VoLTE

 

What is VoLTE

VoLTE  (Voice Over LTE) is the voice calls service transmitted via 4G network, you can enjoy more stable & high-speed voice call! CTM customers can enjoy FREE VoLTE Service by holding a handset that has activated the VoLTE function, to enjoy better call experience!

 

Advantages of VoLTE

1.      Stable connection, better voice quality

2.      Fast connection, shorten call waiting time

3.      Two-line operation, you can use data to online while making a call

 

How to use VoLTE

1.          Need a mobile phone that supports VoLTE function

2.          Upgrade the phone system to the latest version

3.          Activate the phone's VoLTE function

 

VoLTE iOS Usage Guideline

1.      Click " Mobile " in " Settings "

2.      Click  " Primary "

3.      Click " Voice & Data "

4.      Activate " VoLTE "

 

VoLTE Android Usage Guideline

1.      Click " SIM cards & mobile networks " in " Settings "

2.      Click " CTM "

3.      Activate " Use VoLTE"

For more Android models’ setting and activation procedure, please refer to detail information

 

Notes:

- Please update your mobile system to the latest version, and refer to activation method above.

- When 5G mobiles are in 5G mode and some 4G mobiles have already activated VoLTE by default, there is no need to manually activate VoLTE. For mobiles that have not been set for automatic activation, you can refer to the above settings and activation methods.

- The activation method here is for your reference. According to different models and software version, the actual screen and procedure may be slightly different.

 

Handsets support VoLTE

iPhone 15 Pro Max

iPhone SE (2nd Gen)

iPhone X

iPhone 15 Pro

iPhone 12 Pro Max

iPhone 8 Plus

iPhone 15 Plus

iPhone 12 Pro

iPhone 8

iPhone 15

iPhone 12 Mini

iPhone 7 Plus

iPhone 14 Pro Max

iPhone 12

iPhone 7

iPhone 14 Pro

iPhone 11 Pro Max

iPhone 6

iPhone 14 Plus

iPhone 11 Pro

iPhone 6s

iPhone 14

iPhone 11

iPhone 6 Plus

iPhone 13 Pro Max

iPhone Xs Max

iPhone 6s Plus

iPhone 13 Pro

iPhone Xs

iPhone SE

iPhone 13 Mini

  

iPhone 13

  

 

Samsung Galaxy S24

Samsung Galaxy A80

Samsung Galaxy Z Flip 5

Samsung Galaxy S24 Ultra

Samsung Galaxy A71

Samsung Galaxy Z Flip 4

Samsung Galaxy S24+

Samsung Galaxy A70

Samsung Galaxy Z Flip 3

Samsung Galaxy S23

Samsung Galaxy A60

Samsung Galaxy Z Flip

Samsung Galaxy S23 FE

Samsung Galaxy A55 

Samsung Galaxy Z Fold 5

Samsung Galaxy S23 Ultra

Samsung Galaxy A54 

Samsung Galaxy Z Fold 4

Samsung Galaxy S23+

Samsung Galaxy A52

Samsung Galaxy Z Fold 3

Samsung Galaxy S22

Samsung Galaxy A51

Samsung Galaxy Z Fold 2

Samsung Galaxy S22+

Samsung Galaxy A50s

Samsung Galaxy Fold

Samsung Galaxy S22 Ultra

Samsung Galaxy A42

Samsung Galaxy Tab A7 10.4

Samsung Galaxy S21 Ultra

Samsung Galaxy A40s

Samsung Galaxy Tab S8 Ultra

Samsung Galaxy S21+

Samsung Galaxy A35 

Samsung Galaxy Tab S8+

Samsung Galaxy S21

Samsung Galaxy A34 

Samsung Galaxy Tab S8

Samsung Galaxy S20 Ultra

Samsung Galaxy A32

Samsung Galaxy Tab S7+

Samsung Galaxy S20+

Samsung Galaxy A31

Samsung Galaxy Tab S7 FE

Samsung Galaxy S20 FE

Samsung Galaxy A25 

Samsung Galaxy Tab S7 LTE

Samsung Galaxy S20

Samsung Galaxy A23 

Samsung Galaxy NOTE 20 Ultra

Samsung Galaxy S10e

Samsung Galaxy A22

Samsung Galaxy NOTE 20

Samsung Galaxy S10

Samsung Galaxy A21s

Samsung Galaxy NOTE 10 Lite

Samsung Galaxy S10+

Samsung Galaxy A20s

Samsung Galaxy NOTE 10

Samsung Galaxy S9

Samsung Galaxy A20

Samsung Galaxy NOTE 10+

Samsung Galaxy S9+

Samsung Galaxy A15 

Samsung Galaxy NOTE 9

Samsung Galaxy S8

Samsung Galaxy A14 

Samsung Galaxy NOTE 3 LTE

Samsung Galaxy S8+

Samsung Galaxy A13 

Samsung Galaxy NOTE 4

Samsung Galaxy S7

Samsung Galaxy A12

Samsung Galaxy NOTE 5

Samsung Galaxy S7 edge

Samsung Galaxy A9

Samsung Galaxy NOTE 8

Samsung Galaxy S6

Samsung Galaxy A8s

Samsung Galaxy C9 Pro

Samsung Galaxy S6 edge

Samsung Galaxy A8+

Samsung Galaxy C7 Pro

Samsung Galaxy S6 edge+

Samsung Galaxy A7

Samsung Galaxy C7

Samsung Galaxy S5

Samsung Galaxy M34 

 

 

Huawei Pura 70 Ultra

Huawei P60 Pro

Huawei Nova 12S

Huawei Pura 70 Pro

Huawei P50 Pro

Huawei Nova 12l

Huawei Pura 70

Huawei P50 Pocket

Huawei Nova 12 SE

Huawei Mate X5

Huawei P40 Pro+

Huawei Nova 11i

Huawei Mate X3

Huawei P40 Pro

Huawei Nova 10 Pro

Huawei Mate XS 2

Huawei P40

Huawei Nova 10 SE

Huawei Mate 60 Pro

Huawei P30 Pro

Huawei Nova 10

Huawei Mate 50 Pro

Huawei P30

Huawei Nova 9

Huawei Mate 50

Huawei P30 Lite

Huawei Nova 7

Huawei Mate 40 Pro

Huawei P20 Pro

Huawei Nova 7 SE

Huawei Mate 30 Pro

Huawei P20

Huawei Nova 7i

Huawei Mate 30

Huawei P20 Lite

Huawei Nova 5T

Huawei Mate 20 Pro

Huawei Y6P

Huawei Nova 4

Huawei Mate 20

Huawei Y9s

Huawei Nova 3i

Huawei Mate 20X

Huawei Y9 Prime (2019)

Huawei Nova 3

Huawei Mate 10

Huawei Y7 Prime (2018)

Huawei Nova 2i

Huawei Mate 10 Pro

Huawei Y9 2019

 

Huawei Mate 9

Huawei Y7 Pro 2019

 

Huawei Mate 9 Pro

  

 

HONOR 90

HONOR MAGIC V2

HONOR X8A

HONOR 90 LITE

HONOR MAGIC V2 PD

HONOR X7A

HONOR 70

HONOR MAGIC VS

HONOR X7B

HONOR MAGIC 6

HONOR X9A

HONOR X6A

HONOR MAGIC 6 PRO

HONOR X9B

HONOR X6

HONOR MAGIC 5 PRO

HONOR X8 LTE

HONOR View 20

 

Xiaomi 14 ULTRA

Xiaomi 12T

Xiaomi 11i

Xiaomi 14

Xiaomi 12T PRO

Xiaomi 11

Xiaomi 13

Xiaomi 12

Xiaomi 11 ULTRA

Xiaomi 13 LITE

Xiaomi 12X

Xiaomi 10T PRO

Xiaomi 13 PRO

Xiaomi 12 PRO

Xiaomi 10T

Xiaomi 13 ULTRA

Xiaomi 11T PRO

Xiaomi 10T LITE

Xiaomi 13T

Xiaomi 11T

 

Xiaomi 13T PRO

Xiaomi 11 LITE

 

 

 

 

REDMI NOTE 13 PRO+

REDMI NOTE 11 PRO+

REDMI 9A

REDMI NOTE 13 PRO

REDMI NOTE 11 PRO

REDMI 7

REDMI NOTE 13 

REDMI NOTE 10

REDMI 7A

REDMI NOTE 12 PRO+

REDMI NOTE 9T

 

REDMI NOTE 12 PRO

REDMI NOTE 7

 

REDMI NOTE 12

REDMI NOTE 6A

 

 

VIVO X100S

VIVO X27

VIVO S18

VIVO X100S PRO

VIVO X23

VIVO Y100

VIVO X100

VIVO X FLIP

VIVO Y97

VIVO X100 PRO

VIVO X FOLD 3

VIVO Y93

VIVO X70

VIVO X FOLD2

VIVO Y78+

VIVO X70 Pro

  

 

Sony Xperia 10 IV 

Sony Xperia 1 V

Sony Xperia XZ2

Sony Xperia 10 V

Sony Xperia 1 III

Sony Xperia XZ2 Compact

Sony Xperia 10 VI

Sony Xperia 1 II

Sony Xperia X Compact

Sony Xperia 10 III

Sony Xperia 1

Sony Xperia X Performance

Sony Xperia 10 II

Sony Xperia Pro I

Sony Xperia Z3

Sony Xperia 5 IV

Sony Xperia X

Sony Xperia Z3+

Sony Xperia 5 V

Sony Xperia XZ

Sony Xperia Z5

Sony Xperia 5 III

Sony Xperia XZs

Sony Xperia Z5 Compact

Sony Xperia 5 II

Sony Xperia XZ Premium

Sony Xperia Z5 Premium

Sony Xperia 5

Sony Xperia XZ1

Sony Xperia 10

Sony Xperia 1 IV 

Sony Xperia XZ1 Compact

Sony Xperia 10 Plus

Sony Xperia 1 VI

Sony Xperia XZ3

 

 

ASUS ROG Phone 8 Pro

ASUS ROG Phone 6 DIABLO

ASUS ZenFone 11 ULTRA

ASUS ROG Phone 8

ASUS ROG Phone 6

ASUS ZenFone 10

ASUS ROG Phone 7 ULTIMATE

ASUS ROG Phone 5s Pro

ASUS ZenFone 9

ASUS ROG Phone 7

ASUS ROG Phone 5s

ASUS ZenFone 8 Flip

ASUS ROG Phone 6D ULTIMATE

ASUS ROG Phone 5

ASUS ZenFone 8 

ASUS ROG Phone 6D BATMAN

ASUS ROG Phone III

ASUS ZenFone 7

ASUS ROG Phone 6D

ASUS ROG Phone II

 

 

NOTHING PHONE 2a

NOTHING PHONE 2

NOTHING PHONE 1

 

NOKIA 8210 4G

NOKIA 9

NOKIA 6.1

NOKIA G50 

NOKIA 8

NOKIA 7 Plus

NOKIA G60 

NOKIA 8.3

NOKIA 8 Sirocco

NOKIA X20

NOKIA 7.2

NOKIA 2.3

NOKIA X30 

NOKIA 7.1

 

 

LG G7+

LG G6+

LG V30+

LG G7 Fit

LG G6

LG Q6+

 

LG V40

LG K11

 

HTC U12+

HTC U11+

HTC Desire 12+

 

 

 

XIAOTIANCAI Z7 SMARTWATCH