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SRVCC
From Wikipedia, the free encyclopedia
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Single Radio Voice Call Continuity (SRVCC) provides an interim solution for handing over VoLTE (Voice over LTE) calls, which use the IMS system, to be made to 2G/3G networks. The voice calls on LTE network are meant to be packet switched.[1] To make it inter operable with existing networks, these calls are to be handed over to Circuit switched calls in GSM/WCDMA networks. QoS is ensured by SRVCC operators for calls made.
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3GPP also standardized SRVCC to provide easy handovers from LTE network to GSM/UMTS network.
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