Sentinel VoLTE 4.1 :: Sentinel VoLTE Administration Guide

SubscriberDataLookupFromHSS is responsible for reading data from the HSS and writing it into Sentinel session state fields.

The data it reads from the HSS must be accessed from TransparentUserData in the HSS.

Feature cheat sheet

B2BUA Instance SAS Support Originating / Terminating Point(s) in Session Plan Network Operator Data Subscriber Data Stateful or Stateless POJO Feature or SBB Feature Other notes

B2BUA Instance	SAS Support	Originating / Terminating	Point(s) in Session Plan	Network Operator Data	Subscriber Data	Stateful or Stateless	POJO Feature or SBB Feature	Other notes
Both or either of MMTEL or SCC	Yes	Originating, Forwarding, and Terminating	`SipAccess_SubscriberPreCreditCheck`	Yes	Yes	Stateless	SBB

Both or either of MMTEL or SCC

Yes

Originating, Forwarding, and Terminating

SipAccess_SubscriberPreCreditCheck

Yes

Stateless

SBB

Prerequisite features

SubscriberDetermination
IMSIDLookup, or IMSIDLookupFromCassandraSIP

Session input variables

Attribute Name	Type
Subscriber	String
RegistrationRecords	List<RegistrationRecord>

Attribute Name

Type

Subscriber

String

RegistrationRecords

List<RegistrationRecord>

Configuration

This feature has an out-of-the-box configuration ensuring the MMTel features work. The configuration may be extended to

support additional MMTel features that use the MMTel services XML schema
support additional features that use a different XML schema

This configuration extensibility is supported through the profile table named ${PlatformOperatorName}_SubscriberDataLookupFromHss2ServiceIndicationProfileTable. If the platform operator name is RocketInc then the profile table name is RocketInc_SubscriberDataLookupFromHss2ServiceIndicationProfileTable.

The profile table contains one profile for each Service Indication that shall be queried in the HSS. Each profile defines:

the Service-Indication
the fully qualified class name of the Transparent Data Codec class - used to parse the returned XML into a Java Object
a list of adaptor class names (fully qualified class names)
an option to enable or disable the query
a default value for operator authorized fields

This table, by default, has entries for MMTEL-Services, IMS-ODB-Information, and Metaswitch-TAS-Services configured. The MMTEL-Services query is enabled by default, while IMS-ODB-Information and Metaswitch-TAS-Services are disabled. The query can be enabled or disabled by setting the value of DisableQuery field to true or false. A value of true disables the query.

Statistics

SubscriberDataLookupFromHss statistics are tracked by the SubscriberDataLookupFromHss2 SBB and can be found under the following parameter set: SLEE-Usage → volte.sentinel.sip service ID → SubscriberDataLookupFromHss2 SBB ID.

Name	Type	Description
Invoked	Counter	Incremented each time the feature runs.
Failed	Counter	Incremented if a fatal error occurs while the feature is running.
SubscriberDataRetrieved	Counter	Incremented when the feature receives subscriber data from the Sh Cache Microservice.
SessionStatePopulated	Counter	Incremented after the feature successfully processes the data it received, and loads it into session state fields.
AdaptorClassError	Counter	Incremented when Adaptor class is not of type SimservsSessionAdaptor or the feature fails to retrieve adaptor class.
CodecClassError	Counter	Incremented when Codec class is not of type ServiceDataCodec or the feature fails to retrieve codec class.
Misconfigured	Counter	Incremented when absent configuration data prevents the feature from running.
SessionStateNotFound	Counter	Incremented when the session state field the feature requires for operation is missing.
ResponseLatency	Sampled	Records elapsed time between sending the request to the HSS and getting a response (in milliseconds).

Name

Type

Description

Invoked

Counter

Incremented each time the feature runs.

Failed

Counter

Incremented if a fatal error occurs while the feature is running.

SubscriberDataRetrieved

Counter

Incremented when the feature receives subscriber data from the Sh Cache Microservice.

SessionStatePopulated

Counter

Incremented after the feature successfully processes the data it received, and loads it into session state fields.

AdaptorClassError

Counter

Incremented when Adaptor class is not of type SimservsSessionAdaptor or the feature fails to retrieve adaptor class.

CodecClassError

Counter

Incremented when Codec class is not of type ServiceDataCodec or the feature fails to retrieve codec class.

Misconfigured

Counter

Incremented when absent configuration data prevents the feature from running.

SessionStateNotFound

Counter

Incremented when the session state field the feature requires for operation is missing.

ResponseLatency

Sampled

Records elapsed time between sending the request to the HSS and getting a response (in milliseconds).

Behaviour

This feature uses the Sh Cache Microservice RA, connected to the Sh Cache Microservice, to access the HSS.

Each time the feature is invoked, it determines the IMS public identity that it should use to query the HSS.

If the session input variable DefaultPublicID of the first RegistrationRecord in the RegistrationRecords list is present, this field is used as the IMS public identity in the HSS query. Otherwise, the the session input variable subscriber is used as the IMS public identity in the HSS query.

The feature requests the Sh Cache Microservice RA to fetch the transparent user data for the IMS Public Identifier and Service Indication. This data is stored in the corresponding session-state fields.

The feature can be configured to fetch multiple Service Indications, i.e. to retrieve different documents. The out-of-the-box configuration looks for the MMTel Services document.

For each profile in the feature’s configuration

the feature requests the Sh Cache Microservice RA to fetch the transparent user data document
Once a result is available, each adaptor in the list of adaptors is invoked in order to populate session state

MMTel-Services Schema to Session-State Fields

The MMTel-Services schema is configured into this feature in all out-of-the-box installations. This section describes the source of a variable (from within the returned document), and the destination session state field name and attribute for the out-of-the-box configuration.

OIP

XPath in document (From) Session-State Field (To) Default values

XPath in document (From)	Session-State Field (To)	Default values
MMTELServices/complete-originating-identity-presentation/originating-identity-presentation/active	MMTelOIPServiceData.active	If not present in the XML document, the field is set to `true` according to 3GPP TS 24.623.
MMTELServices/complete-originating-identity-presentation/operator-originating-identity-presentation/restriction-override	MMTelOIPServiceData.override	If not present in the XML document, the field is set to `override-not-active` according to 3GPP TS 24.607. This is the default from the XML schema.
MMTELServices/complete-originating-identity-presentation/operator-originating-identity-presentation/@authorized	MMTelOIPServiceData.operatorAuthorized	Value read from Configuration

MMTELServices/complete-originating-identity-presentation/originating-identity-presentation/active

MMTelOIPServiceData.active

If not present in the XML document, the field is set to true according to 3GPP TS 24.623.

MMTELServices/complete-originating-identity-presentation/operator-originating-identity-presentation/restriction-override

MMTelOIPServiceData.override

If not present in the XML document, the field is set to override-not-active according to 3GPP TS 24.607. This is the default from the XML schema.

MMTELServices/complete-originating-identity-presentation/operator-originating-identity-presentation/@authorized

MMTelOIPServiceData.operatorAuthorized

Value read from Configuration

For more information on MMTEL OIP see MMTelOIP.

OIR

XPath in document (From) Session-State Field (To) Default values

XPath in document (From)	Session-State Field (To)	Default values
MMTELServices/complete-originating-identity-restriction/originating-identity-presentation-restriction/active	MMTelOIRServiceData.active	If not present in the XML document, the field is set to `true` according to 3GPP TS 24.623.
MMTELServices/complete-originating-identity-restriction/operator-originating-identity-presentation-restriction/mode	MMTelOIRServiceData.mode	If not specified the field is set to `temporary` according to 3GPP TS 24.607.
MMTELServices/complete-originating-identity-restriction/originating-identity-presentation-restriction/default-behaviour	MMTelOIRServiceData.defaultBehaviourType	If not specified the field is set to `presentation-restricted` according to 3GPP TS 24.607. This is the default from the XML schema.
MMTELServices/complete-originating-identity-restriction/operator-originating-identity-presentation-restriction/@authorized	MMTelOIRServiceData.operatorAuthorized	Value read from Configuration

MMTELServices/complete-originating-identity-restriction/originating-identity-presentation-restriction/active

MMTelOIRServiceData.active

If not present in the XML document, the field is set to true according to 3GPP TS 24.623.

MMTELServices/complete-originating-identity-restriction/operator-originating-identity-presentation-restriction/mode

MMTelOIRServiceData.mode

If not specified the field is set to temporary according to 3GPP TS 24.607.

MMTELServices/complete-originating-identity-restriction/originating-identity-presentation-restriction/default-behaviour

MMTelOIRServiceData.defaultBehaviourType

If not specified the field is set to presentation-restricted according to 3GPP TS 24.607. This is the default from the XML schema.

MMTELServices/complete-originating-identity-restriction/operator-originating-identity-presentation-restriction/@authorized

MMTelOIRServiceData.operatorAuthorized

Value read from Configuration

For more information on MMTEL OIR see MMTelOIR.

TIP

XPath in document (From) Session-State Field (To) Default values

XPath in document (From)	Session-State Field (To)	Default values
MMTELServices/complete-terminating-identity-presentation/terminating-identity-presentation/active	MMTelTIPServiceData.active	If not present in the XML document, the field is set to `true` according to 3GPP TS 24.623.
MMTELServices/complete-terminating-identity-presentation/operator-terminating-identity-presentation/restriction-override	MMTelTIPServiceData.override	If not specified the field is set to `override-not-active` according to 3GPP TS 24.608. This is the default from the XML schema.
MMTELServices/complete-terminating-identity-presentation/operator-terminating-identity-presentation/@authorized	MMTelTIPServiceData.operatorAuthorized	Value read from Configuration

MMTELServices/complete-terminating-identity-presentation/terminating-identity-presentation/active

MMTelTIPServiceData.active

If not present in the XML document, the field is set to true according to 3GPP TS 24.623.

MMTELServices/complete-terminating-identity-presentation/operator-terminating-identity-presentation/restriction-override

MMTelTIPServiceData.override

If not specified the field is set to override-not-active according to 3GPP TS 24.608. This is the default from the XML schema.

MMTELServices/complete-terminating-identity-presentation/operator-terminating-identity-presentation/@authorized

MMTelTIPServiceData.operatorAuthorized

Value read from Configuration

For more information on MMTEL TIP see MMTelTIP.

TIR

XPath in document (From) Session-State Field (To) Default values

XPath in document (From)	Session-State Field (To)	Default values
MMTELServices/complete-terminating-identity-restriction/terminating-identity-presentation-restriction/active	MMTelTIRServiceData.active	If not present in the XML document, the field is set to `true` according to 3GPP TS 24.623.
MMTELServices/complete-terminating-identity-restriction/operator-terminating-identity-presentation-restriction/mode	MMTelTIRServiceData.mode	If not specified the field is set to `temporary` according to 3GPP TS 24.608. This is the default from the XML schema.
MMTELServices/complete-terminating-identity-restriction/operator-terminating-identity-presentation-restriction/@authorized	MMTelTIRServiceData.operatorAuthorized	Value read from Configuration

MMTELServices/complete-terminating-identity-restriction/terminating-identity-presentation-restriction/active

MMTelTIRServiceData.active

If not present in the XML document, the field is set to true according to 3GPP TS 24.623.

MMTELServices/complete-terminating-identity-restriction/operator-terminating-identity-presentation-restriction/mode

MMTelTIRServiceData.mode

If not specified the field is set to temporary according to 3GPP TS 24.608. This is the default from the XML schema.

MMTELServices/complete-terminating-identity-restriction/operator-terminating-identity-presentation-restriction/@authorized

MMTelTIRServiceData.operatorAuthorized

Value read from Configuration

For more information on MMTEL TIR see MMTelTIR.

ICB

XPath in document (From) Session-State Field (To) Default values

XPath in document (From)	Session-State Field (To)	Default values
MMTELServices/complete-communication-barring/incoming-communication-barring/active	MMTelICBServiceData.active	If not present in the XML document, the field is set to `true` according to 3GPP TS 24.623.
MMTELServices/complete-communication-barring/incoming-communication-barring/ruleset	MMTelICBServiceData.ruleset	No default value specified.
MMTELServices/complete-communication-barring/operator-incoming-communication-barring/@authorized	MMTelICBServiceData.operatorAuthorized	Value read from Configuration

MMTELServices/complete-communication-barring/incoming-communication-barring/active

MMTelICBServiceData.active

If not present in the XML document, the field is set to true according to 3GPP TS 24.623.

MMTELServices/complete-communication-barring/incoming-communication-barring/ruleset

MMTelICBServiceData.ruleset

No default value specified.

MMTELServices/complete-communication-barring/operator-incoming-communication-barring/@authorized

MMTelICBServiceData.operatorAuthorized

Value read from Configuration

For more information on MMTEL ICB see MMTelICB.

OCB

XPath in document (From) Session-State Field (To) Default values

XPath in document (From)	Session-State Field (To)	Default values
MMTELServices/complete-communication-barring/outgoing-communication-barring/active	MMTelOCBServiceData.active	If not present in the XML document, the field is set to `true` according to 3GPP TS 24.623.
MMTELServices/complete-communication-barring/outgoing-communication-barring/ruleset	MMTelOCBServiceData.ruleset	No default value specified.
MMTELServices/complete-communication-barring/operator-outgoing-communication-barring/@authorized	MMTelOCBServiceData.operatorAuthorized	Value read from Configuration

MMTELServices/complete-communication-barring/outgoing-communication-barring/active

MMTelOCBServiceData.active

If not present in the XML document, the field is set to true according to 3GPP TS 24.623.

MMTELServices/complete-communication-barring/outgoing-communication-barring/ruleset

MMTelOCBServiceData.ruleset

No default value specified.

MMTELServices/complete-communication-barring/operator-outgoing-communication-barring/@authorized

MMTelOCBServiceData.operatorAuthorized

Value read from Configuration

For more information on MMTEL OCB see MMTelOCB.

CDIV

XPath in document (From) Session-State Field (To) Default values

XPath in document (From)	Session-State Field (To)	Default values
MMTELServices/complete-communication-diversion/communication-diversion/active	MMTelCDIVServiceData.active	If not present in the XML document, the field is set to `true` according to 3GPP TS 24.623.
MMTELServices/complete-communication-diversion/communication-diversion/NoReplyTimer	MMTelCDIVServiceData.noReplyTimeOut	The default value is specified in Network operator data for MMTEL CDIV `CDIVNoReplyTimeout`.
MMTELServices/complete-communication-diversion/communication-diversion/ruleset	MMTelCDIVServiceData.rules	No default value specified.
MMTELServices/complete-communication-diversion/operator-communication-diversion/@authorized	MMTelCDIVServiceData.operatorAuthorized	Value read from Configuration

MMTELServices/complete-communication-diversion/communication-diversion/active

MMTelCDIVServiceData.active

If not present in the XML document, the field is set to true according to 3GPP TS 24.623.

MMTELServices/complete-communication-diversion/communication-diversion/NoReplyTimer

MMTelCDIVServiceData.noReplyTimeOut

The default value is specified in Network operator data for MMTEL CDIV CDIVNoReplyTimeout.

MMTELServices/complete-communication-diversion/communication-diversion/ruleset

MMTelCDIVServiceData.rules

No default value specified.

MMTELServices/complete-communication-diversion/operator-communication-diversion/@authorized

MMTelCDIVServiceData.operatorAuthorized

Value read from Configuration

Ruleset Conditions for CDIV. Ruleset is a collection of rules.

XPath in document (From)	Session-State Field (To)	Default values
MMTELServices/common-policy/conditions	MMTelCDIVServiceData.rules[].conditions	No default value specified.
MMTELServices/complete-communication-diversion/forward-to	MMTelCDIVServiceData.rules[].forwardToAction	No default value specified.

XPath in document (From)

Session-State Field (To)

Default values

MMTELServices/common-policy/conditions

MMTelCDIVServiceData.rules[].conditions

No default value specified.

MMTELServices/complete-communication-diversion/forward-to

MMTelCDIVServiceData.rules[].forwardToAction

No default value specified.

For more information on MMTEL CDIV see MMTelCDIV.

CONF

XPath in document (From)	Session-State Field (To)	Default values
MMTELServices/complete-conference/operator-conference/@authorized	MMTelCONFServiceData.operatorAuthorized	Value read from Configuration

XPath in document (From)

Session-State Field (To)

Default values

MMTELServices/complete-conference/operator-conference/@authorized

MMTelCONFServiceData.operatorAuthorized

Value read from Configuration

For more information on MMTEL CONF see MMTel Conference.

CW

XPath in document (From) Session-State Field (To) Default values

XPath in document (From)	Session-State Field (To)	Default values
MMTELServices/complete-communication-waiting/communication-waiting/active	MMTelCWServiceData.active	If not present in the XML document, the field is set to `true` according to 3GPP TS 24.623.
MMTELServices/complete-communication-waiting/operator-communication-waiting/@authorized	MMTelCWServiceData.operatorAuthorized	Value read from Configuration

MMTELServices/complete-communication-waiting/communication-waiting/active

MMTelCWServiceData.active

If not present in the XML document, the field is set to true according to 3GPP TS 24.623.

MMTELServices/complete-communication-waiting/operator-communication-waiting/@authorized

MMTelCWServiceData.operatorAuthorized

Value read from Configuration

For more information on MMTEL CW see MMTelCW.

HOLD

XPath in document (From)	Session-State Field (To)	Default values
MMTELServices/complete-communication-hold/operator-communication-hold/@authorized	MMTelHOLDServiceData.operatorAuthorized	Value read from Configuration

XPath in document (From)

Session-State Field (To)

Default values

MMTELServices/complete-communication-hold/operator-communication-hold/@authorized

MMTelHOLDServiceData.operatorAuthorized

Value read from Configuration

For more information on MMTEL Hold see MMTelHold.

Flexible-Alerting

XPath in document (From) Session-State Field (To) Default values

XPath in document (From)	Session-State Field (To)	Default values
MMTELServices/complete-flexible-alerting/operator-flexible-alerting-group/group-type	MMTelFAGroup	`single-user` or `multiple-users`.
MMTELServices/complete-flexible-alerting/operator-flexible-alerting-group/membership	MMTelFAMembership	`demand` or `permanent`.
MMTELServices/complete-flexible-alerting/operator-flexible-alerting-group/members	MMTelFAServiceData.members[]	No default value.
MMTELServices/complete-flexible-alerting/operator-flexible-alerting-group/identity	MMTelFAServiceData.identity	The `Pilot Number`. No default value.
MMTELServices/complete-flexible-alerting/operator-flexible-alerting-group/@authorized	MMTelFAServiceData.authorized	Value read from Configuration

MMTELServices/complete-flexible-alerting/operator-flexible-alerting-group/group-type

MMTelFAGroup

single-user or multiple-users.

MMTELServices/complete-flexible-alerting/operator-flexible-alerting-group/membership

MMTelFAMembership

demand or permanent.

MMTELServices/complete-flexible-alerting/operator-flexible-alerting-group/members

MMTelFAServiceData.members[]

No default value.

MMTELServices/complete-flexible-alerting/operator-flexible-alerting-group/identity

MMTelFAServiceData.identity

The Pilot Number. No default value.

MMTELServices/complete-flexible-alerting/operator-flexible-alerting-group/@authorized

MMTelFAServiceData.authorized

Value read from Configuration

For more information on MMTEL FA see Flexible Alerting.

ECT

XPath in document (From)	Session-State Field (To)	Default values
MMTelServices/complete-explicit-communication-transfer/operator-explicit-communication-transfer/@authorized	MMTelECTServiceData.authorized	Value read from Configuration

XPath in document (From)

Session-State Field (To)

Default values

MMTelServices/complete-explicit-communication-transfer/operator-explicit-communication-transfer/@authorized

MMTelECTServiceData.authorized

Value read from Configuration

For more information on MMTEL ECT see MMTelECT

IMS-ODB-Information Schema to Session-State Fields

The IMS-ODB-Information schema is configured (but disabled) into this feature in all out-of-the-box installations. This section describes the source of a variable (from within the returned document), and the destination session state field name and attribute for the out-of-the-box configuration.

Operator Determined Barring

For more information see Operator Determined Barring.

Metaswitch-TAS-Services Schema to Session-State Fields

The Metaswitch-TAS-Services schema is configured (but disabled) into this feature in all out-of-the-box installations. This section describes the source of a variable (from within the returned document), and the destination session state field name and attribute for the out-of-the-box configuration.

Basic Services

XPath in document (From)	Session-State Field (To)	Default values
Metaswitch-Services/basic-settings/additional-attributes	MetaswitchBasicSettings.additionalAttributes	If not present in the XML document, the field is set to an empty map.

XPath in document (From)

Session-State Field (To)

Default values

Metaswitch-Services/basic-settings/additional-attributes

MetaswitchBasicSettings.additionalAttributes

If not present in the XML document, the field is set to an empty map.

Location Based Dialling

XPath in document (From) Session-State Field (To) Default values

XPath in document (From)	Session-State Field (To)	Default values
Metaswitch-Services/location-based-dialling/group-id	MetaswitchLocationBasedDialling.groupId	If not present in the XML document, the field is set to `null`
Metaswitch-Services/basic-settings/additional-attributes	MetaswitchLocationBasedDialling.additionalAttributes	If not present in the XML document, the field is set to an empty map.

Metaswitch-Services/location-based-dialling/group-id

MetaswitchLocationBasedDialling.groupId

If not present in the XML document, the field is set to null

Metaswitch-Services/basic-settings/additional-attributes

MetaswitchLocationBasedDialling.additionalAttributes

If not present in the XML document, the field is set to an empty map.

For more information on location based dialling see Location Based Dialling

Forward To Voicemail

XPath in document (From) Session-State Field (To) Default values Notes

XPath in document (From)	Session-State Field (To)	Default values	Notes
metaswitch-services/complete-forward-to-voicemail/forward-to-voicemail/voicemail-server	MetaswitchForwardToVoicemail.voicemailServer	If not present in the XML document, the field is set to `null`.
metaswitch-services/complete-forward-to-voicemail/forward-to-voicemail/additional-attributes AND Metaswitch-Services/complete-forward-to-voicemail/operator-forward-to-voicemail/additional-attributes	MetaswitchForwardToVoicemail.additionalAttributes	If not present in the XML document, the field is set to an empty map of String → String.	Where there is an attribute with the same name in the operator and user sections of the document, the value in the user section takes precedence.
metaswitch-services/complete-forward-to-voicemail/forward-to-voicemail/active	MetaswitchForwardToVoicemail.active	If not present in the XML document, the field is set to `null`.

metaswitch-services/complete-forward-to-voicemail/forward-to-voicemail/voicemail-server

MetaswitchForwardToVoicemail.voicemailServer

If not present in the XML document, the field is set to null.

metaswitch-services/complete-forward-to-voicemail/forward-to-voicemail/additional-attributes AND Metaswitch-Services/complete-forward-to-voicemail/operator-forward-to-voicemail/additional-attributes

MetaswitchForwardToVoicemail.additionalAttributes

If not present in the XML document, the field is set to an empty map of String → String.

Where there is an attribute with the same name in the operator and user sections of the document, the value in the user section takes precedence.

metaswitch-services/complete-forward-to-voicemail/forward-to-voicemail/active

MetaswitchForwardToVoicemail.active

If not present in the XML document, the field is set to null.

For more information on forwarding to voicemail see:

Companion Device

XPath in document (From) Session-State Field (To) Default values Notes

XPath in document (From)	Session-State Field (To)	Default values	Notes
metaswitch-services/complete-companion-device/companion-device/@active	CompanionDeviceData.active	`true`
metaswitch-services/complete-companion-device/operator-companion-device/@authorized	CompanionDeviceData.operatorAuthorized	Value read from Configuration
metaswitch-services/complete-companion-device/operator-companion-device/radio-access	CompanionDeviceData.radioAccess	If not present in the XML document, the field is set to `null`.	Value is a `<network>` element as shown in the `RadioAccess` type. See example below.
metaswitch-services/complete-companion-device/operator-companion-device/msisdn	CompanionDeviceData.msisdn	If not present in the XML document, the field is set to `null`.
metaswitch-services/complete-companion-device/operator-companion-device/additional-attributes AND metaswitch-services/complete-companion-device/companion-device/additional-attributes	CompanionDeviceData.additionalAttributes	If not present in the XML document, the field is set to an empty map of String → String.	Where there is an attribute with the same name in the operator and user sections of the document, the value in the user section takes precedence.

metaswitch-services/complete-companion-device/companion-device/@active

CompanionDeviceData.active

true

metaswitch-services/complete-companion-device/operator-companion-device/@authorized

CompanionDeviceData.operatorAuthorized

Value read from Configuration

metaswitch-services/complete-companion-device/operator-companion-device/radio-access

CompanionDeviceData.radioAccess

If not present in the XML document, the field is set to null.

Value is a <network> element as shown in the RadioAccess type. See example below.

metaswitch-services/complete-companion-device/operator-companion-device/msisdn

CompanionDeviceData.msisdn

If not present in the XML document, the field is set to null.

metaswitch-services/complete-companion-device/operator-companion-device/additional-attributes AND metaswitch-services/complete-companion-device/companion-device/additional-attributes

CompanionDeviceData.additionalAttributes

If not present in the XML document, the field is set to an empty map of String → String.

Where there is an attribute with the same name in the operator and user sections of the document, the value in the user section takes precedence.

Example Radio Access field value

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<radio-access xmlns="http://metaswitch.com/XMLSchema/tas">
  <network>PS</network>
</radio-access>

For more information on companion device support, see Companion Devices.

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