This feature loads service configuration out of a profile and into session state.

Feature Cheat Sheet

Feature Script Name

VolteLoadServiceConfig

MMTel or SCC

Both

Call-Type

All

Session Plan

All

Execution Point

SipAccess_SessionAccept (SIP), DirectAccess_SessionAccept (SS7)

Network Operator Config

Yes

Subscriber Config

None

POJO or SBB

POJO

Feature FSMs

None

Feature Parameters

None

SAS Support

No

Feature Statistics

VolteLoadServiceConfig statistics are tracked by the sentinel.volte.sip SBB and can be found under the following parameter set:
SLEE-Usage → sentinel.volte.sip service ID → sentinel.volte.sip SBB ID → feature.VolteLoadServiceConfig

Name Type Description

Started

Counter

Incremented when the feature is triggered.

FailedToStart

Counter

Incremented when the feature fails to start.

FailedDuringExecution

Counter

Incremented when the feature fails while executing.

IssuedWarning

Counter

Incremented when the feature issues a warning.

TimedOut

Counter

Incremented when the feature times out during execution.

ConfigLoaded

Counter

Incremented when the feature successfully loads configuration data into session state.

Session Input Variables

Variable name Type Comments

SentinelSelectionKey

SentinelSelectionKey

Used to select which profile to load from the configuration table.

Session Output Variables

Variable name Type Comments

UseHLRBasedCSRN

boolean

Determines whether the service will attempt to generate a CSRN from HLR data when required (using MSRN for GSM networks or TLDN for CDMA networks).

RetrieveHLRRoamingStatus

boolean

Determines whether the service will attempt to determine the subscriber’s roaming status from the HLR when required.

RegistrationDataSource

RegistrationDataSource (enum)

Determines where the service will attempt to retrieve third party registration data from. Possible values are HSS and CASSANDRA.

SubscriberDataSource

SubscriberDataSource (enum)

Determines where the service will attempt to retrieve subscriber data from. Possible values are HSS and HLR.

Configuration

Network configuration is stored in a profile table named VolteServiceConfigProfileTable. Profiles in this table are scoped on Sentinel Selection Key.

Warning Directly modifying values in this profile is not recommended, they should instead be set through the Sentinel VoLTE installer. See Installing Sentinel VoLTE Services and Changing configuration post-installation.
Attribute Type Default Value Description

UseHLRBasedCSRN

boolean

false

Determines whether the service will attempt to generate a CSRN from HLR data when required (using MSRN for GSM networks or TLDN for CDMA networks).

RetrieveHLRRoamingStatus

boolean

false

Determines whether the service will attempt to determine the subscriber’s roaming status from the HLR when required.

RegistrationDataSource

RegistrationDataSource (enum)

CASSANDRA

Determines where the service will attempt to retrieve third party registration data from. Possible values are HSS and CASSANDRA.

SubscriberDataSource

SubscriberDataSource (enum)

HSS

Determines where the service will attempt to retrieve subscriber data from. Possible values are HSS and HLR.

Behaviour

When triggered this feature will attempt to retrieve a profile from the VolteServiceConfigProfileTable using the current Sentinel Selection Key. If it successfully finds a profile it will copy each attribute on the profile into its corresponding session state field. If it fails to find a profile it will raise a configuration error.

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Sentinel VoLTE Version 4.0.0