Currently, the following handsets supports VoLTE:

Apple iPhone: iPhone 6s and newer models and running on iOS 15 and above

Huawei: P50 Pro, P50 Pocket, Mate Xs 2

Oppo: X3 Pro 5G, Reno 4 Pro, Reno 5 5G, Reno 6 Pro 5G, Reno 7 (Pro 5G, 5G, Z 5G), FIND X5 Pro 5G, Reno 8 (5G, Pro 5G)

Realme: C30

Samsung: Samsung Galaxy S21 (S21, S21+, S21 Ultra. FE 5G), Galaxy S22 (S22 5G, S22+ 5G, S22 Ultra 5G), Galaxy Tab (S7 FE 5G, A8, S8 5G, S8+ 5G, S8 Ultra 5G), Galaxy A23 5G, Galaxy A32 5G, Galaxy A33 5G, Galaxy A52 5G, Galaxy A52s 5G, Galaxy A53 5G, Galaxy Fold 3 5G, Galaxy Z Fold 4 5G, Galaxy Flip 3 5G, Galaxy Flip 4 5G, Galaxy A13 LTE, Galaxy A13 5G

vivo: X60, X60 Pro, X50e, X50 Pro. X70 5G, X70 Pro 5G, Y76 5G, V23 5G, X80 Pro 5G

Xiaomi: 11T 5G, 11T Pro 5G, 11 Lite 5G NE, Mi10T, Mi11 5G, Mi11 Lite 5G, 12 5G, 12 Pro 5G, Redmi Note 11 Pro 5G

We will be progressively updating with devices that support VoLTE, so keep a look out on this space!