SRVCC in Mobile Network
SRVCC refers to "Single Radio Voice Call Continuity". It is a mechanism that allows seamless handover of voice calls, from the 4G/LTE network to the 2G/3G circuit-switched network.
SRVCC is used when the UE moves from 4G/LTE network coverage to 2G/3G network coverage, while the UE is having an ongoing voice call.
This ensures service continuity, and prevents the voice call from being dropped during the handover process.
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VoLTE (Voice over LTE) Introduction
While the UE attached to LTE network, the UE can initiate, or receive a voice or a video call. The
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What is an ‘EPS Bearer’ in LTE ?
During 'LTE attach' procedure, the network establishes this EPS Bearer between the UE and the PGW. The PGW assigns an
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QoS ‘Quality of Service’ in GPRS
QoS refers to 'Quality of Service'. After 'PDP context activation' procedure completes, a 'PDP context' shall exist on the MS,