2.1.5 TIF NP Service Action Handlers
TIF NP provides Service Action Handlers for the NPP
Service Actions that are specific to TIF NP. TIF and NPP perform the following
functions for the TIF NP feature:
- Number Portability lookup
- Interpretation of results from Number Portability lookups
- NPP processing of Service Actions that are used for TIF NP
The following table provides a summary of the Service Actions used for TIF NP.
Table 2-1 Summary of TIF NP Service Actions
| Service Action | Description | Function | Precedence |
|---|---|---|---|
| CRP | Circular Route Prevention | Performs an Number Portability lookup on the CdPN and attempts to detect a circular route. | 92 |
| NPNRLS | Number Portability Release on No Match | Performs an Number Portability lookup on the CdPN and indicates release behavior on an unsuccessful lookup. | 91 |
| NPRELAY | Number Portability Relay | Performs an Number Portability lookup on the CdPN and indicates relay behavior. | 80 |
| NPRLS | Number Portability Release on Match | Performs an Number Portability lookup on the CdPN and indicates release behavior on a successful lookup. | 80 |
| CgPNSvcRqd CgPNNPRqd | Calling Number Lookup | Performs an Number Portability lookup on the CgPN. | 80 |