4.2.72 EF_NIA (Network’s Indication of Alerting)

31.1023GPPCharacteristics of the Universal Subscriber Identity Module (USIM) applicationRelease 17TS

If service n°56 is "available", this file shall be present.

This EF contains categories and associated text related to the Network’s indication of alerting in the MS service defined in TS 22.101 [24].

Identifier: ‘6FD3’		Structure: linear fixed			Optional
Record length : X+1 bytes			Update activity: low
Access Conditions: READ PIN UPDATE ADM DEACTIVATE ADM ACTIVATE ADM
Bytes	Description			M/O		Length
1	Alerting category			M		1 byte
2 to X+1	Informative text			M		X bytes

‑ Alerting category

Contents:

category of alerting for terminating traffic.

Coding:

according to TS 24.008 [9]. Value ‘FF’ means that no information on alerting category is available.

‑ Informative text

Contents:

text describing the type of terminating traffic associated with the category.

Coding:

see the coding of the Alpha Identifier item of the EF_ADN. The maximum number of characters for this informative text is indicated in TS 22.101 [24].