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<p class=MsoNormal>Hi,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span lang=EN-US>i am facing problems with incoming calls on
a MGCP PRI Gateway. Some of the incoming calls get disconnected with cause
code: Cause i = 0x80AC - Requested circuit/channel not available. I noticed
that this happens only on one specific port and B-Channel.<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Sample output of debug isdn q931:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Apr 29 14:45:25.870 cest: ISDN Se0/0/1:15
Q931: RX <- SETUP pd = 8 callref = 0x0071 <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Sending
Complete <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Bearer
Capability i = 0x8090A3 <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Standard
= CCITT <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Transfer
Capability = Speech <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Transfer
Mode = Circuit <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Transfer
Rate = 64 kbit/s <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Channel
ID i = 0xA9838E <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Exclusive,
Channel 14 <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Calling
Party Number i = 0x2183, '160XXXXXXX' <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Plan:ISDN,
Type:National <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Called
Party Number i = 0xC1, '25XXXXXX' <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Plan:ISDN,
Type:Subscriber(local) <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> High
Layer Compat i = 0x9181<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Apr 29 14:45:25.870 cest: ISDN Se0/0/1:15
Q931: TX -> RELEASE_COMP pd = 8 callref = 0x8071 <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US> Cause
i = 0x80AC - Requested circuit/channel not available<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>At nearly the same time I see the following
output in CCM Trace:<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|In Message -- PriEuroSetupMsg --
Protocol=
PriEuroProtocol|<CLID::StandAloneCluster><NID::10.236.3.51><LVL::Significant><MASK::0040>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|Ie - Ni2BearerCapabilityIe -- IEData=
04 03 80 90 A3
|<CLID::StandAloneCluster><NID::10.236.3.51><LVL::State
Transition><MASK::0040>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|Ie - Q931ChannelIdIe -- IEData= 18 03
A9 83 8E |<CLID::StandAloneCluster><NID::10.236.3.51><LVL::State
Transition><MASK::0040>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|Ie - Q931CallingPartyIe -- IEData= 6C
0C 21 83 31 36 30 3X 3X 3X 3X 3X 3X 3X |<CLID::StandAloneCluster><NID::10.236.3.51><LVL::State
Transition><MASK::0040>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|Ie - Q931CalledPartyIe -- IEData= 70 09
C1 32 35 3X 3X 3X 3X 3X 3X
|<CLID::StandAloneCluster><NID::10.236.3.51><LVL::State
Transition><MASK::0040>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|Ie - Q931HighLayerCompatibilityIe --
IEData= 7D 02 91 81
|<CLID::StandAloneCluster><NID::10.236.3.51><LVL::State
Transition><MASK::0040>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|MMan_Id= 0. (iep= 0 dsl= 8001 sapi=
0 ces= 0 IpAddr=403ec0a
IpPort=2427)|<CLID::StandAloneCluster><NID::10.236.3.51><LVL::State
Transition><MASK::0040>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|IsdnMsgData1= 08 02 00 71 05 A1 04 03
80 90 A3 18 03 A9 83 8E 6C 0C 21 83 31 36 30 38 34 39 33 32 36 31 70 09 C1 32
35 35 30 31 34 30 31 7D 02 91 81
|<CLID::StandAloneCluster><NID::10.236.3.51><LVL::State
Transition><MASK::0040>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|MGCPpn9d - S0/SU0/DS1-1@ostbogw01.XXXXXXXXX.local
- Collision Detected On PriEuro Interface callphase=
9|<CLID::StandAloneCluster><NID::10.236.3.51><CT::2,100,133,1.358133><IP::10.236.3.4><DEV::><LVL::State
Transition><MASK::2000>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|Entering default,restarting
channel|<CLID::StandAloneCluster><NID::10.236.3.51><CT::2,100,133,1.358133><IP::10.236.3.4><DEV::><LVL::State
Transition><MASK::2000>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|MGCPpn9d::conflictingChannelHandler -
Don't Restart this channel since it is marked OOS_NE under service
parameter:S0/SU0/DS1-1@ostbogw01. XXXXXXXXX.local=00000000000000000000000000000000
or due to MGCP gateway hardware
failure|<CLID::StandAloneCluster><NID::10.236.3.51><CT::2,100,133,1.358133><IP::10.236.3.4><DEV::><LVL::State
Transition><MASK::2000><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|
|<CLID::StandAloneCluster><NID::10.236.3.51><LVL::State
Transition><MASK::0040>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>CCM|Out Message -- PriReleaseCompleteMsg --
Protocol=
PriEuroProtocol|<CLID::StandAloneCluster><NID::10.236.3.51><LVL::Significant><MASK::0040>
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>I checked the above mentioned CCM Service
Parameter and It is not checked. <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Does anybody know how to track down the
root cause of this issue? <o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Callmanager is running 7.0.2-20000-5<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US>Gateway is running 12.4(22)T4
<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p>
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