4.2.27 EF_SMSP (Short message service parameters)

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

If service n° 12 is "available", this file shall be present.

This EF contains values for Short Message Service header Parameters (SMSP), which can be used by the ME for user assistance in preparation of mobile originated short messages. For example, a service centre address will often be common to many short messages sent by the subscriber.

The EF consists of one or more records, with each record able to hold a set of SMS parameters. The first (or only) record in the EF shall be used as a default set of parameters, if no other record is selected.

To distinguish between records, an alpha‑identifier may be included within each record, coded on Y bytes.

The SMS parameters stored within a record may be present or absent independently. When a short message is to be sent from the UE, the parameter in the USIM record, if present, shall be used when a value is not supplied by the user.

Identifier: ‘6F42’		Structure: linear fixed			Optional
Record length: 28+Y bytes			Update activity: low
Access Conditions: READ PIN UPDATE PIN DEACTIVATE ADM ACTIVATE ADM
Bytes	Description			M/O		Length
1 to Y	Alpha‑Identifier			O		Y bytes
Y+1	Parameter Indicators			M		1 byte
Y+2 to Y+13	TP‑Destination Address			M		12 bytes
Y+14 to Y+25	TS‑Service Centre Address			M		12 bytes
Y+26	TP‑Protocol Identifier			M		1 byte
Y+27	TP‑Data Coding Scheme			M		1 byte
Y+28	TP‑Validity Period			M		1 byte

Storage is allocated for all of the possible SMS parameters, regardless of whether they are present or absent. Any bytes unused, due to parameters not requiring all of the bytes, or due to absent parameters, shall be set to ‘FF’.

‑ Alpha‑Identifier.

Contents:

Alpha Tag of the associated SMS‑parameter.

Coding:

see clause 4.4.2.3 (EF_ADN).

NOTE: The value of Y may be zero, i.e. the alpha‑identifier facility is not used. By using the command GET RESPONSE the ME can determine the value of Y.

‑ Parameter Indicators.

Contents:

each of the default SMS parameters which can be stored in the remainder of the record are marked absent or present by individual bits within this byte.

Coding:

allocation of bits:

bit number Parameter indicated.

1 TP‑Destination Address.

2 TS‑Service Centre Address.

3 TP‑Protocol Identifier.

4 TP‑Data Coding Scheme.

5 TP‑Validity Period.

6 reserved, set to 1.

7 reserved, set to 1.

8 reserved, set to 1.

Bit value Meaning.

0 Parameter present.

1 Parameter absent.

‑ TP‑Destination Address.

Contents and Coding:
as defined for SM‑TL address fields in TS 23.040 [6].

‑ TP‑Service Centre Address.

Contents and Coding:
as defined for RP‑Destination address Centre Address in TS 24.011 [10].

‑ TP‑Protocol Identifier.

Contents and Coding:
as defined in TS 23.040 [6].

‑ TP‑Data Coding Scheme.

Contents and Coding:
as defined in TS 23.038 [5].

‑ TP‑Validity Period.

Contents and Coding:
as defined in TS 23.040 [6] for the relative time format.