With reference to communication technologies, what is/are the difference/differences between LTE (Long-Term Evolution) and VoLTE (Voice over Long-Term Evolution)?
- 1.LTE is commonly marketed as 3G and VoLTE is commonly marketed as advanced 3G.
- 2.LTE is data-only technology and VoLTE is voice-only technology.
Select the correct answer using the code given below.
Show answer
Answer: D. Statement 1 is wrong: LTE is marketed as 4G, not 3G. Statement 2 is wrong: LTE carries data (voice was handled by falling back to older networks), and VoLTE is a way to carry voice calls as data over the LTE network; it is not a voice-only technology. So neither.
Watch for: Statement 2 sounds like a neat contrast, but VoLTE runs on the same data network.
Why the other options are wrong
- A. Wrong because LTE is marketed as 4G.
- B. Wrong because VoLTE is voice carried over the LTE data network, not voice-only.
- C. Wrong because both statements are false.
Source to check: Telecom Regulatory Authority of India (TRAI) consultation papers on 4G/VoLTE; Department of Telecommunications website
Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.