Vodafone, Airtel Volte not working.

[bhushandeore29]

Model Name: Asus X00LDB
ZENFONE 4 SELFIE
SERIAL NO.H9AXJA025786K7L
Build no.15.0400.1910.518-0
Volte option not showing.

[raizada_saurabh]

I am also facing same issue.