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What is LTE Circuit-Switched Fallback Explained about?

Circuit-switched fallback (CSFB) is an alternative to IMS and SRVCC for providing voice services to LTE users. With CSFB, LTE terminals register in the circuit-switched domain and temporarily switch between LTE and 2G/3G networks for circuit-switched voice calls in order to leverage existing 2G/3G voice networks and infrastructure. When a voice call is initiated or received, the terminal switches to 2G/3G, and then switches back to LTE once the call ends to resume data services. CSFB specifications cover ca

Author

Poorvi Vachhani

Language

EN