Vorlage 3a

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Technical requirements for the handover interfaces for the execution of telecommunications surveillance

The figure below depicts the format of the Calling Party Subaddress (example with 15-digit LIID).

octet bit

8 7 6 5 4 3 21

1 Calling party subaddress information element identifier 0 1 1 0 1 1 01

2 Length of calling party subaddress contents 0 0 0 1 0 0 11

3 ext. Type of subaddress Odd/eve Spare n 1 0 1 0 1 (odd) 0 00

4 LIID <2> LIID <1> (MSD)

5 LIID <4> LIID <3>

6 LIID <6> LIID <5>

7 LIID <8> LIID <7>

8 LIID <10> LIID <9>

9 LIID <12> LIID <11>

10 LIID <14> LIID <13>

11 Field separator LIID <15> (LSD

12 Field separator Direction: CC from Target = 1, CC to Target = 2

1 1 1 1 1 1 1/0 0/1 13 Spare Spare

18 Spare Spare

19 Service Parameter “TMR” according to ITU-T Rec. Q.763 (12/99) § 3.54 20 Service Parameter “BC” octet 3 according to ITU-T Rec. Q.931 (05/98) § 4.5.5 ext Coding standard Information transfer capability

1 00

21 Service Parameter “HLC” octet 4 according to ITU-T Rec. Q.931 (05/98) § 4.5.17 ext High layer characteristics identification

0/1

22 Mobile Bearer Service Code according to ETSI TS 129 002 V4.18.0 § 17.7.10 Public Land Mobile Network specific Format

Format for other Bearer Service Codes

unused group (see ETSI TS 129 002 V4.18.0 § rate (see ETSI TS 129 002 17.7.10) V4.18.0 § 17.7.10) 0

23 Mobile Teleservice Code according to ETSI TS 129 002 § 17.7.9

group (see ETSI TS 129 002 V4.18.0 specific service (see ETSI TS 129 002 § 17.7.9) V4.18.0

§ 17.7.9)

Figure 6-4: Calling Party Subaddress Information Element ETSI TS 133 108 V13.4.0

The Bearer Service Code allows two formats, the choice being a CSP option: a) the PLMN-specific bearer services, individually defined by each Home Public Land Mobile Network Operator, with codepoint for bits “4321” from 0 through F (Hex) with