Number Processing in the CAMEL Event Reporting Flow

Number processing in the CAMEL event reporting flow is classified into number processing in the OCSI reporting flow and number processing in the TCSI reporting flow.
Number processing in the CAMEL event reporting flow refers to a process of normalizing numbers in the messages reporting the CAMEL events, which ensures that the subsequent CAMEL services can be normally triggered. Figure 1 shows the flowchart of the number processing in the OCSI and TCSI reporting flows.

Figure 1 Flowchart 

Number processing in the CAMEL event reporting flow is applicable to all the CAMEL services triggered based on the information registered in the HLR and number segment configured on the MSC.
For details about IDP number normalization, see IDP Number Normalization.
Detail:

Table Description

Table	Command	Input Parameter	Output Parameter	Function Description
Special Service Number table	ADD SPCLDN	Special service number Minimum number length Maximum number length	Trigger IN as toll	Based on the number dialed by the calling IN subscriber, the MSOFTX3000 queries the Special Service Number table to determine whether to trigger the OCSI service.
CSI Criteria Match Number Change Data table	ADD CSIDNC	Called number address nature Called prefix DP number	Called number change name	Based on the called number address nature, called prefix, and DP number, the MSOFTX3000 queries the CSI Criteria Match Number Change Data table to determine whether to perform called number change.
IN Service Number table	ADD SRVNUM	Service key IN service number DP number	Operator Send ANM when PA flag	Based on the service key and IN service number, the MSOFTX3000 queries the IN Service Number table to adapt the DP number between the MSC and the SCP. In addition, the MSOFTX3000 determines whether to send the ANM message to the previous-hop office upon PA announcement playing based on the query result.