8.11 MSISDN
29.2743GPP3GPP Evolved Packet System (EPS)Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C)Release 18Stage 3TS
MSISDN is transferred via GTP tunnels. The sending entity copies the value part of the MSISDN into the Value field of the MSISDN IE. MSISDN is defined in 3GPP TS 23.003 [2].
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Bits |
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Octets |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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1 |
Type = 76 (decimal) |
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2 to 3 |
Length = n |
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4 |
Spare |
Instance |
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5 |
Number digit 2 |
Number digit 1 |
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6 |
Number digit 4 |
Number digit 3 |
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… |
… |
… |
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n+4 |
Number digit m |
Number digit m-1 |
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Figure 8.11-1: MSISDN
Octets 5 to (n+4) represent the MSISDN value is in international number format as described in ITU-T Rec E.164 [25] and 3GPP TS 29.002 [41]. MSISDN value contains only the actual MSISDN number (does not contain the "nature of address indicator" octet, which indicates "international number" as in 3GPP TS 29.002 [41]) and is encoded as TBCD digits, i.e. digits from 0 through 9 are encoded "0000" to "1001". When there is an odd number of digits, bits 8 to 5 of the last octet are encoded with the filler "1111".