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 " Mobile Data Options "
3. Click " Voice & Data " to activate " VoLTE "
VoLTE Android Usage Guideline
1. Click " Connection " in " Settings "
2. Click " Mobile networks "
3. Activate " VoLTE calls SIM 1"
Handsets support VoLTE：
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- iPhone 13 Pro Max |
- iPhone 11 Pro Max |
- iPhone 7 Plus |
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- iPhone 13 Pro |
- iPhone 11 Pro |
- iPhone 7 |
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- iPhone 13 Mini |
- iPhone 11 |
- iPhone 6 |
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- iPhone 13 |
- iPhone Xs Max |
- iPhone 6s |
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- iPhone SE (2nd Gen) |
- iPhone Xs |
- iPhone 6 Plus |
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- iPhone 12 Pro Max |
- iPhone X |
- iPhone 6s Plus |
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- iPhone 12 Pro |
- iPhone 8 Plus |
- iPhone SE |
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- iPhone 12 Mini |
- iPhone 8 |
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- iPhone 12 |
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- Huawei Mate 40 Pro |
- Huawei Mate 20 Pro |
- Huawei Y6P |
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- Huawei Nova 9 |
- Huawei Mate 20 |
- Huawei Y9s |
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- Huawei Nova 7 |
- Huawei Mate 20X |
- Huawei Y9 Prime (2019) |
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- Huawei Mate 30 Pro |
- Huawei Mate 30 |
- Huawei Y7 Prime (2018) |
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- Huawei Mate 30 |
- Huawei P50 Pro |
- Huawei Y9 2019 |
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- Huawei Nova 7 SE (5G) |
- Huawei P50 Pocket |
- Huawei Y7 Pro 2019 |
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- Huawei Nova 7i |
- Huawei P40 Pro+ (5G) |
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- Huawei Nova 2i |
- Huawei P40 Pro (5G) |
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- Huawei Nova 3i |
- Huawei P40 |
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- Huawei Nova 3 |
- Huawei P30 Pro |
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- Huawei Nova 4 |
- Huawei P30 |
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- Huawei Nova 5T |
- Huawei P30 Lite(256G) |
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- Huawei Hornor View 20 |
- Huawei P30 Lite |
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- Huawei Mate 10 |
- Huawei P20 Pro |
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- Huawei Mate 10 Pro |
- Huawei P20 |
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- Huawei Mate 9 |
- Huawei P20 Lite |
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- Huawei Mate 9 Pro |
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- Samsung Galaxy S20 FE |
- Samsung Galaxy Z Flip 3 |
- Samsung Galaxy A22 5G |
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- Samsung Galaxy A42 5G |
- Samsung Galaxy Z Flip 5G |
- Samsung Galaxy A31 |
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- Samsung Galaxy A12 |
- Samsung Galaxy Z Flip |
- Samsung Galaxy A51 |
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- Samsung Galaxy Z Fold 3 |
- Samsung Galaxy S22 5G |
- Samsung Galaxy A71 |
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- Samsung Galaxy Z Fold 2 |
- Samsung Galaxy S22+ 5G |
- Samsung Galaxy A21s |
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- Samsung Galaxy Fold |
- Samsung Galaxy S22 Ultra 5G |
- Samsung Galaxy A20s |
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- Samsung Galaxy Tab A7 10.4 |
- Samsung Galaxy S21 Ultra 5G |
- Samsung Galaxy A50s |
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- Samsung Galaxy Tab S8 Ultra 5G |
- Samsung Galaxy S21+ 5G |
- Samsung Galaxy A20 |
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- Samsung Galaxy Tab S8+ 5G |
- Samsung Galaxy S21 5G |
- Samsung Galaxy A40s |
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- Samsung Galaxy Tab S8 5G |
- Samsung Galaxy S20 Ultra |
- Samsung Galaxy A60 |
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- Samsung Galaxy Tab S7+ 5G |
- Samsung Galaxy S20+ |
- Samsung Galaxy A70 |
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- Samsung Galaxy Tab S7 FE 5G |
- Samsung Galaxy S20 |
- Samsung Galaxy A80 |
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- Samsung Galaxy Tab S7 LTE |
- Samsung Galaxy S10e |
- Samsung Galaxy A8+ |
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- Samsung Galaxy Note 20 Ultra |
- Samsung Galaxy S10 |
- Samsung Galaxy A8s |
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- Samsung Galaxy Note 20 |
- Samsung Galaxy S10+ |
- Samsung Galaxy A9 (2018) |
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- Samsung Galaxy Note 10 Lite |
- Samsung Galaxy S9 |
- Samsung Galaxy A7 (2018) |
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- Samsung Galaxy Note 10 |
- Samsung Galaxy S9+ |
- Samsung Galaxy C7 |
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- Samsung Galaxy Note 10+ |
- Samsung Galaxy S8 |
- Samsung Galaxy C7 Pro |
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- Samsung Galaxy Note 9 |
- Samsung Galaxy S8+ |
- Samsung Galaxy C9 Pro |
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- Samsung Galaxy Note 3 LTE |
- Samsung Galaxy S7 |
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- Samsung Galaxy Note 4 |
- Samsung Galaxy S7 edge |
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- Samsung Galaxy Note 5 |
- Samsung Galaxy S6 |
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- Samsung Galaxy Note 8 |
- Samsung Galaxy S6 edge |
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- Samsung Galaxy S6 edge+ |
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- Samsung Galaxy S5 |
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- Samsung Galaxy A52 5G |
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- Samsung Galaxy A32 5G |
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- Sony Xperia 5 III |
- Sony Xperia XZ Premium |
- Sony Xperia X Compact |
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- Sony Xperia 5 II |
- Sony Xperia XZ1 |
- Sony Xperia X Performance |
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- Sony Xperia 10 III |
- Sony Xperia XZ1 Compact |
- Sony Xperia Z3 |
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- Sony Xperia 10 II |
- Sony Xperia XZ3 |
- Sony Xperia Z3+ |
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- Sony Xperia 5 |
- Sony Xperia XZ2 |
- Sony Xperia Z5 |
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- Sony Xperia Pro I |
- Sony Xperia XZ2 Compact |
- Sony Xperia Z5 Compact |
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- Sony Xperia 1 III |
- Sony Xperia Z5 Premium |
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- Sony Xperia 1 II |
- Sony Xperia 10 |
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- Sony Xperia 1 |
- Sony Xperia 10 Plus |
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- Sony Xperia X |
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- Sony Xperia XZ |
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- Sony Xperia XZs |
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- Vivo X23 |
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- Vivo X27 |
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- Vivo X70 Pro |
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- Vivo X70 |
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- Vivo Y97 |
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- Vivo Y93 |
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- Redmi Note 10 |
- Redmi 7 |
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- Redmi Note 9T |
- Redmi 7A |
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- Redmi Note 7 |
- Redmi 9A |
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- Redmi Note 6A |
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- Xiaomi Mi 11T Pro 5G |
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- Xiaomi Mi 11T 5G |
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- Xiaomi Mi 11 Lite 5G |
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- Xiaomi Mi 11i 5G |
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- Xiaomi Mi 11 |
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- Xiaomi Mi 11 Ultra 5G |
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- Xiaomi Mi 10T Pro |
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- Xiaomi Mi 10T 5G |
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- Xiaomi Mi 10T Lite |
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- Xiaomi Mi 12 5G |
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- Xiaomi Mi 12X 5G |
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- Xiaomi Mi 12 Pro 5G |
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- ASUS ZenFone 8 Flip |
- ASUS ROG Phone 5s Pro |
- ASUS ROG Phone III |
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- ASUS ZenFone 8 |
- ASUS ROG Phone 5s |
- ASUS ROG Phone II |
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- ASUS ZenFone 7 |
- ASUS ROG Phone 5 |
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- HTC U12+ |
- HTC Desire 12+ |
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- HTC U11+ |
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- HTC Desire 12+ |
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- LG G6 |
- LG K11 |
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- LG G6+ |
- LG V30+ |
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- LG G7+ |
- LG V40 |
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- LG G7 Fit |
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- LG Q6+ |
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- Nokia 9 |
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- Nokia 8 |
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- Nokia 8.3 5G |
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- Nokia 7.2 |
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- Nokia 7.1 |
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- Nokia 6.1 |
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- Nokia 7 Plus |
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- Nokia 8 Sirocco |
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- Nokia 2.3 |
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XIAOTIANCAI Z7 SMARTWATCH |
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