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The EPC (Evolved Packet Core) and IMS (IP Multimedia Subsystem) are key components in modern telecommunications networks.
EPC protocols include GTP (GPRS Tunneling Protocol), Diameter, and S1AP (S1 Application Protocol).
Message flows in EPC involve processes such as authentication, session establishment, and mobility management.
IMS protocols include SIP (Session Initiation Protocol), SDP (Session Description Protocol), ...
EPC outgoing call and IMS roaming call flow
EPC outgoing call flow involves the user equipment (UE), evolved packet core (EPC), and the public switched telephone network (PSTN)
IMS roaming call flow involves the UE, visited IMS network, home IMS network, and the PSTN
Both flows involve signaling and media flows between the different network elements
EPC outgoing call flow involves the use of the Session Initiation Protocol...
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posted on 30 Dec 2022
I applied via Naukri.com and was interviewed before Dec 2021. There were 3 interview rounds.
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