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Content for  TS 23.401  Word version:  17.3.0

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4  Architecture model and conceptsWord‑p. 20

4.1  General conceptsWord‑p. 20

Local breakout of traffic via the visited PLMN is supported, when network policies and user subscription allow it. Local breakout may be combined with support for multiple simultaneous PDN connections, described in clause 5.10.
CIoT EPS Optimisations provide improved support of small data transfer, described in clause 4.11.

4.2  Architecture reference modelWord‑p. 21

4.2.1  Non-roaming architectureWord‑p. 21

Reproduction of 3GPP TS 23.401, Fig. 4.2.1-1: Non-roaming architecture for 3GPP accesses
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Reproduction of 3GPP TS 23.401, Fig. 4.2.1-2: Non-roaming architecture for 3GPP accesses. Single gateway configuration option
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