3GPP 24.501 v20.0.0 — the document's own text

5.2.3.2.2 NON-ALLOWED-SERVICE

Taught in 4. Inside TS 24.501, the document at the centre (CT1 — the group that writes what your phone says, overview).

The UE shall behave as specified in clause 5.3.5.

The UE in 5GMM-REGISTERED.NON-ALLOWED-SERVICE substate, if configured for eCall only mode as specified in 3GPP TS 31.102 [22], shall perform the eCall inactivity procedure at expiry of timer T3444 or timer T3445 (see clause 5.5.3).