[asterisk-bugs] [JIRA] (PRI-153) Questions about BRI (B410P/Hx8) functionality

[Russ Meyerriecks (JIRA)]

     [ https://issues.asterisk.org/jira/browse/PRI-153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Russ Meyerriecks moved DAHDI-1001 to PRI-153:
---------------------------------------------

        Security: None  (was: Digium and Reporter)
    Architecture:   (was: i386)
        Workflow: Subtask and Courtesy Workflow  (was: Greenhopper Friendly Workflow)
             Key: PRI-153  (was: DAHDI-1001)
         Project: LibPRI  (was: DAHDI (Internal))
    
> Questions about BRI (B410P/Hx8) functionality
> ---------------------------------------------
>
>                 Key: PRI-153
>                 URL: https://issues.asterisk.org/jira/browse/PRI-153
>             Project: LibPRI
>          Issue Type: Bug
>      Security Level: None
>            Reporter: Trey Blancher
>            Assignee: Trey Blancher
>         Attachments: 20130109_095728350_00228630_case10.txt, jira_dahdi_1001_libpri_v1.4.patch
>
>
> This is a continuation of AST-598, but since these were more specific about BRI, I figured I'd put them here:
> {quote}
> We supposed the case 00228630 is closed, but we get new information to reopen it. 
> We had the opportunity to make intensive tests again, and we experimented problems. 
> SITUATION 
> We are using the following version: 
> * Asterisk 1.8.15.0 
> * libpri version: SVN-branch-1.4-r2295 
> * DAHDI Version: 2.5.1 Echo Canceller: HWEC, OSLEC 
> The card used is a B410P : 04:01.0 ISDN controller: Digium, Inc. Wildcard B410 quad-BRI card (rev 01) 
> The hardware used, including the BRI lines, are working perfectly with asterisk 1.6 branch and old libPri. 
> DAHDI configuration: 
> # Span 2: B4/0/1 "B4XXP (PCI) Card 0 Span 1" AMI/CCS 
> span=2,1,0,ccs,ami 
> # termtype: te 
> bchan=5-6 
> hardhdlc=7 
> echocanceller=oslec,5-6 
> Asterisk configuration: 
> ;; Span 2: B4/0/1 "B4XXP (PCI) Card 0 Span 1" AMI/CCS 
> signalling=bri_cpe_ptmp 
> callerid=asreceived 
> group=5 
> context=trunk_5_0 
> language=fr 
> ;; layer2_persistence=keep_up 
> ;; layer1_presence=ignore 
> channel => 5-6 
> QUESTIONS 
> 1. - Why is the layer2_persistence option not useful? We can used the system for many hours (with or without calls) without layer2_persistence option. Last year we understood it was necessary to keep layer 2 up when the Telco set it down (every 30sec). Now the D-chan seems to be maintained up by Asterisk, even if this option is not used. 
> Could you explain why ? 
> 2. - Sometimes (twice a week), during an inactivity period, one of the D-chan goes DOWN. It remains down until an incoming call occurs. This call is rejected and then the D-chan goes UP. Of course, during this period, outgoing calls failed through this span. You will find attached to this mail the logs of this problem: the problem occurs at 13h52 and disappears at 14h13. This problem prevent us to upgrade our clients to 1.8 version. 
> Could you find a solution ? 
> 3. - Does the B410P card has a particular problem? Would everything works fine with an Hx8 series card? 
> {quote}

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