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7/29/2019 Signaling call flow (IN)
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IDP
RRBE
Apply Charging
Send Routing Info
CAP signaling
MAP signaling
ERB (DP9)
ApplyChargingReport
Connect
SRI_ack (MSRN)
Send Routing Info
SRI_ack(O- CSI+T- CSI)
HLRbMSCa /VLR/SSP SCPa
IDP
Apply Charging
Continue
MSCb /VLR
O_CSI trigger
The calling party is
charged
IAM( MSRN)
ACM
ANC
ISUP signaling
SCPb
ERB (DP17)
ApplyChargingReport
RC
RC
...
RRBE
The called party is charged
PRN
PRN_ack
FCI
T_CSI trigger
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Initial DP Information element name
Service Key Value=1
Calling Party Number International number(for example: 86139XXXXXXXX)
Calling Partys Category 10 (common subscribers)
Event Type BCSM CollectedInfo(2)
IMSI
locationInfo For MO calls, this parameter must be selected and it should have CellID.
MSC Address (G) MSC/SSPs address
Called Party BCD NumberNumber dialed by the subscriber; please see Point 5 in 3.4 Other Special
Requirements and Description for details
Location Number Toll area code with the international code, for example, Beijing: 8610
IP SSP Capability
Note: please see CAP Specification (09.78) for the filling mode. If this
parameter exists, it means this ssp has the basic srf function (including
collecting DTMF, play the record notification and tone). If this parameter s
value is 00H, it means ssp does not support IP route addressing (CTR s
parameter).
Bearer Capability
Currently SCP does not judge this parameter. after the service has specific
requirements, it will be judged according to the requirements of the servicedepartment