MRS

14A

CSCF

14A

HSS

14A

OSS-RC

O16A:

Upgrade for OSS-RC is only needed when new parameters and counters are introduced in MTAS and are to be used.

Up to O18B:

The vMTAS 1.14 is backward compatible except synchronizing Number Normalization, Number Analysis and Carrier Select configuration. The same function level exists, but the method for synchronizing the configuration is changed. Respective Table EditAction and CommitAction commands need to be executed before and after the configuration change.

EMA

7.0 CP2

SBG

15B

vENM

vMTAS Lifecycle Management requires 17.15(-3.6.8) version of VNF-LCM; therefore use the 18A release of ENM.

Up to ENM 19.1:

The vMTAS 1.14 is backward compatible except synchronizing Number Normalization, Number Analysis and Carrier Select configuration. The same function level exists, but the method for synchronizing the configuration is changed. Respective Table EditAction and CommitAction commands need to be executed before and after the configuration change.

Multi-Persona

vMtasMultiPersona

CXC 401 2309

-

-

-

-

-

-

CEL

SIP

No Impact

New “Communication Event Logging (CEL)” I/F is introduced where communication event is reported through PUBLISH message for a successful or unsuccessful call attempts. A PUBLISH Request is sent with “call-event-info” XML to event server whose address is configured in mtasCelEventServerName.

MP

H248

No Impact

MTAS supports new service change method: graceful reason: 908. After the arrival of the service change, new connections will not be allowed, but the established connections are not affected. New CM has been introduced to represent this state, called mtasMrfpNodeOperState.

Rf

DIAMETER

No impact

New Supplementary-Service-Identity AVP value added – UNSUCCESSFUL_MP_CS_SELECTION.

This AVP will be populated by Multi-Persona service in Originating Call with Multi-Persona on CS Access use case, when MPCN from incoming INVITE could not be recognized by the service, what leads to unsuccessful call setup.

ISC

SIP

No impact

The following new cases of SIP MESSAGE usage are added:

MESSAGE received outside an existing dialog carrying application specific information on an established SIP Control Channel (e.g. MCMP)

MESSAGE is sent as an acknowledgement of reception and processing of the request from the previous paragraph on an established SIP Control Channel (e.g. MCMP)

MESSAGE is sent as a result of an application specific condition on an established SIP Control Channel (e.g. MCMP).

MTAS is rejecting not expected MESSAGE events with 606 Not Acceptable and Warning string “Not Acceptable Here

SIPCC

SIP

New interface

New control channel interface between MMTel AS and the VoLTE UE used for persona selection when being attached to CS.

ISC

SIP

Minor impact

One-time SUBSCRIBE message includes P-Charging-Vector header if the REGISTER or the initial INVITE contains it. See HX29660.

CAP, MAP

M3-IETF

Minor impact

Default retransmit behavior in M3-IETF is changed.

Applications that use zero values (default values) of retransmit buffer and retransmit timer in M3-IETF configuration should be prepared to new M3-IETF behavior. The new behavior is that there will be no data retransmit between M3-IETF and SCTP layers in congestion situation. The reason is to prevent a retransmit loop of the same message causing high CPU load. To have a more stable retransmit handling the parameters should have other values than zero.

ISC

SIP

No impact

When multiple AS roles are invoked that is controlled by IFC configuration:

One ISC triggering can invoke the co-located roles in MTAS for SIP signaling on AS generic SIP port. The order of invoked AS roles is specified in the Route header “as=” parameter in the initial SIP request from S-CSCF to MTAS.

The invoked AS name is added to P-Ericsson.Invocation-History header of related SIP requests and responses for trouble shooting.

CAP

CAP

No impact

Previously ITU standard and Global Title was hardcoded for the CAP interface.

Now support for configuration of standard (ITU or ANSI) used on the CAP signaling network is added. Configuration can be done with the mtasCsiCapSccpStandard CM attribute.

COM

CLI, NETCONF

Major Impact

The vMTAS 1.14 is backward compatible except synchronizing Number Normalization, Number Analysis and Carrier Select configuration. The same function level exists, but the method for synchronizing the configuration is changed. Respective Table EditAction and CommitAction commands need to be executed before and after the configuration change.

CAI3G

CAI3G

New service element "communication-event-logging" is added in MTAS for CAI3G information model

-

-

-

-

-

-

-

-

-

-

-

-

-

CarSelCarrierTableSyncState

Added and supported

carSelDialedStringAnalysisTableSyncState

Added and supported

genericThresholdAlarmEnable

Added and supported

interval_timeout

Added and supported

MtasCel

Now supported

mtasCelAdministrativeState

Now supported

mtasCelEventServerName

Now supported

mtasCelReportingFilterList

Now supported

mtasCelReportingHeaderFilter

Now supported

mtasChargingProfileEnhancedReportRoFailureOverRf

Added, but not supported

MtasChargingProfileRoReject

Added, but not supported

mtasChargingProfileRoReject

Added, but not supported

mtasChargingProfileRoRejectAnn

Added and supported

mtasChargingProfileRoRejectDefaultAnnRemoteUser

Now supported

mtasChargingProfileRoRejectDefaultAnnServedUser

Now supported

mtasChargingProfileRoRejectGa

Added, but not supported

MtasCsiCap

Added and supported

mtasCsiCapCdEs

Added and supported

mtasCsiCapCdGti

Added and supported

mtasCsiCapCdNai

Added and supported

mtasCsiCapCdNp

Added and supported

mtasCsiCapCdTt

Added and supported

mtasCsiCapCgEs

Added and supported

mtasCsiCapCgGti

Added and supported

mtasCsiCapCgNai

Added and supported

mtasCsiCapCgNp

Added and supported

mtasCsiCapCgTt

Added and supported

mtasCsiCapSccpStandard

Added and supported

mtasCsiRelayScfAddress

Added but not supported

mtasCsiRelayScfSubsystemNumber

Added but not supported

mtasIdPresOipDisplayNameFiltering

Added but not supported

mtasMmtDomesticRoaming

Added, but not supported

mtasMmtSipccIdentification

Now supported

mtasMmtVersion

Added, but not supported

mtasMrfpNodeOperState

Now supported

mtasMultiPersonaAdministrativeState

Now supported

mtasMultiPersonaEnhancement

Now supported

mtasMultiPersonaInviteDelay

Now supported

mtasMultiPersonaMpcnMaxLifetime

Added and supported

MtasMultiPersonaMpcnRange

Added and supported

mtasMultiPersonaMpcnRangeFirst

Added and supported

mtasMultiPersonaMpcnRangeLast

Added and supported

mtasMultiPersonaOrigPolicyRejectionAnnName

Added, but not supported

MtasNaAnnCauseT

Added and supported

mtasNaAnnCauseTAnnName

Added and supported

mtasNaAnnCauseTRejectCode

Added and supported

mtasNaAnnCauseTRejectReason

Added and supported

MtasScaling

Added and supported

mtasScalingScaleIn

Added and supported

mtasScalingScaleOut

Added and supported

mtasScalingTimeBasedScalingEnabled

Added and supported

mtasSdsConditionalServiceKeys

Added but not supported

mtasSdsConditionalTermCall

Added but not supported

mtasSrvccAlertAckFallbackTime

Added and supported

mtasSrvccPreconditionTime

Added and supported

MtasSscMultiPersona

Added, but not supported

mtasSscMultiPersonaEnforceSscSubscribe

Added, but not supported

mtasSscMultiPersonaNegInvAnnPersonaSel

Added, but not supported

mtasSscMultiPersonaSyntInvPersonaSel

Added, but not supported

numAnaLocalCallTableSyncState

Added and supported

numberNormalisationTableSyncState

Added and supported

shutdown_timeout

Added and supported

VtasCel

Now supported

vtasCelAdministrativeState

Now supported

vtasCelDropBack

Now supported

vtasCelEventServerName

Now supported

vtasCelReportingFilterList

Now supported

vtasCelReportingHeaderFilter

Now supported

vtasCwVersion

Added, but not supported

vtasIdPresOipDisplayNameFiltering

Added, but not supported

vtasMmtDomesticRoaming

Added, but not supported

vtasMmtSipccIdentification

Now supported

vtasMmtVersion

Added, but not supported

vtasMultiPersonaAdministrativeState

Now supported

vtasMultiPersonaEnhancement

Now supported

vtasMultiPersonaInviteDelay

Now supported

vtasMultiPersonaMpcnMaxLifetime

Added and supported

VtasMultiPersonaMpcnRange

Added and supported

vtasMultiPersonaMpcnRange

Added and supported

vtasMultiPersonaMpcnRangeFirst

Added and supported

vtasMultiPersonaMpcnRangeLast

Added and supported

vtasMultiPersonaOrigPolicyRejectionAnnName

Added, but not supported

VtasNaAnnCauseT

Added and supported

vtasNaAnnCauseTAnnName

Added and supported

vtasNaAnnCauseTRejectCode

Added and supported

vtasNaAnnCauseTRejectReason

Added and supported

VtasSscMultiPersona

Added but not supported

vtasSscMultiPersonaEnforceSscSubscribe

Added but not supported

vtasSscMultiPersonaNegInvAnnPersonaSel

Added but not supported

vtasSscMultiPersonaSyntInvPersonaSel

Added but not supported

watchdog_timeout

Added and supported

DN mmasMemoryMonitoringId=1,mmasMonitoringId=1,mmasId=1 "enabled"

"enabled" is set to false. For more information, see section Deleted Alarms.

mtasCbVersion

ENUM 3 = VERSION_3. When it is set to 3 (VERSION_3), Outgoing Communication Barring service reports 141 (INTERNATIONAL_TOLL_RESTRICTION) in charging event when call is barred because of International or International-exHC condition in barring rules.

mtasCsiMapSccpStandard

Corrected the dependency statement to “Can be set to ANSI (0) if mtasCsiMapCdGti and mtasCsiMapCgGti are NO_GT (0), GT_TT (2) or GT_TT_NP_ES (3) and if mtasCsiMapCdTt and mtasCsiMapCgTt is less than 255”. See HX37396.

mtasMmtAsName

The attribute default value is changed from "MMTelAS" to "mmt".

mtasMrControllerMrfcNodeRecoveryTimer

Range changed from 10–7200 to 0–7200. 0 means that the timer is not started, and the MrfcNode is not put to blacklist at all. See HX52510.

Value 0 is not yet supported.

MtasNaAnnCause

Changed Description to indicate, that the configuration is for the originating side.

mtasNaAnnCauseAnnName

Changed Description to indicate, that the configuration is for the originating side.

mtasNaAnnCauseRejectCode

Changed Description to indicate, that the configuration is for the originating side.

mtasNaAnnCauseRejectReason

Changed Description to indicate, that the configuration is for the originating side.

mtasSccAsName

The attribute default value is changed from "SCCAS" to "scc".

mtasStodCallPullPolicyRoaming

There is a new possible enum value: 3=SAME_NETWORK.

vtasCbVersion

ENUM 3 = VERSION_3. When it is set to 3 (VERSION_3), Outgoing Communication Barring service reports 141 (INTERNATIONAL_TOLL_RESTRICTION) in charging event when call is barred because of International or International-exHC condition in barring rules.

VtasNaAnnCause

Changed Description to indicate, that the configuration is for the originating side.

vtasNaAnnCauseAnnName

Changed Description to indicate, that the configuration is for the originating side.

vtasNaAnnCauseRejectCode

Changed Description to indicate, that the configuration is for the originating side.

vtasNaAnnCauseRejectReason

Changed Description to indicate, that the configuration is for the originating side.

MtasChargingProfileRoReject

Was never supported

mtasChargingProfileRoRejectGa

Was never supported

mtasFunctionMmtAsName

Upgrade from previous release – mtasMmtAsName value is copied to mtasFunctionMmtAsName. See HX31452.

mtasFunctionSccAsName

Upgrade from previous release – mtasSccAsName value is copied to mtasFunctionSccAsName. See HX31452.

mtasMultiPersonaImrnLifetime

Deprecated because IMRN acronym was changed for MPCN for readability and new CMs were introduced

mtasMultiPersonaImrnRange

Deprecated because IMRN acronym was changed for MPCN for readability and new CMs were introduced

mtasMultiPersonaImrnRangeFirst

Deprecated because IMRN acronym was changed for MPCN for readability and new CMs were introduced

mtasMultiPersonaImrnRangeLast

Deprecated because IMRN acronym was changed for MPCN for readability and new CMs were introduced

SC114 and SC115

Deprecated

vtasMultiPersonaImrnLifetime

Deprecated because IMRN acronym was changed for MPCN for readability and new CMs were introduced

VtasMultiPersonaImrnRange

Deprecated

vtasMultiPersonaImrnRange

Deprecated because IMRN acronym was changed for MPCN for readability and new CMs were introduced

vtasMultiPersonaImrnRangeFirst

Deprecated because IMRN acronym was changed for MPCN for readability and new CMs were introduced

vtasMultiPersonaImrnRangeLast

Deprecated because IMRN acronym was changed for MPCN for readability and new CMs were introduced

mtasMrfpNodeOperationalState

Not supported, obsolete, mtasMrfpNodeOperState has taken over the role of this CM

carSelDialedStringAnalysisTableSynchronization

CMCO – Carrier Select – made obsolete and replaced by carSelDialedStringAnalysisTableSyncState

carSelCarrierTableSynchronization

CMCO – Carrier Select – made obsolete and replaced by CarSelCarrierTableSyncState

numAnaLocalCallTableSynchronization

CMCO – Number Analysis – made obsolete and replaced by numAnaLocalCallTableSyncState

numberNormalisationTableSync

CMCO Number Normalization – made obsolete and replaced by numberNormalisationTableSyncState

DN "fmAlarmTypeId=Memory,fmAlarmModelId=MMAS,fmId=1"

This is deleted. For more information, see section Deleted Alarms.

MultiPersona Service License Absent

The alarm is raised when mtasMultiPersonaAdministrativeState is unlocked and MultiPersona Service license is absent, expired or invalid, and snoozed when a valid license is installed.

MTAS Time Based Scaling

This alarm will be raised at a specific time configured on the VNF, and is used for triggering the time based scaling feature.

SRM Alarm System Resources High Usage

This threshold-based alarm is raised when one or more system resources are above the configured limits and genericThresholdAlarmEnable is set to 1.

SRM Alarm System Resources Low Usage

This threshold-based alarm is raised when one or more system resources are below the configured limits and genericThresholdAlarmEnable is set to 1.

-

-

MMAS, Heap Memory Load Limit Exceeded

The alarm was raised by the Multimedia Application Server (MMAS) as part of overload protection when the heap memory load exceeds a configured threshold value.

The reason to delete the alarm is because the behavior of standard Java raise the alarm, when the memory is allocated, and cease the alarm, when the garbage collection is executed. This result was a flaky alarm, without traffic impact. See HW61234.

The device will send a SIP MESSAGE with its own IMPU as destination. This MESSAGE should reach the MMTel AS

Trigger the MMTel AS on either the generic SIP port or on the originating port (mtasSipTrafficOriginatingIpPort) when Method=”MESSAGE” AND SessionCase=”ORIGINATING_REGISTERED” AND Header=”Content-Type” Content=”application/vnd.call-id-info+xml”

Multiple AS roles invocation on one ISC triggering

For multiple AS invocation in co-location MTAS on AS generic SIP port, the IFC triggers must contain the AS roles.

Example for originating MTAS:

Trigger2ApplicationServers: xxx: sip:<mtas.operator.net>; as=”scc,foiwf,mmt,priwf”

The order of AS roles is specified in the Route Header “as=”

MtasCelNOkE

Now Supported

MtasCelNOkI

Now Supported

MtasCelOk

Now Supported

MtasMmtInitOrigPlmnSessNOkNet

Added, but not supported

MtasMmtInitOrigPlmnSessNOkService

Added, but not supported

MtasMmtInitOrigPlmnSessNOkSupportNode

Added, but not supported

MtasMmtInitOrigPlmnSessNOkUser

Added, but not supported

MtasMmtInitOrigPlmnUnregSessNOkNet

Added, but not supported

MtasMmtInitOrigPlmnUnregSessNOkService

Added, but not supported

MtasMmtInitOrigPlmnUnregSessNOkSupportNode

Added, but not supported

MtasMmtInitOrigPlmnUnregSessNOkUser

Added, but not supported

MtasMmtInitTermPlmnSessNOkNet

Added, but not supported

MtasMmtInitTermPlmnSessNOkService

Added, but not supported

MtasMmtInitTermPlmnSessNOkSupportNode

Added, but not supported

MtasMmtInitTermPlmnSessNOkUser

Added, but not supported

MtasMmtInitTermPlmnUnregSessNOkNet

Added, but not supported

MtasMmtInitTermPlmnUnregSessNOkService

Added, but not supported

MtasMmtInitTermPlmnUnregSessNOkSupportNode

Added, but not supported

MtasMmtInitTermPlmnUnregSessNOkUser

Added, but not supported

MtasMmtOrigPlmnNetworkSuccessSessionEstablish

Added, but not supported

MtasMmtOrigPlmnUnregNetworkSuccessSessionEstablish

Added, but not supported

MtasMmtTermOrigPlmnSessNOk

Added, but not supported

MtasMmtTermOrigPlmnSessNOkECause

Added, but not supported

MtasMmtTermOrigPlmnSessNOkServiceCause

Added, but not supported

MtasMmtTermOrigPlmnSessOk

Added, but not supported

MtasMmtTermOrigPlmnUnregSessNOk

Added, but not supported

MtasMmtTermOrigPlmnUnregSessNOkECause

Added, but not supported

MtasMmtTermOrigPlmnUnregSessNOkServiceCause

Added, but not supported

MtasMmtTermOrigPlmnUnregSessOk

Added, but not supported

MtasMmtTermPlmnNetworkSuccessSessionEstablish

Added, but not supported

MtasMmtTermPlmnUnregNetworkSuccessSessionEstablish

Added, but not supported

MtasMmtTermTermPlmnSessNOk

Added, but not supported

MtasMmtTermTermPlmnSessNOkECause

Added, but not supported

MtasMmtTermTermPlmnSessNOkServiceCause

Added, but not supported

MtasMmtTermTermPlmnSessOk

Added, but not supported

MtasMmtTermTermPlmnUnregSessNOk

Added, but not supported

MtasMmtTermTermPlmnUnregSessNOkECause

Added, but not supported

MtasMmtTermTermPlmnUnregSessNOkServiceCause

Added, but not supported

MtasMmtTermTermPlmnUnregSessOk

Added, but not supported

MtasMultiPersonaOrigSelAttempts

Now supported

MtasMultiPersonaOrigSelectionsNOkE

Now supported

MtasMultiPersonaOrigSelectionsNOkI

Now supported

MtasMultiPersonaOrigSelectionsOk

Now supported

MtasMultiPersonaTermSelAttempts

Now supported

MtasMultiPersonaTermSelectionsNOkE

Now supported

MtasMultiPersonaTermSelectionsNOkI

Now supported

MtasMultiPersonaTermSelectionsOk

Now supported

MtasSccInitOrigCsPlmnSessAttempts

Added, but not supported

MtasSccInitOrigCsPlmnSessNOkNet

Added, but not supported

MtasSccInitOrigCsPlmnSessNOkUser

Added, but not supported

MtasSccInitOrigCsPlmnSessOk

Added, but not supported

MtasSccInitTermCsPlmnSessAttempts

Added, but not supported

MtasSccInitTermCsPlmnSessNOkNet

Added, but not supported

MtasSccInitTermCsPlmnSessNOkUser

Added, but not supported

MtasSccInitTermCsPlmnSessOk

Added, but not supported

MtasSccTermOrigCsPlmnSessCompletionAttempts

Added, but not supported

MtasSccTermOrigCsPlmnSessNOk

Added, but not supported

MtasSccTermOrigCsPlmnSessOk

Added, but not supported

MtasSccTermTermCsPlmnSessCompletionAttempts

Added, but not supported

MtasSccTermTermCsPlmnSessNOk

Added, but not supported

MtasSccTermTermCsPlmnSessOk

Added, but not supported

MtasSdsCapInitDPRelayAttempt

Added, but not supported

MtasSdsPlmnCapInitDPOrigPlmnNOkE

Added, but not supported

MtasSdsPlmnCapInitDPOrigPlmnNOkI

Added, but not supported

MtasSdsPlmnCapInitDPOrigPlmnOk

Added, but not supported

MtasSdsPlmnImrnNOkE

Added, but not supported

MtasSdsPlmnImrnNOkI

Added, but not supported

MtasSdsPlmnImrnOk

Added, but not supported

MtasSubsReregOk

Fixed no increment in common scenario when mtasSubsDataInitRegHSSFetchDelay=3. See HW90791.

-

-

-

-

-

-

Health Check

Minor Impact

Minor NBC changes on interface of Health Check triggering script:

• Type ‘troubleshooting’ renamed to ‘full’

• Periodic scheduling options changed

• Period scheduling unit changed from second to hour

XML format report changed because of schema changes. HTML report is unchanged.

Health Check

Minor Impact

‘SoftwareVersions’ check functionality is extended to verify if R-states of all MTAS components are the same.

SS7 trace

Minor impact

The ss7trace.log file has changed permission to prevent others than users with root privileges to read it. Also permissions for the ss7caf-collect-info script is changed to only allow users with root privileges to execute it. This means that if still root user executes it there is no impact. If a user is belonging to system-ts group is used, a password will be required to access the script. No other users are allowed to execute.

Feature

Service

Impact

Description of Changes

Announcement according to Reason header

Network Announcement

No impact

Instances of the new CMs parameters will not exist after the upgrade and accordingly the new function will be disabled by default. In terminating case an announcement can be played based on combination of SIP error status code + Q.850/SIP cause code and SIP error response can be configurable, the same way as it works for originating. This is controlled by a new MOC MtasNaAnnCauseT, or for Wholesale VtasNaAnnCauseT, and its attributes.

Communication Barring Service is enhanced to report SSID 141 for International or International-exHC condition in barring rules.

Communication Barring

No Impact

When mtasCbVersion is set to 3 (VERSION_3), Outgoing Communication Barring service reports SSID value 141 (INTERNATIONAL_TOLL_RESTRICTION) in charging event when call is barred because of International or International-exHC condition in barring rules.

Communication Barring Service is enhanced to report SSID 141 for International or International-exHC condition in barring rules.

Communication Barring

No Impact

When mtasCbVersion is set to 3 (VERSION_3), Outgoing Communication Barring service reports SSID value 141 (INTERNATIONAL_TOLL_RESTRICTION) in charging event when call is barred because of International or International-exHC condition in barring rules.

Ro Announcement for errors without Announcement AVP

Online Charging

No Impact

MTAS can play Ro reject announcement in case any CCA-I or CCA-U message contains command or service level error code or Experimental-Result-Code AVP, even when the CCA does not contain Announcement-Instructions AVP, if CCFH action is set to TERMINATE and it is configured through CM parameters.

Generic announcement will be played, if the result code entry in mtasChargingProfileRoRejectAnn matches the error result code (3xxx/4xxx/5xxx) returned in the CCA message by the OCS, or if that is not true, when mtasChargingProfileRoRejectDefaultAnnRemoteUser and/or mtasChargingProfileRoRejectDefaultAnnServedUser is configured. The generic announcement to be played is configurable through the CM parameters.

The above CM parameters are configurable per charging profile. There can be multiple instaces (0–32) of mtasChargingProfileRoRejectAnn, but only a single instance of the latter two parameters.

Multi-Persona on CS

MultiPersonaService

Minor Impact

Multi persona selection when VoLTE UE attached to CS. See section Impact on MTAS Features.

Time-based auto-scale

VNF-LCM

No Impact

Time-based auto-scaling feature triggered by a preconfigured time-based alarm

EM-driven instantiation

VNF-LCM

No Impact

VNFs instantiated on VNF-LCM are now visible on EO (Ericsson Orchestrator)

EM-driven scale

VNF-LCM

No Impact

VNFs scaled on VNF-LCM are now updated on EO (Ericsson Orchestrator)

HX25597

CDIV

Minor

CDIV in MTAS is now putting "privacy=history" into the History-Info header for 180/181/183/200OK SIP messages from UE_C if reveal-identity-to-caller=false. This is to prevent C-number to be exposed to A.

HX14490

Ad Hoc conference

Minor

Ad-Hoc conference service is now sending partial notification about CP joining into the conference, when conference created using uri list and answer confirmation is enabled. Until now, nothing was sent, because of a fault.

HX19590

PRIW

Minor

PRIW service is adding confirm-status attribute into the SDP of 183 session progress message sent from NWAS, requesting resource reservation confirmation from user.

HX34376

Online Charging

Minor Impact

When OCS orders call termination in CCA-U (response code is 4010 with Announcement-Instruction) after call establishment, then terminating MTAS rejects the SIP session with 480 Temporarily Unavailable.

HX34377

Online Charging

Minor Impact

When OCS orders call termination in CCA-I/CCA-U (response code is 4010 with Announcement-Instruction), then originating MTAS rejects the SIP session with 403 Forbidden.

HX34278

SRVCC

Minor impact

Before this update there was no possibility of PS fallback after the call was answered if the SRVCC transfer was done in alerting state. Now, if mtasSrvccAlertAckFallbackTime > 0, a (second) fallback timer is started at reception of ACK for 200OK on INVITE if the transfer was started in alerting state. A PS fallback can then occur until this timer expires.

HX45973

Japanese Charging

Minor Impact

Until now, because of an earlier fault "MtasJc ICBS Data Not Found" alarm was not raised. Now the alarm can be raised again.

HX26776

Number Portability

No Impact

MTAS Number Portability Service will support replacement based on regular expressions in NAPTR response for ENUM query.

HX34278

SRVCC

No Impact

Added support for mtasSrvccAlertAckFallbackTime. The new alertAckFallback timer for SRVCC alerting is started on ACK and fallback can then happen until it expires. If the alertAckFallback time > 0, then fallback can also happen after the legacy fallback timer expires and before the new one is started (on ACK).

HX35299

SRVCC

Minor Impact

Added a check if preconditions exist in media stream, if they are present then add the precondition tag to Require header in the provisional response to access transfer INVITE.

HX32907

Short Number Dialing

Minor

With this fix when a SND user creates an Ad-Hoc conference with uri list, the From header of the dialout INVITEs will be updated.

HX35573

SRVCC

No Impact

When a new CM attribute (mtasSrvccPreconditionTime) is set to a value greater than 0, SRVCC pre-alerting access transfer INVITE will be delayed by SCC AS if there’s an early dialog that does not have QoS parameters negotiated (if preconditions are required)

HW67604

Alarms

Minor Impact

Because of an earlier fault NeLS Alarms might not be cleared even if the related features are disabled in MTAS. Now this fault is fixed, so the alarms will be ceased in this case.

HX34278

SRVCC

No impact

The new mtasSrvccAlertAckFallbackTime timer is started on ACK and fallback can then happen until it expires. If the mtasSrvccAlertAckFallbackTime time > 0, then fallback can also happen after the legacy fallback timer expires and before the new one is started (on ACK).

HX38859

MTAS Awareness after IS recovery

Minor Impact

The checking of the 'initialselection' tag in top most Route header was changed to case-insensitive for MTAS Awareness after IS recovery invocation