The issue is on the other side. The other side of the trunk is not sending the OLC and OLCAck, causing a media timeout on this cluster where the call is made from.
\2014-04-21_11-07-25\cm\trace\ccm\sdi\ccm00000203.txt.gz
>> digit analysis for the number called.
12:06:09.970 |Digit analysis: match(pi="2", fqcn="1199", cn="1199",plv="5", ... dd="8222",dac="0")|1,100,56,1.3759697^10.100.4.55^SEPE84040A31567
12:06:09.970 |StationD: (0000753) DialedNumber dialedNumber=8222 lineInstance=1 callReference=19418084.|1,100,56,1.3759697^10.100.4.55^SEPE84040A31567
>> setup is sent to the other side.
12:06:10.100 |H225Cdpc::handleCcSetupReq(153, 19418085): H225Setup sent to IP=192.168.106.10|1,100,56,1.3759697^10.100.4.55^SEPE84040A31567
12:06:10.101 |SPROCRas - {
h323-uu-pdu
{
h323-message-body setup :
guid '8062566962C3413513003C010A640437'H
>> we get call proceeding and alerting.
12:06:10.238 |In Message -- H225CallProceedingMsg -- Protocol= H225Protocol|*^*^*
12:06:10.243 |In Message -- H225AlertMsg -- Protocol= H225Protocol|*^*^*
>> alerting tone is played to the phone.
12:06:10.244 |StationD: (0000753) StartTone tone=36(AlertingTone), direction=0.|1,100,13,2612.6^192.168.106.10^*
>> the phone at the other side has picked up the call. Now audio has to be established.
12:06:12.575 |SPROCRas - {
h323-uu-pdu
{
h323-message-body connect :
>> IP Phone and h323 leg are connected on this cluster.
12:06:12.575 |ARBTRY-ConnectionManager-wait_AuConnectRequest(19418084,19418085)|1,100,13,2612.10^192.168.106.10^*
12:06:12.576 |ARBTRY-ConnectionManager- wait_AuConnectReply(19418084,19418085)|1,100,180,97.1^*^*
12:06:12.577 |StationD: (0000753) CallState callState=5 lineInstance=1 callReference=19418084 privacy=0 sccp_precedenceLv=4 precedenceDm=0|1,100,180,97.1^*^*
>> H245 messages exchanged between the sides.
12:06:12.707 |H245ASN - TtPid=(97) -Outgoing #625 -value MultimediaSystemControlMessage ::= request : terminalCapabilitySet :
12:06:12.839 |H245ASN - TtPid=(97) [0xfbc1298 2828 bytes] -Incoming #534 -value MultimediaSystemControlMessage ::= request : terminalCapabilitySet :
12:06:12.839 |H245ASN - TtPid=(97) -Outgoing #626 -value MultimediaSystemControlMessage ::= response : terminalCapabilitySetAck :
12:06:12.842 |H245ASN - TtPid=(97) [0xfbc1da8 1444 bytes] -Incoming #535 -value MultimediaSystemControlMessage ::= response : terminalCapabilitySetAck :
12:06:12.842 |H245ASN - TtPid=(97) -Outgoing #627 -value MultimediaSystemControlMessage ::= request : masterSlaveDetermination :
12:06:12.968 |H245ASN - TtPid=(97) [0xfbc1da8 1444 bytes] -Incoming #536 -value MultimediaSystemControlMessage ::= request : masterSlaveDetermination :
12:06:12.968 |H245ASN - TtPid=(97) -Outgoing #628 -value MultimediaSystemControlMessage ::= response : masterSlaveDeterminationAck :
12:06:12.971 |H245ASN - TtPid=(97) [0xfbc1da8 1444 bytes] -Incoming #537 -value MultimediaSystemControlMessage ::= response : masterSlaveDeterminationAck :
>> This cluster sends OLC to the other side.
12:06:12.971 |H245ASN - TtPid=(97) -Outgoing #629 -value MultimediaSystemControlMessage ::= request : openLogicalChannel :
dataType audioData : g711Ulaw64k : 20,
>> For the next 12 seconds, there is no action. The other side did not respond with OLCAck. Nor did the other side send an OLC to this side.
So there is a timeout, and this cluster sends release-complete to the other side.
12:06:24.590 |Out Message -- H225ReleaseCompleteMsg -- Protocol= H225Protocol|*^*^*
12:06:24.590 |Ie - Q931CauseIe IEData= 08 02 80 AF |*^*^*
>> CUCM instructs phone to play busy tone to user
12:06:24.590 |StationD: (0000753) StartTone tone=37(ReorderTone), direction=0.|1,100,13,2612.10^192.168.106.10^*
>> This is the SDL signal that shows there was a timeout.
005319461 |2014/04/21 12:06:24.589 |100 |SdlSig |MXAudioPathCheckTimer |interfacesEstablished |MediaExchange(1,100,135,8478) |SdlTimerService(1,100,3,1) |1,100,13,2612.10^192.168.106.10^* |[R:H-H:0,N:0,L:0,V:0,Z:0,D:0]
AF - Resources unavailable, unspecified The channel or service that the user requests is unavailable for an unknown reason. This problem is usually temporary.
