Description
Component name |
Normalizer |
|---|---|
Applicable contexts |
|
Features using component |
The Sentinel Normalizer normalizes International, Unknown, National, or Subscriber NADI format addresses into either:
-
international address format — starting with CC + MNC
-
national format — starting with MNC
where MNC is specified in the NetworkDialingCode configuration setting.
The Sentinel Normalizer may decide to not normalize the address if the address is either:
-
shorter than the
MinNormalizableLength -
an entry in the
SkipNormalizationAddressList
This allows for short codes and specific longer length numbers to avoid normalization. The SkipNormalizationAddressList is a configurable address list scoped by the Sentinel selection key; it is only given to the component when used by the SIP normalization component.
Normalization is handled by the call type specific normalization features Voice Call Normalization Feature, SMS Normalization Feature and SIP Normalization Feature. It is also used by the XCAP Server to reject requests containing numbers which are not normalizable. Furthermore, MMTelCDIV, MMTelICB and MMTelOCB use the normalization component to normalize numbers in outgoing requests, and when comparing numbers. Special character mapping and prefix and suffix analysis are also performed by the SS7 Prefix and Suffix Analysis Feature.
|
Support formatting of special characters in SS7 signalling (such as: * → B, # → C) is performed by the SS7 Prefix and Suffix Analysis Feature. Sentinel supports special character mapping only if they are prefixes or suffixes. |
Configuration
| Parameter | Type | Description |
|---|---|---|
InternationalEscapeCode |
String |
Escape code for dialing international numbers (for example, 00) |
NationalPrefix |
String |
National dialling prefix (for example, 0) |
CountryCode |
String |
Country code |
NetworkDialingCode |
String |
Network dialling code, used as the MNC |
NormalizeTo |
String |
Indicates the default format of Nature of Address Indication (NADI); one of: [international, national] |
ProfileVersion |
Integer |
The current profile’s version (used for determining if reloading is required) |
MinNormalizableLength |
Integer |
The minimum length of an address for it to be normalizable. |
Normalization address list configuration
The SkipNormalizationAddressList address list uses the standard Address list entry. Addresses that prefix match against entries in the list are not normalized.
|
|
Using the 'SkipNormalizationAddressList' to avoid normalizing numbers is only supported by the (SIP) SipNormalization and the SCCCamelToIMSReOriginationSIPFeature in Sentinel-Volte. |
Configuration profile naming
| Configuration Profile Table Name | Description | Profile naming |
|---|---|---|
NormalizationFeatureConfigProfileTable |
Normalization parameter configuration |
SentinelSelectionKey (for example, |
${PLATFORMOPERATOR}_Sentinel_AddressListConfigurationTable |
Address list configuration |
|
${SELECTIONKEY}:Normalizer:SkipNormalizationAddressList |
${PLATFORMOPERATOR}_Sentinel_AddressListEntryTable |
Feature specific Address List entry table |
Provisioning interfaces
The Normalizer component is provisioned using the Sentinel Normalization REST API or Managing Normalization web interface.
