METHOD AND APPARATUSES FOR SELECTING VOICE OVER LTE OR CS FALLBACK FOR VOICE SESSIONS

摘要

A method (100) for use in a Mobility Management Entity an MME in an LTE system comprising (110) obtaining and determining the capability of a mobile terminal in the LTE system regarding the mobile terminal s capability for handover over from the LTE system to a 2G and/or a 3G system comparing (115) the mobile terminal s capability and the LTE system s capability for Single Radio Voice Channel Continuity SRVCC handover over from the LTE system to a 2G and/or a 3G system and depending on the outcome of the comparison instructing (120 125) the mobile terminal to use Voice over LTE VoLTE or Circuit Switched CS fallback when initiating voice sessions.