Description

Feature name

SipShortCode

Applicable contexts

SIP service

SAS Support

Yes

Prerequisite features

Classify Call Scenario Feature

The Short Code feature is a pre-credit check feature that performs number translation of short-codes in the request-URI of the received INVITE request. If the request-URI does include a short-code, then SipShortCode updates the request-URI and To addresses in the received INVITE, using a short-code translation table.

Note

The SipShortCode feature will only do analysis if:

  • the request-URI is a tel URL

  • the request-URI is a SIP URI, where the user part of the URI is a digit string.

Addresses may contain the digits allowed in a global phone number as per RFC 2806.

If the number is in international format and is prefixed by the home country code then the prefix will be removed before performing analysis. The feature makes use of the Normalization Component to remove the prefix.

If the number is in international format and is not prefixed by the home country code then no analysis will be performed.

Sentinel has a configurable short-code address list, scoped by the Sentinel selection key, which is used for this digit analysis. If a short-code matches an address in the request-URI, then both the request-URI and the To address are updated with a translated address (that corresponds to the short-code).

Note

The SipShortCode feature will not do any analysis if the CallType is EmergencyCall or MobileTerminating.

Subsequent features may make additional changes to the request URI, so the final address sent in the INVITE will be dependent on those features.

Leg Manager inputs

Leg Name Type Format Description Behaviour if null/invalid

calledParty

InviteRequest

org.jainslee.resources.sip.SipRequest

See the EasySIP javadoc

INVITE sent to the called party

Runtime exception handled by feature runner
Tip

The Called Party INVITE request is fetched from the called party Leg via the LegManager API.

The Called Party INVITE request is updated via the LegManager API.

Session State and Leg inputs and outputs

Inputs

Name Type Format Description Behaviour if null/invalid

SentinelSelectionKey

com.opencloud.sentinel.common.SentinelSelectionKey

selection key (for example, <platform>::::)

For selecting configuration data

Report featureCannotStart, featureHasFinished

CallType

com.opencloud.sentinel.common.CallType

One of: MobileOriginating, MobileTerminating, MobileForwarded, NetworkInitiated, EmergencyCall

Session type of this call

Throw runtime exception, report featureHasFinished

Error scenarios

Scenario Handling

Sessionstate SentinelSelectionKey is null

Report featureCannotStart

Called Party Leg is null

Throw runtime exception Report featureHasFinished

Called Party Invite Request is null

Throw runtime exception Report featureHasFinished

Sessionstate CallType is null

Throw runtime exception Report featureHasFinished

Feature responses

Response Reason

featureCannotStart

SessionState SentinelSelectionKey is not set

featureHasFinished

feature has finished

Configuration

Short Code feature configuration

Parameters Type Description

MinLength

Integer

Minimum short code length

MaxLength

Integer

Maximum short code length

Example configuration:

MinLength MaxLength

3

3

Short Code address list configuration

The SipShortCode address list entry is an extension of the standard Address list entry, the addition being the ‘translatedAddress’ field which is used for number translation:

Parameter Type Description

…​

…​

…​

TranslatedAddress

String

the value of the short code translated address (in international format)

Example configuration:

Address TranslatedAddress

100

6422987654

200

6422123456

The SipShortCode address is a digit string which can contain any digits valid for the network.

TranslatedAddress is a digit string in international format.

The short code list applies to all subscribers scoped to Sentinel selection key.

Configuration profile naming

Configuration Profile Table Name Description Profile Naming

ShortCodeFeatureConfigProfileTable

Short code feature configuration

SentinelSelectionKey (for example, OpenCloud::::)

${PLATFORMOPERATOR}_SipShortCode_AddressListConfigurationTable

Address list configuration

${SELECTIONKEY}:SipShortCode:SipShortCodeAddressList

${PLATFORMOPERATOR}_SipShortCode_AddressListEntryTable

Feature specific Address List entry table

${SELECTIONKEY}:SipShortCode:SipShortCodeAddressList:${ADDRESS}
Note The SipShortCode feature address list configuration uses the same profile tables as the SS7 version of the feature. The names of the address lists are, however, particular to the SipShortCode feature.

Normalization Configuration

See Normalization Component.

Provisioning interfaces

The feature is provisioned using the Sentinel Features REST API or web interface.

Statistics

Name Description

ShortCodeTranslated

Counter incremented when a short code is translated.

InternationalNumberIgnored

Counter incremented when a number is ignored as it is international and not prefixed by the home country code.

StrippedHomeCountryCode

Counter incremented when the home country code prefix is removed from a number before attempting analysis.
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Sentinel Express Version 3.0.0