TIF Redirecting-Number Based Blocklist Feature

The TIF Redirecting-Number Based Blocklisting Feature allows modifying CdPN based on the redirecting number, if present in the incoming message.

If the redirecting number is found in the incoming message, then it is decoded. UDR lookup is executed to check the presence of ASD with RDN as a key. If the SUBCDPN parameter is configured, the number substitutes the CdPN digits instead of ASD.

The following table provides a summary of the Service Action used specifically for TIF Redirecting-Number Based Blocklist.

Table 2-14 Summary of TIF Redirecting-Number Based Blocklist Service Actions

Service Action	Description	Function	Precedence
TIFRDNBL	CdPN Service Action	Sets the NPPSTATE.ASD field if an individual or range lookup on the Redirecting Number or CgPN leads to an entry containing a non-empty ASD digit string. And substitutes SUBCDPN digits instead of ASD digits in-case the lookup was performed on Redirecting-Number.	90

Configuration Options Used

No specific configuration options are used.

Action Performed

The redirecting number is decoded from the IAM message received. If redirecting number is present in IAM and the applied Service Action is TIFRDNBL, UDR is queried with the redirecting number as a key. However, if redirecting number is not present in IAM, UDR is queried using the original CgPN digits as a key.

If ASD is returned from UDR, it is stored in NPPSTATE.ASD, which is used during the processing of FA, when FA is equal to ASD. If ASD is found corresponding to CgPN in UDR, ASD digits are used to replace CdPN in outgoing digits. However, if ASD is found corresponding to RDN in UDR, SUBCDPN digits are used to replace CdPN in outgoing digits.

If there is no redirecting number available in IAM or any of the criteria for RDN is not met, then the functionality remains same as CgPNASDRqd.

Terminating Action

Yes