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 17 |
iPhone 14 |
iPhone 11 |
|
iPhone 17 Pro |
iPhone 14 Plus |
iPhone 11 Pro |
|
iPhone 17 Pro Max |
iPhone 14 Pro |
iPhone 11 Pro Max |
|
iPhone Air |
iPhone 14 Pro Max |
iPhone Xs |
|
iPhone 16 |
iPhone 13 Pro Max |
iPhone Xs Max |
|
iPhone 16 Plus |
iPhone 13 |
iPhone X |
|
iPhone 16 Pro |
iPhone 13 Mini |
iPhone 8 |
|
iPhone 16 Pro Max |
iPhone 13 Pro |
iPhone 8 Plus |
|
iPhone 16e |
iPhone SE (2nd Gen) |
iPhone 7 |
|
iPhone 15 |
iPhone 12 |
iPhone 7 Plus |
|
iPhone 15 Plus |
iPhone 12 Mini |
iPhone 6 |
|
iPhone 15 Pro |
iPhone 12 Pro |
iPhone 6 Plus |
|
iPhone 15 Pro Max |
iPhone 12 Pro Max |
iPhone 6s |
|
iPhone 6s Plus |
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| iPhone SE | ||
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| Samsung Galaxy S25 | Samsung Galaxy A80 | Samsung Galaxy Z Flip 7 |
|
Samsung Galaxy S25+ |
Samsung Galaxy A71 | Samsung Galaxy Z Flip 6 |
| Samsung Galaxy S25 edge | Samsung Galaxy A70 | Samsung Galaxy Z Flip 5 |
| Samsung Galaxy S25 Ultra | Samsung Galaxy A60 | Samsung Galaxy Z Flip 4 |
|
Samsung Galaxy S24 |
Samsung Galaxy A56 | Samsung Galaxy Z Flip 3 |
| Samsung Galaxy S24+ | Samsung Galaxy A55 | Samsung Galaxy Z Flip |
| Samsung Galaxy S24 FE | Samsung Galaxy A54 | Samsung Galaxy Z Fold 7 |
| Samsung Galaxy S24 Ultra | Samsung Galaxy A52 | Samsung Galaxy Z Fold 6 |
| Samsung Galaxy S23 | Samsung Galaxy A51 | Samsung Galaxy Z Fold 5 |
| Samsung Galaxy S23+ | Samsung Galaxy A50s | Samsung Galaxy Z Fold 4 |
| Samsung Galaxy S23 FE | Samsung Galaxy A42 | Samsung Galaxy Z Fold 3 |
| Samsung Galaxy S23 Ultra | Samsung Galaxy A40s | Samsung Galaxy Z Fold 2 |
| Samsung Galaxy S22 | Samsung Galaxy A36 | Samsung Galaxy Fold |
| Samsung Galaxy S22+ | Samsung Galaxy A35 | Samsung Galaxy Tab S11 |
| Samsung Galaxy S22 Ultra | Samsung Galaxy A34 | Samsung Galaxy Tab S11 Ultra |
| Samsung Galaxy S21 | Samsung Galaxy A32 | Samsung Galaxy Tab S10+ |
| Samsung Galaxy S21+ | Samsung Galaxy A31 | Samsung Galaxy Tab S10 FE |
| Samsung Galaxy S21 Ultra | Samsung Galaxy A25 | Samsung Galaxy Tab S10 Lite |
| Samsung Galaxy S20 | Samsung Galaxy A23 | Samsung Galaxy Tab S10 Ultra |
| Samsung Galaxy S20+ | Samsung Galaxy A22 | Samsung Galaxy Tab S9 |
| Samsung Galaxy S20 FE | Samsung Galaxy A21s | Samsung Galaxy Tab S9 FE |
| Samsung Galaxy S20 Ultra | Samsung Galaxy A20 | Samsung Galaxy Tab S9+ |
| Samsung Galaxy S10 | Samsung Galaxy A20s | Samsung Galaxy Tab S8 Ultra |
| Samsung Galaxy S10e | Samsung Galaxy A16 | Samsung Galaxy Tab S8+ |
| Samsung Galaxy S10+ | Samsung Galaxy A15 | Samsung Galaxy Tab S8 |
| Samsung Galaxy S9 | Samsung Galaxy A14 | Samsung Galaxy Tab S7+ |
| Samsung Galaxy S9+ | Samsung Galaxy A13 | Samsung Galaxy Tab S7 FE |
| Samsung Galaxy S8 | Samsung Galaxy A12 | Samsung Galaxy Tab S7 LTE |
| Samsung Galaxy S8+ | Samsung Galaxy A9 | Samsung Galaxy Tab A7 10.4 |
| Samsung Galaxy S7 | Samsung Galaxy A8s | Samsung Galaxy Tab A11+ |
| Samsung Galaxy S7 edge | Samsung Galaxy A8+ | Samsung Galaxy NOTE 9 |
| Samsung Galaxy S6 | Samsung Galaxy A7 | Samsung Galaxy NOTE 8 |
| Samsung Galaxy S6 edge | Samsung Galaxy NOTE 20 Ultra | Samsung Galaxy NOTE 5 |
| Samsung Galaxy S6 edge+ | Samsung Galaxy NOTE 20 | Samsung Galaxy NOTE 4 |
| Samsung Galaxy S5 | Samsung Galaxy NOTE 10 Lite | Samsung Galaxy NOTE 3 LTE |
| Samsung Galaxy M34 | Samsung Galaxy NOTE 10 | |
| Samsung Galaxy C9 Pro | Samsung Galaxy NOTE 10+ | |
| Samsung Galaxy C7 Pro | ||
| Samsung Galaxy C7 | ||
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|
Huawei Pura 80 Ultra |
Huawei Pura 70 Ultra |
Huawei Nova 14 Pro |
|
Huawei Pura 80 Pro |
Huawei Pura 70 Pro |
Huawei Nova 14 |
|
Huawei Mate X6 |
Huawei Pura 70 |
Huawei Nova 13 Pro |
|
Huawei Mate X5 |
Huawei P60 Pro | Huawei Nova 13 |
|
Huawei Mate X3 |
Huawei P50 Pro | Huawei Nova 12S |
|
Huawei Mate XS 2 |
Huawei P50 Pocket | Huawei Nova 12l |
|
Huawei Mate XT |
Huawei P40 Pro+ | Huawei Nova 12 SE |
|
Huawei Mate 60 Pro |
Huawei P40 Pro | Huawei Nova 11i |
|
Huawei Mate 50 Pro |
Huawei P40 | Huawei Nova 10 Pro |
|
Huawei Mate 50 |
Huawei P30 Pro | Huawei Nova 10 SE |
| Huawei Mate 40 Pro |
Huawei P30 Lite |
Huawei Nova 10 |
|
Huawei Mate 30 Pro |
Huawei P30 | Huawei Nova 9 |
|
Huawei Mate 30 |
Huawei P20 Pro | Huawei Nova 7 SE |
|
Huawei Mate 20 Pro |
Huawei P20 Lite | Huawei Nova 7i |
|
Huawei Mate 20X |
Huawei P20 | Huawei Nova 7 |
|
Huawei Mate 20 |
Huawei Y9s |
Huawei Nova 5T |
|
Huawei Mate 10 Pro |
Huawei Y9 Prime (2019) | Huawei Nova 4 |
|
Huawei Mate 10 |
Huawei Y9 2019 | Huawei Nova 3i |
|
Huawei Mate 9 Pro |
Huawei Y7 Prime (2018) | Huawei Nova 3 |
|
Huawei Mate 9 |
Huawei Y7 Pro 2019 | Huawei Nova 2i |
| Huawei Y6P | ||
|
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||
| HONOR 400 | HONOR MAGIC 5 PRO | HONOR X6 |
| HONOR 400 LITE | HONOR MAGIC 6 | HONOR X6A |
| HONOR 400 PRO | HONOR MAGIC 6 PRO | HONOR X7A |
| HONOR 300 PRO | HONOR MAGIC 7 PRO | HONOR X7B |
| HONOR 200 | HONOR MAGIC 7 RSR | HONOR X8 LTE |
| HONOR 200 LITE | HONOR MAGIC 8 PRO | HONOR X8A |
| HONOR 200 PRO | HONOR MAGIC V2 | HONOR X9A |
| HONOR 200 SMART | HONOR MAGIC V2 PD | HONOR X9B |
| HONOR 70 | HONOR MAGIC V3 | HONOR X9C |
| HONOR 90 | HONOR MAGIC VS | HONOR X9C SMART |
| HONOR 90 LITE | HONOR MAGIC V5 | HONOR X9D |
| HONOR View 20 | HONOR PAD 10 5G | |
|
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||
| Xiaomi 15 ULTRA | Xiaomi 13 T PRO | Xiaomi 11T PRO |
| Xiaomi 15 | Xiaomi 13T | Xiaomi 11T |
| Xiaomi 14 ULTRA | Xiaomi 13 | Xiaomi 11i |
| Xiaomi 14 T Pro | Xiaomi 12T PRO | Xiaomi 11 |
| Xiaomi 14T | Xiaomi 12T | Xiaomi 11 ULTRA |
| Xiaomi 14 | Xiaomi 12 PRO | Xiaomi 10T PRO |
| Xiaomi 13 ULTRA | Xiaomi 12X | Xiaomi 10T |
| Xiaomi 13 LITE | Xiaomi 12 | Xiaomi 10T LITE |
| Xiaomi 13 PRO | Xiaomi 11 LITE | XIAOMI MIX FLIP |
|
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|
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| REDMI NOTE 14 PRO+ | REDMI NOTE 12 PRO+ | REDMI NOTE 10 |
| REDMI NOTE 14 PRO | REDMI NOTE 12 PRO | REDMI NOTE 9T |
| REDMI NOTE 14 | REDMI NOTE 12 | REDMI 9A |
| REDMI NOTE 13 PRO+ | REDMI NOTE 11 PRO+ | REDMI 7 |
| REDMI NOTE 13 PRO | REDMI NOTE 11 PRO | |
| REDMI NOTE 13 | ||
| REDMI NOTE 13C | ||
|
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| VIVO X300 | VIVO X100S | VIVO X FLIP |
| VIVO X300 PRO | VIVO X100S PRO | VIVO X FOLD5 |
| VIVO X200S | VIVO X100 | VIVO X FOLD3 |
| VIVO X200 Ultra | VIVO X100 PRO | VIVO X FOLD2 |
| VIVO X200 PRO | VIVO X100 Ultra | VIVO S18 |
| VIVO X70 | VIVO Y100 | |
| VIVO X70 Pro | VIVO Y78+ | |
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|
Sony Xperia 10 VII |
Sony Xperia 1 VII |
Sony Xperia XZ3 |
|
Sony Xperia 10 IV |
Sony Xperia 1 VI |
Sony Xperia XZ2 |
|
Sony Xperia 10 V |
Sony Xperia 1 V |
Sony Xperia XZ2 Compact |
|
Sony Xperia 10 VI |
Sony Xperia 1 IV |
Sony Xperia X Compact |
|
Sony Xperia 10 III |
Sony Xperia 1 III |
Sony Xperia X Performance |
|
Sony Xperia 10 II |
Sony Xperia 1 II |
Sony Xperia Z3 |
|
Sony Xperia 5 IV |
Sony Xperia 1 |
Sony Xperia Z3+ |
|
Sony Xperia 5 V |
Sony Xperia Pro I |
Sony Xperia Z5 |
|
Sony Xperia 5 III |
Sony Xperia X |
Sony Xperia Z5 Compact |
|
Sony Xperia 5 II |
Sony Xperia XZ |
Sony Xperia Z5 Premium |
|
Sony Xperia 5 |
Sony Xperia XZs |
Sony Xperia 10 |
|
Sony Xperia XZ Premium |
Sony Xperia 10 Plus |
|
|
Sony Xperia XZ1 |
||
|
Sony Xperia XZ1 Compact |
||
|
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| ASUS ROG Phone 9 | ASUS ROG Phone 6D | ASUS ZenFone 11 ULTRA |
| ASUS ROG Phone 9 Pro | ASUS ROG Phone 6 DIABLO | ASUS ZenFone 10 |
| ASUS ROG Phone 8 Pro | ASUS ROG Phone 6 | ASUS ZenFone 9 |
| ASUS ROG Phone 8 | ASUS ROG Phone 5s Pro | ASUS ZenFone 8 Flip |
| ASUS ROG Phone 7 ULTIMATE | ASUS ROG Phone 5s | ASUS ZenFone 8 |
| ASUS ROG Phone 7 | ASUS ROG Phone 5 | ASUS ZenFone 7 |
| ASUS ROG Phone 6D ULTIMATE | ASUS ROG Phone III | |
| ASUS ROG Phone 6D BATMAN | ASUS ROG Phone II | |
|
|
||
|
NOTHING PHONE 3 |
NOTHING PHONE 2 |
NOTHING PHONE 1 |
| NOTHING PHONE 3a | NOTHING PHONE 2a |
|
| NOTHING PHONE 3a Lite | NOTHING PHONE 2 PRO |
|
| NOTHING PHONE 3a Pro |
|
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|
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| NOKIA 8210 4G | NOKIA 8 | NOKIA 8 Sirocco |
| NOKIA G50 | NOKIA 8.3 | NOKIA 2.3 |
| NOKIA G60 | NOKIA 7.2 | NOKIA 215 |
| NOKIA X20 | NOKIA 7.1 | NOKIA 3210 |
| NOKIA X30 | NOKIA 6.1 | |
| NOKIA 9 | NOKIA 7 Plus | |
|
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||
|
LG G7+ |
LG V40 |
LG Q6+ |
|
LG G7 Fit |
LG V30+ |
LG K11 |
|
LG G6+ |
|
|
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LG G6 |
|
|
|
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||
|
HTC U12+ |
HTC U11+ |
HTC Desire 12+ |
|
|
|
|
| XIAOTIANCAI Z10 SMARTWATCH | XIAOTIANCAI Z8 SMARTWATCH | XIAOTIANCAI Z6 SMARTWATCH |
| XIAOTIANCAI Z9 SMARTWATCH | XIAOTIANCAI Z7 SMARTWATCH |
XIAOTIANCAI Z6A SMARTWATCH |
|
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| OPPO A5 Pro 5G | OPPO Find N5 5G | OPPO Reno 13 Pro 5G |
| OPPO A79 5G | OPPO Find N3 5G | OPPO Reno 13 F 5G |
| OPPO A78 5G | OPPO Find N3 Flip 5G | OPPO Reno 12 5G |
| OPPO A77 5G | OPPO Find N2 Flip | OPPO Reno 12 Pro 5G |
| OPPO Find X8 Pro | OPPO Reno 10 Pro 5G | |
|
OPPO Reno 10 Pro+ 5G |
||
| OPPO Reno 8 5G | ||
|
OPPO Reno 8 Pro 5G |
||
Note:
- The above mentioned devices are referred to those bought at CTM . For those that are not, please check with the relevant suppliers.
