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Why SRVCC is send in the initial context setup request message for an UE?

+4 votes

and what eNodeB does, when it receives SRVCC IE in the initial context setup request message ?

posted Oct 14, 2014 by Sandeep Otari

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1 Answer

+1 vote

I know little bit,
SRVCC stands for Single Radio Voice Call Continuity.This information sending in initial context setup request message is just to inform eNB that handover between VoIP over IMS in LTE and WCDMA is possible .So during VOIP cal if UE moves out of LTE coverage area and neighbor is UMTS then eNB will notify to LTE core network/IMS.So voice call be continued.

answer Oct 14, 2014 by Bheemappa G
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+3 votes

Need clarity on following items:
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2. Is the ECGI/TAI constructed based on the primary plmn (PLMN broadcasted in 0th index in SIB1 ) or based on the UE selected PLMN ?

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