2.6.3 TIF Subscr CgPN Blocklist Feature
- The Calling Party is found in the Number Portability and the CgPN is marked as Blocklisted; the CgPN has CgBL flag=YES.
- The CgPN is not found in the Number Portability.
Two Service Action Data (SA Data) values can be associated with provisioned TIF CgPN Blocklist Service Actions to provide configurable Release Cause values for the Blocklist scenarios. One value is used for ANSI ISUP and the other value is used for ITU ISUP.
TIF Subscr CgPN Blocklist provides the following functions:
- Definition of feature-specific pre-NPP processing to be performed by TIF
- Service Action specification (including Service Action names and precedence)
- Service Action Handlers
- Feature-specific post-NPP processing, if needed
TIF Subscr CgPN Blocklist Service Action Handlers
- Number Portability lookup
- Interpretation of results from Number Portability lookups
- NPP processing of Service Actions that are used for TIF Subscr CgPN Blocklist
- Post-NPP processing of the outgoing message
The following table provides a summary of the Service Actions used specifically for TIF Subscr CgPN Blocklist.
Table 2-9 Summary of TIF Subscr CgPN Blocklist Service Actions
| Service Action | Description | Function | Precedence |
|---|---|---|---|
| BLRLS | TIF CgPN Blocklist in UDR Release | Indicates that a Release (REL) will be generated if the Calling Party is found in the Number Portability and the CgPN contains the CgBL flag=YES. | 91 |
| BLNFNDRLS | TIF CgPN not-in-UDR Release | Indicates that a Release (REL) will be generated if the CgPN digits are not found in the Number Portability and finds the CgPN digits. | 91 |
BLRLS Service Action Handler for TIF CgPN UDR-based RELEASE
The BLRLS Service Action Handler indicates that an REL will be sent if Calling Party digits are found in the Number Portability with CgBL=YES.
Configuration Options Used
The provisioned SAxVAL[1] value contains the Release Cause value used in the REL for an IAM ISUP ANSI message; the provisioned SAxVAL[2] value contains the Release Cause value used in the REL for an IAM ISUP ITU message.
Action Performed
The BLRLS Service Action Handler performs an Number Portability lookup and finds the CgPN digits in the Number Portability. If the Calling Party digits in the Number Portability have CgBL=YES, the Service Action Handler indicates that an REL will be sent to the originator of the IAM during post-NPP processing. The REL will contain the provisioned SAxVAL[1] value for the Release Cause if ANSI ISUP, or the provisioned SAxVAL[2] value for the Release Cause if ITU ISUP. The REL will not include a Redirection Number. The original MSU is discarded.
If the TIF Subscr CgPN Blocklist feature is not turned ON or the CgPN is not found in the Number Portability, or if the CgPN is found but is not marked as Blocklisted, the Service Action Handler completes without any changes.
No Formatting Actions are populated.
Terminating Action?
Yes when the subscriber is Blocklisted.
BLNFNDRLS Service Action Handler for TIF CgPN not-in-UDR RELEASE
The BLNFNDRLS Service Action Handler performs an Number Portability lookup and does not find the CgPN digits in the Number Portability.
Configuration Options Used
The provisioned SAxVAL[1] value contains the Release Cause value used in the REL for an IAM ISUP ANSI message; the provisioned SAxVAL[2] value contains the Release Cause value used in the REL for an IAM ISUP ITU message.
Action Performed
If CgPN digits are not found in the Number Portability, the Service Action Handler indicates that an REL will be sent to the originator of the IAM during post-NPP processing. The REL will contain the provisioned SAxVAL[1] value for the Release Cause if ANSI ISUP, or with the provisioned SAxVAL[2] value for the Release Cause if ITU ISUP. The REL will not include a Redirection Number. The original MSU Is discarded.
If the TIF Subscr CgPN Blocklist feature is not turned ON or if the CgPN is found in the Number Portability, the Service Action Handler completes without any changes.
No Formatting Actions are populated.
Terminating Action?
Yes