Section: 4.7.4.1.2 MS initiated GPRS detach procedure completion for GPRS services only
Content: When the DETACH REQUEST message is received by the network, the network shall send a DETACH ACCEPT message to the MS, if the detach type IE value indicates that the detach request has not been sent due to switching off. If switching off was indicated, the procedure is completed when the network receives the DETACH REQUEST message. The network and the MS shall deactivate the PDP contexts, the MBMS contexts and deactivate the logical link(s), if any. The MS is marked as inactive in the network for GPRS services; state GMM-DEREGISTERED is entered in the MS and the network. In Iu mode, if the detach has been sent due to switching off, then the network shall release the resources in the lower layers for this MS (see 3GPP TS 25.331[ None ]  [23c]). NOTE: When the DETACH REQUEST message is received by the network, and if the detach type IE value indicates that the detach is not due to power off, the authentication and ciphering procedure as well as the identification procedure may be performed. If the MS supports S1 mode and operates in MS operation mode A or B , the MS shall disable the E-UTRA capability (see 3GPP TS 24.301[ Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3 ]  [120]).