Content for  TS 24.167  Word version:  18.1.0

The interior node contains an IMS communication service identifier of the IMS communication service not defined by 3GPP which is a 3GPP PS data off exempt service.

• Occurrence: One
• Format: chr
• Access Types: Get, Replace
• Values: an IMS communication service identifier as defined by TS 24.229.

The interior node contains an IMS communication service identifier of the IMS communication service not defined by 3GPP which is a 3GPP PS data off exempt service when the UE is in the VPLMN.

• Occurrence: ZeroOrOne
• Format: chr
• Access Types: Get, Replace
• Values: an IMS communication service identifier as defined by TS 24.229.

The SMSoIP_usage_policy leaf indicates the policy on usage of SMS over IP. If the SMS_Over_IP_Networks_Indication leaf specified in subclause 5.28 is set to the "0: Indicates that the SMS service is not to be invoked over the IP networks" value, then the SMSoIP_usage_policy leaf has no effect.

• Occurrence: ZeroOrOne
• Format: int
• Access Types: Get, Replace
• Values: 0, 1, 2
  0
  Indicates that SMS over IP is used only if voice over PS is available and only on the IP-CAN bearer that is used for the transport of SIP signalling associated with voice over PS.
  1
  Indicates that SMS over IP is used only if voice over PS is available and on any IP-CAN bearer.
  2
  Indicates that SMS over IP is used irrespective of whether voice over PS is available and on any IP-CAN bearer.

The optional Timer_Emerg-request leaf defines the operator's emergency request timeout policy.

• Occurrence: ZeroOrOne
• Format: int
• Access Types: Get, Replace
• Values: <The maximum time between sending of an initial INVITE request for an emergency session and receiving an 18x response to the INVITE request.>

The Timer_Emerg-request leaf is the maximum time between sending of an initial INVITE request for an emergency session and receiving an 18x response to the INVITE request. The timer value shall be given in seconds. The configurable value is between 5 and 15 seconds as defined in TS 24.229. The Timer_Emerg-request is an 8 bits unsigned integer.

The interior node contains configuration parameters for the IMS registration handling.

• Occurrence: ZeroOrOne
• Format: node
• Access Types: Get, Replace
• Values: N/A

The interior node describes the IMS registration handling policy part.

• Occurrence: ZeroOrOne
• Format: node
• Access Types: Get, Replace
• Values: N/A

The IMS registration handling policy part consists of a mandatory Stay_Registered_When_VoPS_Not_Supported child node indicating whether the UE stays registered when VoPS is not supported. If it is set to false, the Deregistration_Timer child node indicates the time duration in second before deregistration.

The leaf indicates whether the UE stays registered or not from IMS when moving to area where IMS Voice Over PS Session is not supported.

• Occurrence: One
• Format: bool
• Access Types: Get, Replace
• Values: 0, 1
  1
  Indicates that the UE maintains the registration as required for IMS services;
  0
  Indicates that the UE deregisters from IMS as defined in Annex B, Annex L, Annex U and Annex W in TS 24.229.

The Deregistration_Timer leaf indicates the time before deregistration on the UE when moving to area where IMS Voice Over PS Session is not supported.

• Occurrence: ZeroOrOne
• Format: int
• Access Types: Get, Replace
• Values: <The time a UE stays registered when VoPS_Not_Supported is received>

The use of this leaf is as defined in Annex B, Annex L, Annex U and Annex W in TS 24.229. The timer value shall be given in seconds. The Deregistration_Timer is a 16 bits unsigned integer.

The leaf indicates options for when a UE roaming in a VPLMN, is allowed to transfer the PDN connection providing access to IMS between EPC via WLAN and EPS.

• Occurrence: ZeroOrOne
• Format: int
• Access Types: Get, Replace
• Values: 0, 1, 2
  0
  Indicates that a UE roaming in a VPLMN and having an ongoing session, is not allowed to transfer the PDN connection providing access to IMS between EPC via WLAN and EPS.
  1
  Indicates that a UE roaming in a VPLMN and having an ongoing session, is allowed to transfer the PDN connection providing access to IMS between EPC via WLAN and EPS;
  2
  Indicates that a UE roaming in a VPLMN is not allowed to transfer the PDN connection providing access to IMS between EPC via WLAN and EPS using handover procedures, irrespective of if the UE is in a session or not.

This interior node describes the default QoS Flow usage restriction policy. The policy is used to control whether the UE is allowed to send media on the 5G QoS Flow associated with the default QoS rule.

• Occurrence: ZeroOrOne
• Format: node
• Access Types: Get, Replace
• Values: N/A