As 3G is being switched off across much of the UK, you’ll need VoLTE (Voice over 4G) to keep making calls using the 4G network.
VoLTE allows you to make clearer, faster calls over 4G, so you can stay connected as 3G is phased out. Check below to see if your phone supports VoLTE.
Apple - 
iPhone 6 ✅
iPhone 6 Plus ✅
iPhone 6S ✅
iPhone 6S Plus ✅
iPhone 7 ✅
iPhone 7 Plus ✅
iPhone 8 ✅
iPhone 8 Plus ✅
iPhone SE (2) ✅
iPhone X ✅
iPhone XR ✅
iPhone XS ✅
iPhone XS Max ✅
iPhone 11 ✅
iPhone 11 Plus ✅
iPhone 11 Pro ✅
iPhone 12 ✅
iPhone 12 Mini ✅
iPhone 12 Pro ✅
iPhone 12 Pro Max ✅
iPhone 13 ✅
iPhone 13 Mini ✅
iPhone 13 Pro ✅
iPhone 13 Pro Max ✅
iPhone 14 ✅
iPhone 14 Plus ✅
iPhone 14 Pro ✅
iPhone 14 Pro Max ✅
iPhone 15 ✅
iPhone 15 Plus ✅
iPhone 15 Pro ✅
iPhone 15 Pro Max ✅
iPhone 16 ✅
iPhone 16 Plus ✅
iPhone 16 Pro ✅
iPhone 16 Pro Max ✅
iPhone 16e ✅
iPhone 17 Air ✅
iPhone 17 ✅
iPhone 17 Pro ✅
iPhone 17 Pro Max ✅
Fairphone - 
Fairphone 5 ✅
Google - 
Fold ✅
Pixel 6 ✅
Pixel 6 Pro ✅
Pixel 6a ✅
Pixel 7 ✅
Pixel 7 Pro ✅
Pixel 7a ✅
Pixel 8 ✅
Pixel 8 Pro ✅
Pixel 8a ✅
Pixel 9 ✅
Pixel 9 Pro ✅
Pixel 9 Pro XL ✅
Pixel 9 Pro Fold ✅
Pixel 9a ✅
Pixel 10 ✅
Pixel 10 Pro ✅
Pixel 10 Pro XL ✅
Pixel 10 Pro Fold ✅
Honor - 
X6 ✅
X8 ✅
70 ✅
70 Lite ✅
90 ✅
90 Lite ✅
90 Smart ✅
200 ✅
200 Lite ✅
200 Lite 5G ✅
200 Pro ✅
400 Lite ✅
400 Pro ✅
Magic 4 Lite ✅
Magic 4 Pro ✅
Magic 5 Lite ✅
Magic 5 Pro ✅
Magic 6 Lite ✅
Magic 6 Pro ✅
Magic 7 Lite ✅
Magic 7 Pro ✅
Magic V2 ✅
Magic V3 ✅
Magic V5 ✅
Magic Vs ✅
Huawei - 
P40 Pro ✅
P40 Pro Lite ✅
Motorola - 
E6 Plus ✅
G8 Plus ✅
G8 Power ✅
G04 4G ✅
G05 4G ✅
G06 4G ✅
G34 5G ✅
G35 5G ✅
G82 5G ✅
Edge 40 ✅
Edge 50 ✅
Edge 50 Neo ✅
Edge 50 Pro ✅
Edge 60 Pro ✅
Edge 70 ✅
Razr 40 ✅
Razr 40 Ultra ✅
Razr 50 Ultra ✅
Razr 60 ✅
Razr 60 Ultra ✅
Nokia - 
C02 ✅
G22 ✅
Samsung - 
A03 ✅
A03s ✅
A04s ✅
A07 ✅
A10 ✅
A12 ✅
A13 ✅
A14 4G ✅
A14 5G ✅
A15 4G ✅
A16 4G ✅
A16 5G ✅
A17 5G ✅
A20e ✅
A21s ✅
A22 5G ✅
A23 5G ✅
A25 5G ✅
A26 5G ✅
A34 5G ✅
A35 5G ✅
A36 5G ✅
A52s 5G ✅
A53 5G ✅
A54 5G ✅
A55 5G ✅
A56 5G ✅
A70 ✅
A71 ✅
A90 ✅
Flip 3 ✅
Flip 4 ✅
Flip 5 ✅
Flip 6 ✅
Flip 7 ✅
Flip 7 FE ✅
Fold 3 ✅
Fold 4 ✅
Fold 5 ✅
Fold 6 ✅
Fold 7 ✅
Note 8 ✅
Note 9 ✅
Note 10 ✅
Note 10+ 5G ✅
Note 20 4G ✅
Note 20 5G ✅
Note 20 Ultra 5G ✅
S7 ✅
S7 Edge ✅
S8 ✅
S8+ ✅
S9 ✅
S9+ ✅
S10 ✅
S10e ✅
S10+ ✅
S10 5G ✅
S20 ✅
S20 5G ✅
S20 FE ✅
S20 FE 5G ✅
S20+ 5G ✅
S20 Ultra 5G ✅
S21 FE 5G ✅
S21+ 5G ✅
S21 Ultra 5G ✅
S22 5G ✅
S22+ 5G ✅
S22 Ultra 5G ✅
S23 5G ✅
S23+ 5G ✅
S23 Ultra 5G ✅
S24 5G ✅
S24 FE 5G ✅
S24+ 5G ✅
S24 Ultra 5G ✅
S25 5G ✅
S25 Edge 5G ✅
S25 FE 5G ✅
S25+ 5G ✅
S25 Ultra 5G ✅
Sony - 
Xperia 1 IV ✅
Xperia 5 IV ✅
Xperia 10 IV ✅
Xperia 10 III ✅
Xperia 10 ✅
Xperia XA2 ✅
Xiaomi - 
Mi 12 5G ✅
Mi 12 Lite ✅
Mi 12 Lite 5G ✅
Mi 12 Pro ✅
Mi 12 Pro 5G ✅
Mi 12T 5G ✅
Mi 12T Pro 5G ✅
Mi 13 Pro 5G ✅