5 Rules and Service Rule Sets
This chapter provides a high level description of NPP Rules and Service Rule Sets.
When an incoming digit string is selected for processing by an NPP Filter in a Rule, the Action Set in the Rule determines what NPP processing will be applied to the digit string.
A set of Rules with different Filters and Action Sets can be created in a Service Rule Set for each service that calls NPP.
Rules
Defining and combining a Filter and an Action Set results in the creation of a Rule. An NPP Rule specifies the message type through the Filter and the Actions to apply to each digit string through the Action Set.
The relationship between Rules, Filters, Action Sets, and Actions is shown in Figure 5-1.
Figure 5-1 Rule, Filter, and Action Set Relationship
A simple representation of Rule definition is shown in Table 5-1
Table 5-1 Rule Definition Criteria
| Rule Definition | ||||||
|---|---|---|---|---|---|---|
| Filters | Action Set | |||||
| Filter NAI | Filter Prefix | Filter Digit Length | Conditioning Action | Service Action | Formatting Action | Outgoing FNAI Class |
| (FNAI) | (FPFX) | (FDL) | (CA) | (SA) | (FA) | (OFNAI) |
Services and Service Rule Sets
An NPP Service Rule Set is a collection of Rules that are associated with an NPP service. NPP supports up to 4096 rules per Service Rule Set. The maximum number of NPP Rules per EAGLE is 8192.
An NPP service is an EPAP-related feature such as Prepaid IDP Query Relay (IDP Relay) or TIF Number Portability, or a function used by one of those features, such as TIF. Table 5-2 lists features and functions and their services that call NPP for processing. The Service Actions used by each service are described in Table 6-3.
Table 5-2 NPP Services
| Feature or Function | Calling Services |
|---|---|
| Info Analyzed Relay Base (IAR Base) | IARCDPN, IARCGPN |
| Prepaid IDP Query Relay (IDP Relay) | IDPRCDPN, IDPRCDPN2, IDPRCDPN3, IDPRCDPN4, IDPRCGPN |
| IDP A-Party Blacklist | IDPRCGPN |
| IDP A-Party Routing | IDPRCGPN |
| Triggerless ISUP Framework (TIF) Number Portability, TIF Simple Number Substitution, TIF Forward to SCS, TIF ASD, TIF GRN, TIF Range CgPN Blacklist | TIF, TIF2, TIF3, TIFCGPN, TIFCGPN2, TIFCGPN3 |
| TIF Subscr CgPN Blacklist | TIFCGPN, TIFCGPN2, TIFCGPN3 |
| TIF Selective Screening | TIF, TIF2, TIF3 |
| Prepaid SMS Intercept Phase I (PPSMS) | MOSMSGCDPN, MOSMSGCGPN |
| Portability Check for MO SMS (MNP SMS) | MOSMSGCGPN |
| MO-based GSM SMS NP, MO SMS ASD, MO SMS GRN | MOSMSGCDPN, MOSMSGCGPN |
| MO-based IS41 SMS NP, MO SMS ASD, MO SMS GRN | MOSMSICDPN, MOSMSICGPN |
| MO SMS IS41-to-GSM Migration | MOSMSICDPN |
| NPP Test Service | NPPT |
The relationship between services, Service Rule Sets, and Action Sets is shown in Figure 5-2.
Figure 5-2 Service Rule Set and Rule Relationship
Service Rule Set Example
A simple example of a Service Rule Set is shown in Table 5-3.
Table 5-3 Service Rule Set Example
| :srvn = NPPT | ||
|---|---|---|
| :fnai = NATL | :fnai = INTL | :fnai = UNKN |
| :fpfx = 060 | :fpfx = * | :fpfx = * |
| :fdl = 10 | :fdl = 15 | :fdl = * |
| :asn = ACTSET1 | :asn = ACTSET2 | :asn = ACTSET3 |
Multiple Services
An NPP service is used by EAGLE EPAP-related features such as IDP Relay, to process digit strings according to the Service Rule Set for that feature. NPP supports multiple services at the same time, each with a separate Service Rule Set.
Table 5-4 illustrates a sample NPP configuration containing Service Rule Sets.
Table 5-4 Sample NPP Configuration
| Rule | |||||||
|---|---|---|---|---|---|---|---|
| Filter | Action Set | ||||||
| Service Rule Set | NAI | FPFX | FDL | CA | SA | FA | OFNAI CLASS |
| NPPT | NATL | 060 | 8 | IGN2, CCDEF DN12 | RTDBTRN | CC, RN, DN | INTL |
| NPPT | NATL | * | * | NONE | NONE | ORIG | NATL |
| NPPT | INTL | * | * | NONE | RTDBTRNSP | ORIG | INTL |
| IDPRCD | UNKN | 9090 | 12 | FPFX, CCDEF DN8 | SA1 | RN, DN | NATL |
| IDPRCD | UNKN | * | * | NONE | NONE | ORIG | UNKN |