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1O1O is proud to present you VoLTE, which stands for voice over LTE data and is a technology which brings much improved voice quality.
Establish significantly faster voice-call connections. Making a traditional 3G call connections takes an average of around 7 seconds but can be done in 1 second with VoLTE.
With 1O1O’s broad LTE coverage, voice quality and coverage is much better using VoLTE.
Ensures high-definition quality video calling (applicable to Android handsets only). Under VoLTE connection, the visual quality is clear without any grids, its resolution reaches up to 640 x 480 pixels, while for traditional video call connected via 3G network, the resolution is just 176 x 144 pixels.
Continue to enjoy using data for other functions such as browsing or downloading an app while on a call, which is handy for multi-tasking.
VoLTE also offers the ability to seamlessly switch between LTE and Wi-Fi Calling, without the call cutting out.
Enjoy instant switching between voice and video calls (applicable to Android handsets only) with one click. Avoid the need to wait for network switching from 3G to 4G and better life is usually improved.
Voice over LTE (VoLTE) of 1O1O can now be used outside Hong Kong. VoLTE Roaming Service allows you to connect voice calls through our overseas partner’s 4G LTE network while roaming. We will extend our VoLTE Roaming Service coverage and let you start to experience the speedy VoLTE call connection, try to provide the best roaming service and support you every step around the world.
HOW TO DIAL
No matter you are connecting with VoLTE Roaming Service or traditional roaming voice call, please use the following dialing method:
‹+›‹country code›‹area code›‹phone number›
Example:
When you want to call back HK while roaming, simple input
+852 ‹phone number›
A free of charge voice reminder for how to dial will be played if you are using VoLTE Roaming Service
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Use a VoLTE enabled handset |
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Have the handset software upgraded to latest version |
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Activate the VoLTE function of the handset |
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Enable VoLTE service |
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Use compatible device, updated to corresponding latest designated software version.
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Connect to partner’s network which has enabled VoLTE Roaming Service |
Activate VoLTE service on your device:
Call the 1O1O Corporate Service Hotline at
Or let us serve and help you directly by bringing your handset to 1O1O Corporate Service Center
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| Remarks | |
| 1. | VoLTE roaming service allow 1O1O customer connects voice calls through overseas partner’s 4G LTE network while roaming (“VoLTE Roaming Service”) |
| 2. | VoLTE Roaming Service is only applicable to 1O1O postpaid service plan customers who are enabled to access to 1O1O VoLTE service. Customer must register and activate IDD, Roaming, and use designated compatible device with specified system version in order to use VoLTE Roaming Service in designated areas with designated networks. For details, please visit https://www.1010.com.hk/en/business_roaming_mass |
| 3. | VoLTE Roaming Service may not completely cover all locations within the periphery, depending on performance of 4G LTE networks run by local operators. Roaming service will automatically switch to 2/3G, or other technologies, in locations not covered by a LTE network. |
| 4. | Usage will be calculated on a per minute basis. Any usage of less than one minute will be counted as one minute. |
| 5. | VoLTE Roaming Service will be available first to personal account customers of 1O1O. JOC/1C2N customers have not yet been available. We would timely update at our webpage. If customer has not registered for IDD and roaming services or has already applied for “barring of IDD or roaming voice service”, upon request on using VoLTE Roaming Service, it represents the customer agrees to activate IDD and roaming service and agree to “un-bar IDD and roaming voice service”. |
| 6. | In case of any dispute, the decision of CSL Mobile Limited is final. |
| 7. | In the event of any discrepancies between Chinese and English versions, the English version shall prevail. |
