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Methods and apparatuses for enabling an Single Radio Voice Call Continuity (SRVCC) access transfer of an emergency call back session
Methods and apparatuses for enabling an Single Radio Voice Call Continuity (SRVCC) access transfer of an emergency call back session
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机译:用于实现紧急回叫会话的单无线电语音呼叫连续性(SRVCC)访问转移的方法和装置
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摘要
According to an aspect of the present invention there is provided a method of enabling Single Radio Voice Call Continuity, SRVCC, access transfer for an emergency call back IP Multimedia Subsystem, IMS, session to a user equipment, UE. The method comprises including a session continuity function in a signalling path of a request for establishment of a call back session intended for the UE, and if access transfer of the call back session from a packet switched access to a circuit switched access is required, implementing SRVCC access transfer of the call back session using the session continuity function.
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