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4G LTE Essentials

SRVCC: fallback to 3G/2G during a call

interactive3 min

Lesson 25 of 33

Card 1 of 617%

Warm-up: Guess before you learn

Try these first, even if you're not sure. Guessing primes your brain.

A VoLTE user leaves LTE but still has 3G. Drop or transfer?

After SRVCC, LTE returns. Rebuild the call on LTE or keep it on 3G?

SRVCC spans LTE packet and 3G circuit cores. What connects them?

Answer all 3to continue — it's OK to be wrong.

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