Hi, On a Asterisk 1.8.12 system working OK for months (>100k calls proceed), users are complaining for bad audio.
My setup is: PSTN <--E1/PRI ---> Asterisk <--- E1/PRI---> Siemens HiPath <---E1/PRI ---> PSTN asterisk -rx "dahdi show version" DAHDI Version: SVN-trunk-r10414 Echo Canceller: HWEC asterisk -rx "pri show version" libpri version: 1.4.12 A quick glance at Asterisk logs shows lines like this: [2014-01-09 17:19:34] NOTICE[26034]: chan_dahdi.c:3099 my_handle_dchan_exception: PRI got event: HDLC Abort (6) on D-channel of span 1 [2014-01-09 17:19:35] NOTICE[26035]: chan_dahdi.c:3099 my_handle_dchan_exception: PRI got event: HDLC Abort (6) on D-channel of span 2 [2014-01-09 17:19:49] NOTICE[26035]: chan_dahdi.c:3099 my_handle_dchan_exception: PRI got event: HDLC Abort (6) on D-channel of span 2 I read an old thread inviting an admin to check for shared IRQs and timing slips. My questions are: 1. cat /proc/interrupts 's output is: # cat /proc/interrupts CPU0 CPU1 CPU2 CPU3 CPU4 CPU5 CPU6 CPU7 0: 90147 0 0 0 0 0 0 0 IO-APIC-edge timer 1: 2 0 0 0 0 0 0 0 IO-APIC-edge i8042 8: 0 0 1 0 0 0 0 0 IO-APIC-edge rtc0 9: 0 0 0 0 0 0 0 0 IO-APIC-fasteoi acpi 12: 4 0 0 0 0 0 0 0 IO-APIC-edge i8042 14: 93 0 0 0 0 0 0 0 IO-APIC-edge ata_piix 15: 0 0 0 0 0 0 0 0 IO-APIC-edge ata_piix 16: 3378646209 3378695076 3378691115 3378697362 3378691116 3378706831 3378710635 3378702358 IO-APIC-fasteoi wct2xxp Can I positively conclude that my Dahdi PRI board IS NOT sharing IRQ (which is good) ? 2. What would you suggest reading the following output ? cat /proc/dahdi/2 Span 2: TE2/0/2 "T2XXP (PCI) Card 0 Span 2" (MASTER) HDB3/CCS Timing slips: 175319 32 TE2/0/2/1 Clear (In use) (EC: VPMOCT064 - INACTIVE) 33 TE2/0/2/2 Clear (In use) (EC: VPMOCT064 - INACTIVE) 34 TE2/0/2/3 Clear (In use) (EC: VPMOCT064 - INACTIVE) 35 TE2/0/2/4 Clear (In use) (EC: VPMOCT064 - INACTIVE) 36 TE2/0/2/5 Clear (In use) (EC: VPMOCT064 - INACTIVE) 37 TE2/0/2/6 Clear (In use) (EC: VPMOCT064 - INACTIVE) 38 TE2/0/2/7 Clear (In use) (EC: VPMOCT064 - INACTIVE) 39 TE2/0/2/8 Clear (In use) (EC: VPMOCT064 - INACTIVE) 40 TE2/0/2/9 Clear (In use) (EC: VPMOCT064 - INACTIVE) 41 TE2/0/2/10 Clear (In use) (EC: VPMOCT064 - INACTIVE) 42 TE2/0/2/11 Clear (In use) (EC: VPMOCT064 - INACTIVE) 43 TE2/0/2/12 Clear (In use) (EC: VPMOCT064 - INACTIVE) 44 TE2/0/2/13 Clear (In use) (EC: VPMOCT064 - INACTIVE) 45 TE2/0/2/14 Clear (In use) (EC: VPMOCT064 - INACTIVE) 46 TE2/0/2/15 Clear (In use) (EC: VPMOCT064 - INACTIVE) 47 TE2/0/2/16 HDLCFCS (In use) (EC: VPMOCT064 - INACTIVE) 48 TE2/0/2/17 Clear (In use) (EC: VPMOCT064 - INACTIVE) 49 TE2/0/2/18 Clear (In use) (EC: VPMOCT064 - INACTIVE) 50 TE2/0/2/19 Clear (In use) (EC: VPMOCT064 - INACTIVE) 51 TE2/0/2/20 Clear (In use) (EC: VPMOCT064 - INACTIVE) 52 TE2/0/2/21 Clear (In use) (EC: VPMOCT064 - INACTIVE) 53 TE2/0/2/22 Clear (In use) (EC: VPMOCT064 - INACTIVE) 54 TE2/0/2/23 Clear (In use) (EC: VPMOCT064 - INACTIVE) 55 TE2/0/2/24 Clear (In use) (EC: VPMOCT064 - INACTIVE) 56 TE2/0/2/25 Clear (In use) (EC: VPMOCT064 - INACTIVE) 57 TE2/0/2/26 Clear (In use) (EC: VPMOCT064 - INACTIVE) 58 TE2/0/2/27 Clear (In use) (EC: VPMOCT064 - INACTIVE) 59 TE2/0/2/28 Clear (In use) (EC: VPMOCT064 - INACTIVE) 60 TE2/0/2/29 Clear (In use) (EC: VPMOCT064 - INACTIVE) 61 TE2/0/2/30 Clear (In use) (EC: VPMOCT064 - INACTIVE) 62 TE2/0/2/31 Clear (In use) (EC: VPMOCT064 - INACTIVE) 3. As shown above, my box has two connections with PSTN (same provider for both): one direct, one through an HiPath PBX. How can I double check timing slips don't come from "inconsistency between both clock sources" ? My first thought would be to unplug the link between Asterisk and HiPath and compare two /pro/dahddi/1 outputs. Thoughts ? Regards
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