class MtasTads

ManagedElement
+-MtasFunction
+-MtasServices
+-MtasScc
+-MtasTads

This Managed Object Class represents the ICS Terminating Access Domain Selection function.
There is a single instance of this Managed Object Class in each instance of MtasScc.
The instance of this Managed Object Class is created by the system.


This MO is created by the system.

Attributes
integerKeyString
key
mandatory
noNotification
restricted
mtasTads
This attribute is the primary key of MtasTads and this section describes the MtasTads attributes.
BasicAdmState
mtasTadsAdministrativeState = LOCKED
The administrative state of the ICS T-ADS function is used to lock or unlock the function.
When Unlocked, the SCC AS provides the ICS T-ADS function to ICS end-user.


Takes effect: New session
MtasTadsBOPolUseDT
mtasTadsBreakoutPolicy = USE_PREFIX
This attribute defines the policy for breakout to CS with CSRN based on prefix or MSRN from HSS.

Takes effect: New session
MtasTadsCallingPartyCsrnPrefixDT[0..1]
mtasTadsCallingPartyPrefix
This attribute specifies the prefix to be added to the calling party number when the SCC AS terminates a call with break out to the CS domain. The prefix may be used in some solutions to suppress T-CSI trigger looping for calls originated on CS and routed to SCC AS with Terminating Service Domain Selection (T-SDS). It is only applicable when mtasTadsBreakoutPolicy is set to 0.

Takes effect: New session
MtasTadsCsRetryCsSipErrorCodesDT[1..30] nonUnique
mtasTadsCsRetryCsSipErrorCodes = 500;20
This attribute defines the list of SIP error codes or error code ranges and optionally SIP cause codes which causes T-ADS service to execute a CS breakout when call delivered to CS contact fails. When an entry contains both SIP error code and cause code, then it will only match if a SIP error with a given error code and cause code is received. When an entry only contains error code or error code range, without cause code, then it will match all SIP errors with the given error code, with or without any cause code.


Dependencies: The parameter has effect only when mtasTadsSelectionPolicy is set to 4 or 5.
Specification: Single SIP error code (three numerical characters, like 400) or SIP error code range (three numerical character, dash, three numerical characters, like 400-499). Optionally a SIP cause code, separated by a semicolon, can be added at the end of both formats (like 400;20 or 400-499;20)
Takes effect: New session
MtasTadsCsRetryPsSipErrorCodesDT[1..30] nonUnique
mtasTadsCsRetryPsSipErrorCodes = 400-485,487-699
This attribute defines the list of SIP error codes or error code ranges which causes T-ADS service to execute a CS breakout when call delivered to PS contact fails.


Dependencies: The parameter has effect only when mtasTadsSelectionPolicy is set to 3 or 5.
Specification: Single SIP error code (three numerical characters, like 400) or SIP error code range (three numerical character, dash, three numerical characters, like 400-499)
Takes effect: New session
MtasTadsCallingPartyCsrnPrefixDT[0..1]
mtasTadsCsrnPrefix
This attribute specifies the prefix that is added to the called party number when the SCC AS terminates a call with break out to the CS domain. The prefixing may also be used in some solutions (by MSC/MGCF) to suppress T-CSI trigger looping for calls originated on CS and routed to SCC AS with Terminating Service Domain Selection (T-SDS).

Takes effect: New session
MtasTadsForkingControlDT
mtasTadsForkingControl = CSCF_CONTROLLED_FORKING
This attribute defines the controller of Tads calls forking.

Takes effect: New session
MtasTimerMSec00000to030000DT
mtasTadsHssCsrnTimer = 5000
This attribute defines the timer to be used when querying HSS for CSRN/MSRN.


Dependencies: It has different setting depending on Pre-paging supported or not (mtasTadsBreakoutPolicy=1 or 2);It should be coordinated with timer in HSS (MPV-Timer) for the MAP SRI query. MTAS timer should be set to larger value.
Takes effect: New session
MtasTimerMSec00000to002000DT
mtasTadsHssTimer = 500
This attribute defines the timer to be used when querying HSS for TADS information.
Value 0 means that no timer is used.


Takes effect: New session
MtasTimerSec00000to000300DT
mtasTadsLastSessionValidTime = 60
This attribute defines for how long time the access type (PS or CS) for the last terminated session is valid for the T-ADS procedure.

Takes effect: New session
MtasTadsMscTypeDT
mtasTadsMscType = ICS_ENHANCED_MSC
This parameter defines the type of MSC to be expected in the CS domain, if MSC is enhanced for ICS or not.

Deprecated: 

Takes effect: New session
MtasTadsMsrnCsiDT
mtasTadsMsrnCsi = TCSI_ALWAYS_SUPPRESSED_MAP_SRI
This attribute defines if CAMEL subscription procedure is enabled or not when retrieving the MSRN with MAP SRI.

Dependencies: Applicable only when mtasSccHssDeploymentMode=1
Takes effect: New session
MtasTadsMtrrDT
mtasTadsMtrr = NO_MTRR
This attribute defines if MTRR procedure for MT call is supported by SCC AS.

Dependencies: Applicable only when mtasSccHssDeploymentMode=1
Takes effect: New session
MtasTimerMSec00000to015000DT
mtasTadsNoResponseTimer = 8000
This attribute defines the timer for UE resources reservation to be used in T-ADS when PS contact is selected and T-ADS selection policy is configured to retry CS on PS contact failure or timeout. In this case the timer is used when waiting for 180 response from VoLTE UE on PS. If the call setup is either rejected or the timer expires, a secondary call setup attempt is done by breaking out the call to CS.

Dependencies: Must be greater than mtasTadsNotReachableTimer.
Takes effect: New session
MtasTimerMSec00000to015000DT
mtasTadsNotReachableTimer = 4500
This attribute defines the UE reachable timer to be used in T-ADS when PS contact is selected and T-ADS selection policy is configured to retry CS on PS contact failure or timeout. In this case the timer is used when waiting for UE reached response (183) from VoLTE UE on PS. If the call setup is either rejected or the timer expires, a secondary call setup attempt is done by breaking out the call to CS.

Dependencies: Must be less than mtasTadsNoResponseTimer.
Takes effect: New session
MtasDigitString0to16DT[0..1]
mtasTadsRoutingNumber
This attribute specifies the routing number to be added to the Request-URI rn parameter when breaking out to CS from T-ADS with prefix. Empty String resutls in no rn parameter added.

Dependencies: It is applicable only when mtasTadsBreakoutPolicy=0
Specification: Global E.164 number
Takes effect: New session
MtasTadsSelectionPolicyDT
mtasTadsSelectionPolicy = NO_RETRY
This attribute defines the policy to use in T-ADS when selecting terminating access domain.

Takes effect: New session
MtasCatSuppressToneDT
mtasTadsSuppressCsTone = ALWAYS_SUPPRESS
This attribute defines if an ICS indication is added in the call signaling towards CS over Mg interface in order to suppress the tone/announcement generation in MSC

Takes effect: New session
MtasTadsWifiAccessSupportDT
mtasTadsWifiAccessSupport = WIFI_ACCESS_NOT_SUPPORTED
This CM attribute is for controlling the T-ADS WiFi access support.

Dependencies: The parameter has effect only when mtasTadsAdministrativeState is set to Unlocked.
Takes effect: New session
MtasTimerMSec00000to015000DT
mtasTadsWiFiNoResponseTimer = 4000
This attribute defines the timer(in milliseconds) for UE resources reservation to be used in T-ADS when WiFi contact is selected and T-ADS selection policy is configured to retry CS on PS contact failure or timeout. In this case the timer is used when waiting for 180 response from VoLTE UE on WiFi. If the call setup is either rejected (except 480 caller preferences do not match) or the timer expires, a secondary call setup attempt is done by breaking out the call to CS.

Dependencies: Must be greater than mtasTadsWiFiNotReachableTimer
Takes effect: New session
MtasTimerMSec00000to015000DT
mtasTadsWiFiNotReachableTimer = 2000
This attribute defines the UE reachable timer(in milliseconds) to be used in T-ADS when WiFi contact is selected and T-ADS selection policy is configured to retry CS on PS contact failure or timeout. In this case the timer is used when waiting for UE reached response (183) from VoLTE UE on WiFi. If the call setup is either rejected (except 480 caller preferences do not match) or the timer expires, a secondary call setup attempt is done by breaking out the call to CS.

Dependencies: Must be less than mtasTadsWiFiNoResponseTimer.
Takes effect: New session
MtasTadsWiFiRetry480PhraseDT
mtasTadsWiFiRetry480Phrase = Not Registered
This attribute defines the text string that will be matched with the Reason phrase in the 480 response to an INVITE sent from TADS service with caller preferences for a VoLTE device on WiFi access (EPC integrated). In case the error response from S-CSCF is 480 and with a Reason phrase matching with this CM attribute (substring match), it is assumed the VoLTE UE has moved to LTE and it will trigger a retry towards VoLTE device on LTE (normal TADS VoLTE termination)

Dependencies: None
Takes effect: New session

  class MtasTads