Section: 4.7.6.2 P-TMSI reallocation completion by the MS
Content: Upon receipt of the P-TMSI REALLOCATION COMMAND message, the MS shall store the routing area identifier (RAI) and the P-TMSI. Furthermore, the MS shall send a P-TMSI REALLOCATION COMPLETE message to the network. If a P-TMSI signature is present in the P-TMSI REALLOCATION COMMAND message, the MS shall store the new P-TMSI signature and shall if available delete the old P-TMSI signature. If no P-TMSI signature is present in the P-TMSI REALLOCATION COMMAND message, the old P-TMSI signature, if available, shall be kept. If the P-TMSI REALLOCATION COMMAND message contains the DCN-ID IE, then the MS shall store the included DCN-ID value together with the PLMN code of the registered PLMN in a DCN-ID list in a non-volatile memory in the ME as described in 3GPP TS 24.301[ Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3 ]  [120], annex C.