BBIFF LMISF DF2 DF3 LEMFADMF
X1_1: Activate
Interception
[Tel URI/SIP URI/IMEI
as Target]
Target Id
Stored
S8HR APNs
Packets (IMS
Signalling Bearer
(S8HR APN))
SIP Message
Target?
YES
X2: {SIP Message}
with Correlation
Number HI2: {SIP Message} with
the Correlation Number
Deliver packets of Media Bearer
related to the identified intercepted
IMS Signalling Bearer to LMISF
Packets (Media Bearer
(associated with the
intercepted IMS
Signalling Bearer))
X3: {Media Packets}
with the Correlation
Number HI3: {Media Packets}
with the Correlation
Number
Deliver packets of IMS Signalling
Bearer related to S8HR APNs to LMISF
Remember the
intercepted IMS
Signalling
Bearer
Correlated
NO
Store the SIP
message for
later use
Examine the SIP
message from the
packets
1
2
4
56
7
8
910
Correlate the
CC with IRI
IMS Signaling Bearer (S8HR)/Media Bearer (S8HR)
is created, modified or deleted
3
