When I had this problem I contacted digium who sent me instructions on how to setup the span and make a loopback plug. I then left it running for a while but no errors were reported.
The telco then started monitoring the line and after a couple of days diagnosed a faulty card in the local exchange. Chetan Meshram wrote: > > I did restart the zaptel after making changes.. but just to reconfirm I > restarted it again.. > but the problem still persists. > > > On Mon, 19 Jul 2010 16:43:57 +0100, Gareth Blades > <[email protected]> wrote: >> Have you restarted zaptel since making any changes? >> You are receiving FCS errors but you dont appear to have crc4 specified >> in your span lines. >> >> If you have removed the option but not restarted zaptel yet then do that > >> to see if it fixes the problem. >> >> Chetan Meshram wrote: >>> Hi All, >>> >>> I am facing problem with E1 line. I have installed Asterisk >>> (1.4.20.1) on a system with Digium TE420 card (Zaptel- 1.4.10) >>> >>> But every now and then I face problem of down E1's. The log >>> show lot of entries like >>> >>> "pri_dchannel: PRI got event: HDLC Bad FCS (8) on >>> Primary D-channel of span 2" >>> >>> This happens on a regular basis and the E1 becomes up after > some >>> time. >>> >>> My zaptel.conf is as follows: >>> >>> >>> >>> # Span 1: TE4/0/1 "T4XXP (PCI) Card 0 Span 1" (MASTER) >>> span=1,1,0,ccs,hdb3 >>> # termtype: te >>> bchan=1-15,17-31 >>> hardhdlc=16 >>> >>> # Span 2: TE4/0/2 "T4XXP (PCI) Card 0 Span 2" >>> span=2,2,0,ccs,hdb3 >>> # termtype: te >>> bchan=32-46,48-62 >>> hardhdlc=47 >>> >>> # Span 3: TE4/0/3 "T4XXP (PCI) Card 0 Span 3" >>> span=3,3,0,ccs,hdb3 >>> # termtype: te >>> bchan=63-77,79-93 >>> hardhdlc=78 >>> >>> # Span 4: TE4/0/4 "T4XXP (PCI) Card 0 Span 4" >>> span=4,4,0,ccs,hdb3 >>> # termtype: te >>> bchan=94-108,110-124 >>> hardhdlc=109 >>> >>> # Global data >>> >>> loadzone = us >>> defaultzone = us >>> >>> >>> >>> Any advice what could be the problem..? >>> >>> Thanks in advance ! >>> >>> -Chetan Meshram >>> >> >> -- >> _____________________________________________________________________ >> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> New to Asterisk? Join us for a live introductory webinar every Thurs: >> http://www.asterisk.org/hello >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users > > > -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
