dec 28 01:46:46 DEBUG[1046]: Image size: 1728 x 109 Dec 28 01:46:46 DEBUG[1046]: Image resolution 7700 x 3850 Dec 28 01:46:46 DEBUG[1046]: Transfer Rate: 9600 Dec 28 01:46:46 DEBUG[1046]: Bad rows 12 Dec 28 01:46:46 DEBUG[1046]: Longest bad row run 5 Dec 28 01:46:46 DEBUG[1046]: Compression type 2 Dec 28 01:46:46 DEBUG[1046]: Image size (bytes) 0 Dec 28 01:46:46 DEBUG[1046]: ================================================== ============================ Dec 28 01:46:48 DEBUG[1046]: Manager received command 'Command' Dec 28 01:46:58 DEBUG[1046]: Manager received command 'Command' Dec 28 01:47:05 DEBUG[1046]: ================================================== ============================ Dec 28 01:47:05 DEBUG[1046]: Pages transferred: 2 Dec 28 01:47:05 DEBUG[1046]: Image size: 1728 x 138 Dec 28 01:47:05 DEBUG[1046]: Image resolution 7700 x 3850 Dec 28 01:47:05 DEBUG[1046]: Transfer Rate: 9600 Dec 28 01:47:05 DEBUG[1046]: Bad rows 19 Dec 28 01:47:05 DEBUG[1046]: Longest bad row run 8 Dec 28 01:47:05 DEBUG[1046]: Compression type 2 Dec 28 01:47:05 DEBUG[1046]: Image size (bytes) 0 Dec 28 01:47:05 DEBUG[1046]: ================================================== ============================ Dec 28 01:47:08 DEBUG[1046]: Manager received command 'Command' Dec 28 01:47:08 DEBUG[1046]: ================================================== ============================ Dec 28 01:47:08 DEBUG[1046]: Fax successfully received. Dec 28 01:47:08 DEBUG[1046]: Remote station id: Sent via MaxEmail Dec 28 01:47:08 DEBUG[1046]: Local station id: Dec 28 01:47:08 DEBUG[1046]: Pages transferred: 2 Dec 28 01:47:08 DEBUG[1046]: Image resolution: 7700 x 3850 Dec 28 01:47:08 DEBUG[1046]: Transfer Rate: 9600 Dec 28 01:47:08 DEBUG[1046]: ================================================== ============================ Dec 28 01:47:09 DEBUG[1046]: Exception on 21, channel 4 Dec 28 01:47:09 DEBUG[1046]: Got event On hook(1) on channel 4 (index 0) Dec 28 01:47:09 DEBUG[1046]: disabled echo cancellation on channel 4 Dec 28 01:47:09 DEBUG[1046]: cdr_mysql: inserting a CDR record. Dec 28 01:47:09 DEBUG[1046]: cdr_mysql: SQL command as follows: INSERT INTO cd r (calldate,clid,src,dst,dcontext,channel,dstchannel,lastapp,lastdata,duration , billsec,disposition,amaflags,accountcode) VALUES ('2004-12-28 01:46:24','','',' s','from-pstn', 'Zap/4-1','','RxFAX','/var/spool/asterisk/fax/123.tif',45,45,'A NSWERED',3,'') Dec 28 01:47:09 DEBUG[1046]: Hangup: channel: 4 index = 0, normal = 21, callwai t = -1, thirdcall = -1 Dec 28 01:47:09 DEBUG[1046]: disabled echo cancellation on channel 4 Dec 28 01:47:09 DEBUG[1046]: Set option TDD MODE, value: OFF(0) on Zap/4-1 Dec 28 01:47:09 DEBUG[1046]: Updated conferencing on 4, with 0 conference users Dec 28 01:47:09 VERBOSE[1046]: -- Hungup 'Zap/4-1' Thanks again - joe _______________________________________________ Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
