CALL SET-UP MANAGEMENT IN MOBILE RADIO COMMUNICATIONS NETWORK

摘要

A mobile radio communications device arranged to seek connection to network nodes of a mobile radio communications network and for receiving authentication signalling from nodes of networks having differing LTE service capabilities, like management and memory capabilities SIM/USIM, and arranged, upon receipt of a response signal from a node of a network exceeding the mobile radio communications device capability, to return a failure signal confirming the device capability is exceeded such that network signalling can proceed responsive to that failure calls, and the device proceeds to seek alternative to ensure connectivity within the circuit switched domain.