Does 4G VoLTE require all bands ( Band 3 , Band 5 and Band 40) to operate?

[Android Central Question]

I have Huawei P Smart ( LA1) which supports band 3 and band 5 but not band 40.
I wish to use a JIO sim in it. Is it possible??

 

[Rukbat]

No, it just requires the band that Jio uses in your location. (Finding that out may be a problem, though.) From what I see they're using Band 40 pan-India (all across all of India), meaning that you'll be getting 2G voice. (Which isn't bad - most people can't tell the difference, even in a "one-after-the-other" test. 4G LTE gives the carrier room for more simultaneous calls, it doesn't give you better quality calls - and 2,300 MHz doesn't carry as well inside steel buildings, in mountainous terrain, etc.)