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MSC/VLR HLR/AuC
Any Location Any Location
Location Update (LU)with Authentication
(i) SAIN [beg]
(ii) SAIN [end]
(iii) UpLoc [beg]
(iv,1) ISD [cont]
(iv,n) ISD [cont]
(v) ISD [end]
(vi) UpLoc [end]
Signaling
Legend:
SAIN = Send Authentication Information
UpLoc = Update Location
ISD = Insert Subscriber Data
MSC/VLRHLR
Any LocationAny Location
Mobile Terminated Call (MTC)
(ii) PRN [beg]
(i) SRI [beg]
Legend:
SRI = Send Routing Information
PRN = Provide Roaming Number (MSRN)
SignalingTraffic
GMSC
MTC
Any Location
(iv) SRI [end]
(iii) PRN [end]
ISUP call
SMSC
Any LocationAny Location
Mobile Originated and Terminated SMS(SMS-MO and SMS-MT)
(iv) SRI for SM [beg]
(ii) MOFS [beg]
Legend:
SMS-MO = Short Message Service – Mobile Originated
MOFS = Mobile Originated – Forward Short Message
SRI for SM = Send Routing Information for Short Message
MTFS = Mobile Terminated – Forward Short Message
SMS-MT = Short Message Service – Mobile Terminated
Signaling
(i) SMS-MO
Any Location
(vi) MTFS [beg]
MSC/VLR HLR
(v) SRI for SM [end]
(iii) MOFS [end]
(viii) MTFS [end]
(iii’) SMS-MO [ack]
(vii) SMS-MT
(vii’) SMS-MT [ack]
A
B
MSC/VLR
Any Location Any Location
Supplementary Service (SS) ActivationExample: CFU (*21*)
(i) SAIN [beg]
(ii) SAIN [end]
(v,1) ISD [cont]
(v,n) ISD [cont]
(iii) RSS [beg]
(vii) RSS [end]
Signaling
Legend:
SAIN = Send Authentication Information
RSS = Register Supplementary Service
DSD = Delete Subscriber Data
ISD = Insert Subscriber Data
SDM = Subscriber Data Management
*21*…
(iv) DSD [cont]
(vi) SDM [end]
HLR/AuC
MSC/VLR
Any Location Any Location
Supplementary Service (SS) DeactivationExample: CFU (#21#)
(i) SAIN [beg]
(ii) SAIN [end]
(v,1) ISD [cont]
(v,n) ISD [cont]
(iii) DSS [beg]
Signaling
Legend:
SAIN = Send Authentication Information
DSS = Deactivate Supplementary Service
ISD = Insert Subscriber Data
#21#
(iv) DSS [end]
(vi) ISD [end]
HLR/AuC