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Cisco TSP (TAPI) - Unable to identify which parking device call is coming from




I am using Cisco TSP (TAPI) on windows platform for CTI integration with Cisco platform.


I am parking a call using undirected call parking feature. When Call Park Reversion Timer expires and the parked call comes back and rings on the extension I am unable to identify which parking device the call has come from. The information provided in the TAPI call ringing-in event does not contain any info about the parking device. Just wondering if it is the right behavior of Cisco TSP that it will not provide any reference to the parking device in the call event or if it is a bug. Please advise.


Here is a an example:

Device-A = 1042
Device-B = 1001
Parking-Device = 3000


Device-B is monitored by TAPI


Device-A calls Device-B
Call-1 rings on Device-B and is answered by using TAPI API feature lineAnswer
Call-1 is now connected between Device-A and Device-B
Call-1 is parked (undirected) from Device-B by using TAPI API feature linePark
Call-1 now leaves Device-B. Call-1 is now between Device-A and Parking-Device


Park reversion timer (default 60 seconds) expires
Call-1 now leaves Parking-Device and rings-in on Device-B


Below is a TAPI call info of call ringing-in event on Device-B. dwRedirectingID and dwRedirectionID parties both appear to be same which is Device-B. Should not dwRedirectingID be the Parking-Device instead?


Line TAPI ( t=324947203, d=103C3, m=2, i=1, p1=2, p2=0, p3=0 )
LINECALLSTATE_OFFERING - Line > Cisco Line: [SEPC471FE43882E] (1001)=1037Dh, hCall=103C3h
Call > AN=1001, DN=Cisco Line: [SEPC471FE43882E] (1001)
Call > hLine=1037Dh, dwLineDeviceID=0h, dwAddressID=0h
Call > dwBearerMode=3h, dwRate(bps)=0h, dwMediaMode=4h, dwCallParamFlags=0h
Call > dwCallID=400C90h [4197520], dwRelatedCallID=0h [0]
Call > CallStates=FF3Fh, Origin=2h, Reason=200h, Trunk=FFFFFFFFh
Call > Caller, Flags=8h, VSz=5, V=1042, NSz=0
Call > Called, Flags=8h, VSz=5, V=1001, NSz=0
Call > Connected, Flags=20h, VSz=0, NSz=0
Call > Redirection, Flags=8h, VSz=5, V=1001, NSz=0
Call > Redirecting, Flags=8h, VSz=5, V=1001, NSz=0
Call > dwNumOwners=1h [1], dwNumMonitors=0h [0]



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