<HTML>
<style> BODY { font-family:Arial, Helvetica, sans-serif;font-size:12px; }</style>Hi Harry,<br>
<br>
Yes it seems that you are not having any interrupt issues.<br>
I think the issue can be something related to Hard HDLC or Soft HDLC and then about the PRI refresh intervals.<br>
Also are you using a split PRI ? like few channels for DATA and few for Voice on single E1 circuit ?<br>
<br>
If you need more fix that probably need to look into this box over SSH to do further diagnosis, you can connect me off the list to pass on those info,<br>
<br>
Thanks & Regards,
<br>
Mitul Limbani,
<br>
Founder & CEO,
<br>
Enterux Solutions,
<br>
The Enterprise Linux Company (TM),
<br>
www.enterux.com
<br>
+91-9820332422 <br>
<br>
<span style="font-weight: bold;">On Thu 02/04/09 10:37 , Harry McGregor hmcgregor@biggeeks.org sent:<br>
</span><blockquote style="border-left: 2px solid rgb(245, 245, 245); margin-left: 5px; margin-right: 0px; padding-left: 5px; padding-right: 0px;">Hi Mitul,<br>
<br>
Mitul Limbani wrote:<br>
<span style="color: rgb(102, 102, 102);">> Hi harry,</span><br>
<span style="color: rgb(102, 102, 102);">></span><br>
<span style="color: rgb(102, 102, 102);">> Over the past 1+ year I have encountered similar issue as u saying, </span><br>
<span style="color: rgb(102, 102, 102);">> bad HDLC and the line resets dropping all the calls on the line.</span><br>
<span style="color: rgb(102, 102, 102);">></span><br>
<span style="color: rgb(102, 102, 102);">> After diagnosis of each different case I got the following reasons:</span><br>
<span style="color: rgb(102, 102, 102);">></span><br>
<span style="color: rgb(102, 102, 102);">> 1) the card is conflicting with some other resource on the pc, 90% </span><br>
<span style="color: rgb(102, 102, 102);">> time it conflicts with either the USB controller or Ethernet </span><br>
<span style="color: rgb(102, 102, 102);">> controller, try disabling these hardware or try different PCI slots or </span><br>
<span style="color: rgb(102, 102, 102);">> in some cases I have tried entirely different PC and the line drop </span><br>
<span style="color: rgb(102, 102, 102);">> issue disappeared.</span><br>
<span style="color: rgb(102, 102, 102);">></span><br>
<span style="color: rgb(102, 102, 102);">> Cat /proc/interupts</span><br>
<span style="color: rgb(102, 102, 102);">> </span><br>
<br>
Well, unless I am reading this wrong, we don't have any IRQ sharing:<br>
<br>
<a href="mailto:hmcgregor@rppbx">hmcgregor@rppbx</a>:~$ cat /proc/interrupts<br>
CPU0 CPU1 <br>
0: 34 1 IO-APIC-edge timer<br>
1: 294 2955 IO-APIC-edge i8042<br>
6: 0 3 IO-APIC-edge floppy<br>
7: 1 0 IO-APIC-edge parport0<br>
8: 0 1 IO-APIC-edge rtc0<br>
9: 0 0 IO-APIC-fasteoi acpi<br>
12: 19 318 IO-APIC-edge i8042<br>
14: 1 87 IO-APIC-edge ide0<br>
18: 194114861 481832830 IO-APIC-fasteoi wanpipe1<br>
19: 86761424 251172881 IO-APIC-fasteoi wanpipe2<br>
20: 841032 9434148 IO-APIC-fasteoi sata_nv<br>
22: 1 117 IO-APIC-fasteoi ehci_hcd:usb2, HDA Intel<br>
23: 408202 4839750 IO-APIC-fasteoi ohci_hcd:usb1, sata_nv<br>
1276: 3077018 47863500 PCI-MSI-edge eth0<br>
NMI: 0 0 Non-maskable interrupts<br>
LOC: 13557666 16509579 Local timer interrupts<br>
RES: 20741331 8566946 Rescheduling interrupts<br>
CAL: 1755 297 function call interrupts<br>
TLB: 210532 232038 TLB shootdowns<br>
TRM: 0 0 Thermal event interrupts<br>
THR: 0 0 Threshold APIC interrupts<br>
SPU: 0 0 Spurious interrupts<br>
ERR: 1<br>
<br>
<br>
I think you are not having any interrupts issues.<br>
<br>
<span style="color: rgb(102, 102, 102);">> 2) Use Xorcom's AstriBank although it is bit exp and doesnt have </span><br>
<span style="color: rgb(102, 102, 102);">> onboard echo cancellation v/s PCI cards but you dont have worry about </span><br>
<span style="color: rgb(102, 102, 102);">> PCI slots n stuff anymore, no line drop due to HDLC has been reported </span><br>
<span style="color: rgb(102, 102, 102);">> by any of my customers using the Xorcom hardware.</span><br>
<span style="color: rgb(102, 102, 102);">> </span><br>
<br>
That may be an option....<br>
<span style="color: rgb(102, 102, 102);">> 3) If you did 1 and still facing issue raise a support ticket with </span><br>
<span style="color: rgb(102, 102, 102);">> Sangoma they would definitely fix or provide cure</span><br>
<span style="color: rgb(102, 102, 102);">> </span><br>
<br>
Ok<br>
<span style="color: rgb(102, 102, 102);">> 4) based on 1 and 3 you can go back to telco and get them to layout </span><br>
<span style="color: rgb(102, 102, 102);">> the Fibre once again from their junction box, coz then your line is </span><br>
<span style="color: rgb(102, 102, 102);">> failing due to physical disturbance in line, and this is something </span><br>
<span style="color: rgb(102, 102, 102);">> which the tester unit is capable to withstand, but not asterisk. So </span><br>
<span style="color: rgb(102, 102, 102);">> although they show you line perfectly ok on their tester units it </span><br>
<span style="color: rgb(102, 102, 102);">> would fail after unpredictable time delay on asterisk.(make sure you </span><br>
<span style="color: rgb(102, 102, 102);">> fix 1 and 3 before doing this or else you loose reputation in front of </span><br>
<span style="color: rgb(102, 102, 102);">> customer and telco both)</span><br>
<span style="color: rgb(102, 102, 102);">></span><br>
<span style="color: rgb(102, 102, 102);">> </span><br>
The telco has not even been running a T-Bird, just a loop test on the<br>
smart jack and their CPE equipment.<br>
<br>
Since it's an integral access type setup, there is the incoming telco T1<br>
into the Telco's CPE equipment, which then hands over ethernet for<br>
internet access, pots for our fax lines, and fractinal PRI for our<br>
digital voice trunks.<br>
<br>
It's quite possible that most, but not all of our issues are on that<br>
fractional PRI, and not the incoming T1.<br>
<br>
Harry<br>
<span style="color: rgb(102, 102, 102);">> Let me know,</span><br>
<span style="color: rgb(102, 102, 102);">></span><br>
<span style="color: rgb(102, 102, 102);">> Regards,</span><br>
<span style="color: rgb(102, 102, 102);">> Mitul Limbani,</span><br>
<span style="color: rgb(102, 102, 102);">> Founder & CEO,</span><br>
<span style="color: rgb(102, 102, 102);">> Enterux Solutions Pvt Ltd,</span><br>
<span style="color: rgb(102, 102, 102);">> The Enterprise Linux Company(r),</span><br>
<span style="color: rgb(102, 102, 102);">> <a target="_blank" href="http://www.enterux.com/"><span style="color: red;">http://www.enterux.com/</span></a></span><br>
<span style="color: rgb(102, 102, 102);">></span><br>
<span style="color: rgb(102, 102, 102);">></span><br>
<span style="color: rgb(102, 102, 102);">> On 02-Apr-09, at 7:21, Harry McGregor <<a href="mailto:hmcgregor@biggeeks.org">hmcgregor@biggeeks.org</a>> wrote:</span><br>
<span style="color: rgb(102, 102, 102);">></span><br>
<span style="color: rgb(102, 102, 102);">> </span><br>
<span style="color: rgb(102, 102, 102);">>> Hi,</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> We are having some issues with dropped calls on our combined voice/ </span><br>
<span style="color: rgb(102, 102, 102);">>> data</span><br>
<span style="color: rgb(102, 102, 102);">>> T1 (ISDN PRI hand over of the voice channels).</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> Our users are reporting frequent (3-10/day for an 8 person office)</span><br>
<span style="color: rgb(102, 102, 102);">>> dropped calls, including calls with the other party being on a land </span><br>
<span style="color: rgb(102, 102, 102);">>> line.</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> The telco keeps coming back that the line is clean.</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> Anyone here have solid experience in reading through D-Channel </span><br>
<span style="color: rgb(102, 102, 102);">>> traces to</span><br>
<span style="color: rgb(102, 102, 102);">>> figure out what is going on exactly, enough that we can either fix our</span><br>
<span style="color: rgb(102, 102, 102);">>> Asterisk issue or push the telco for a fix.</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> Most of the issues started when we switched from doing our own analog</span><br>
<span style="color: rgb(102, 102, 102);">>> split out for fax (Sangoma T1 card, Sangoma Analog), to having our </span><br>
<span style="color: rgb(102, 102, 102);">>> telco</span><br>
<span style="color: rgb(102, 102, 102);">>> split out the fax lines.</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> We had issues with fax reliability on the sangoma pair (even though it</span><br>
<span style="color: rgb(102, 102, 102);">>> had worked well for us in the past with other installs), and </span><br>
<span style="color: rgb(102, 102, 102);">>> switched to</span><br>
<span style="color: rgb(102, 102, 102);">>> telco analog hand over for fax (which permitted the Windows SBS fax</span><br>
<span style="color: rgb(102, 102, 102);">>> server to work, though we are getting a lot of cut off faxes).</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> Environment is Asterisk 1.4.21 on Debian Lenny Kernel 2.6.26</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> 01:06.0 Network controller: Sangoma Technologies Corp. A101 single- </span><br>
<span style="color: rgb(102, 102, 102);">>> port</span><br>
<span style="color: rgb(102, 102, 102);">>> T1/E1 (rev 01)</span><br>
<span style="color: rgb(102, 102, 102);">>> 01:07.0 Network controller: Sangoma Technologies Corp. A200/Remora</span><br>
<span style="color: rgb(102, 102, 102);">>> FXO/FXS Analog AFT card</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> -----</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> We really need to get to the bottom of this fax issue. We can provide</span><br>
<span style="color: rgb(102, 102, 102);">>> logs, and we can provide supervised (screen),bastion host based SSH</span><br>
<span style="color: rgb(102, 102, 102);">>> access to the asterisk system.</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> I would like to keep the cost down of course, but can offer between </span><br>
<span style="color: rgb(102, 102, 102);">>> $150</span><br>
<span style="color: rgb(102, 102, 102);">>> (looking at the logs, giving suggestions), up to $500 (if you can </span><br>
<span style="color: rgb(102, 102, 102);">>> truly</span><br>
<span style="color: rgb(102, 102, 102);">>> solve the issue, and our users are happy).</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> Harry</span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> _______________________________________________</span><br>
<span style="color: rgb(102, 102, 102);">>> --Bandwidth and Colocation Provided by <a target="_blank" href="http://www.api-digital.com--"><span style="color: red;">http://www.api-digital.com--</span></a></span><br>
<span style="color: rgb(102, 102, 102);">>></span><br>
<span style="color: rgb(102, 102, 102);">>> asterisk-biz mailing list</span><br>
<span style="color: rgb(102, 102, 102);">>> To UNSUBSCRIBE or update options visit:</span><br>
<span style="color: rgb(102, 102, 102);">>> <a target="_blank" href="http://lists.digium.com/mailman/listinfo/asterisk-biz"><span style="color: red;">http://lists.digium.com/mailman/listinfo/asterisk-biz</span></a></span><br>
<span style="color: rgb(102, 102, 102);">>> </span><br>
<span style="color: rgb(102, 102, 102);">></span><br>
<span style="color: rgb(102, 102, 102);">> _______________________________________________</span><br>
<span style="color: rgb(102, 102, 102);">> --Bandwidth and Colocation Provided by <a target="_blank" href="http://www.api-digital.com--"><span style="color: red;">http://www.api-digital.com--</span></a></span><br>
<span style="color: rgb(102, 102, 102);">></span><br>
<span style="color: rgb(102, 102, 102);">> asterisk-biz mailing list</span><br>
<span style="color: rgb(102, 102, 102);">> To UNSUBSCRIBE or update options visit:</span><br>
<span style="color: rgb(102, 102, 102);">> <a target="_blank" href="http://lists.digium.com/mailman/listinfo/asterisk-biz"><span style="color: red;">http://lists.digium.com/mailman/listinfo/asterisk-biz</span></a></span><br>
<span style="color: rgb(102, 102, 102);">></span><br>
<span style="color: rgb(102, 102, 102);">> </span><br>
<br>
<br>
_______________________________________________<br>
--Bandwidth and Colocation Provided by <a target="_blank" href="http://www.api-digital.com--"><span style="color: red;">http://www.api-digital.com--</span></a><br>
<br>
asterisk-biz mailing list<br>
To UNSUBSCRIBE or update options visit:<br>
<a target="_blank" href="http://lists.digium.com/mailman/listinfo/asterisk-biz"><span style="color: red;">http://lists.digium.com/mailman/listinfo/asterisk-biz</span></a><br>
<br>
</blockquote><BR><hr>Msg sent via Enterux Enterprise Email Server : http://www.enterux.com/</HTML>