Just putting this out there so people who run across this behavior aren't stuck looking. Below is pattern matching for a REFER from a Unity SIP Trunk doing a Call Transfer. This is the Same DN with CFwdAll to the same destination however in the first instance it is not associated with a device, and in the second it is associated to a CTI RP.
This is mostly relevant for SIP Implementations with Unity; For us CUCM 11 and Unity 11.
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Unattached, Ticked Active
06087726.001 |19:30:09.887 |AppInfo |Digit Analysis: star_DaReq: daReq.partitionSearchSpace(45f0c630-4208-9787-4d49-a5cad9273618), filteredPartitionSearchSpaceString(partVM:partINTERNAL-SYSTEM:partDN-HQ:partINTERSITE), partitionSearchSpaceString(partVM:partINTERNAL-SYSTEM:partDN-HQ:partINTERSITE)
06087726.002 |19:30:09.887 |AppInfo |Digit Analysis: Host Address=x.x.x.x MATCHES this node's IPv4 address.
06087726.003 |19:30:09.887 |AppInfo |Digit Analysis: star_DaReq: Matching SIP URL, Numeric User, user=4581
06087726.004 |19:30:09.890 |AppInfo |Digit Analysis: getDaRes data: daRes.ssType=[0] Intercept DAMR.sstype=[0], TPcount=[0], DAMR.NotifyCount=[0], DaRes.NotifyCount=[0]
06087726.005 |19:30:09.890 |AppInfo |Digit Analysis: getDaRes - Remote Destination [] isURI[1]
06087726.006 |19:30:09.890 |AppInfo |Digit analysis: patternUsage=3
06087726.007 |19:30:09.890 |AppInfo |Digit analysis: match(pi="1",fqcn="", cn="2526", plv="5", pss="partVM:partINTERNAL-SYSTEM:partDN-HQ:partINTERSITE", TodFilteredPss="partVM:partINTERNAL-SYSTEM:partDN-HQ:partINTERSITE", dd="4581",dac="1")
06087726.008 |19:30:09.890 |AppInfo |Digit analysis: potentialMatches=NoPotentialMatchesExist
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Attached to CTI RP, which then goes off to match based on CFwdAll
06089108.001 |19:31:21.019 |AppInfo |Digit Analysis: star_DaReq: daReq.partitionSearchSpace(45f0c630-4208-9787-4d49-a5cad9273618), filteredPartitionSearchSpaceString(partVM:partINTERNAL-SYSTEM:partDN-HQ:partINTERSITE), partitionSearchSpaceString(partVM:partINTERNAL-SYSTEM:partDN-HQ:partINTERSITE)
06089108.002 |19:31:21.019 |AppInfo |Digit Analysis: Host Address=x.x.x.x MATCHES this node's IPv4 address.
06089108.003 |19:31:21.019 |AppInfo |Digit Analysis: star_DaReq: Matching SIP URL, Numeric User, user=4581
06089108.004 |19:31:21.019 |AppInfo |Digit Analysis: getDaRes data: daRes.ssType=[0] Intercept DAMR.sstype=[33554438], TPcount=[0], DAMR.NotifyCount=[1], DaRes.NotifyCount=[0]
06089108.005 |19:31:21.019 |AppInfo |Digit Analysis: getDaRes - Remote Destination [] isURI[1]
06089108.006 |19:31:21.019 |AppInfo |Digit analysis: patternUsage=2
06089108.007 |19:31:21.019 |AppInfo |Digit analysis: match(pi="1", fqcn="", cn="2526",plv="5", pss="partVM:partINTERNAL-SYSTEM:partDN-HQ:partINTERSITE", TodFilteredPss="partVM:partINTERNAL-SYSTEM:partDN-HQ:partINTERSITE", dd="4581",dac="1")
06089108.008 |19:31:21.019 |AppInfo |Digit analysis: analysis results
06089108.009 |19:31:21.019 |AppInfo ||PretransformCallingPartyNumber=2526
|CallingPartyNumber=2526
|DialingPartition=partDN-HQ
|DialingPattern=4581
|FullyQualifiedCalledPartyNumber=4581
|DialingPatternRegularExpression=(4581)
|DialingWhere=
|PatternType=Enterprise
|PotentialMatches=NoPotentialMatchesExist
|DialingSdlProcessId=(0,0,0)
|PretransformDigitString=4581
|PretransformTagsList=SUBSCRIBER
|PretransformPositionalMatchList=4581
|CollectedDigits=4581
|UnconsumedDigits=
|TagsList=SUBSCRIBER
|PositionalMatchList=4581
|VoiceMailbox=
|VoiceMailCallingSearchSpace=partVM
|VoiceMailPilotNumber=8000
|RouteBlockFlag=RouteThisPattern
|RouteBlockCause=0
|AlertingName=
|UnicodeDisplayName=
|DisplayNameLocale=1
|InterceptPartition=partDN-HQ
|InterceptPattern=4581
|InterceptWhere=
|InterceptSdlProcessId=(0,0,0)
|InterceptSsType=33554438
|InterceptSsKey=0
|InterceptSsNotifyType=1
|OverlapSendingFlagEnabled=0
|WithTags=
|WithValues=
|CallingPartyNumberPi=NotSelected
|ConnectedPartyNumberPi=NotSelected
|CallingPartyNamePi=NotSelected
|ConnectedPartyNamePi=NotSelected
|CallManagerDeviceType=NoDeviceType
|PatternPrecedenceLevel=Routine
|CallableEndPointName=[3f4501ca-fdbc-d00c-c6b2-2fefe5d12288]
|PatternNodeId=[3f4501ca-fdbc-d00c-c6b2-2fefe5d12288]
|AARNeighborhood=[]
|AARDestinationMask=[]
|AARKeepCallHistory=true
|AARVoiceMailEnabled=false
|NetworkLocation=OnNet
|Calling Party Number Type=Cisco Unified CallManager
|Calling Party Numbering Plan=Cisco Unified CallManager
|Called Party Number Type=Cisco Unified CallManager
|Called Party Numbering Plan=Cisco Unified CallManager
|ProvideOutsideDialtone=false
|AllowDeviceOverride=false
|IsEmergencyNumber=false
|AlternateMatches=
