[asterisk-bugs] [JIRA] (PRI-162) MDL-ERROR (A) for over 90 concurrent calls with 4E1 card

[james.zhu (JIRA)]

james.zhu created PRI-162:
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             Summary: MDL-ERROR (A) for over 90 concurrent calls with 4E1 card 
                 Key: PRI-162
                 URL: https://issues.asterisk.org/jira/browse/PRI-162
             Project: LibPRI
          Issue Type: Bug
      Security Level: None
          Components: General
    Affects Versions: 1.4.13
         Environment: dell r720 xeon 16g, centos 5.9, asterisk 1.8.22, dahdi 2.6.1, libpri 1.4.14 Sangoma 104DE and Digium 4E1 card
            Reporter: james.zhu
            Assignee: Richard Mudgett


hello:
my customer installs asterisk for call center, using AMI to make concurrent calls for 90 calls, the system comes out the MDL error. the error sometime change from MDL(A) or (F). 
I try the libpri-1.4.10 and below,the  problem is same. I use sangoma A104DE or digium 4E1 card, the problem still there. I think it should not be a hardware issues. I replace with chan_ss7, the calls can over 110 without any problem. I think something in libpri still related with this bug: https://issues.asterisk.org/jira/browse/PRI-149

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