1. Any usage of local Voice Call, IDD Voice Call and All Call Forwarding will be calculated on a per minute basis.  Any usage of less than one minute will be counted as one minute.
2. IDD to China is $1/min, local voice call charge applied. For IDD Voice calls to other countries, local voice call charge $0.12/min applies in addition to IDD Voice Call charges and these charges are calculated on a per minute basis. The IDD charges and coverage are subject to change from time to time without prior notice, for details, please click here.
3. Intra-network video call is made call within Hong Kong to one2free prepaid customers, PCCW-HKT prepaid customers, 1O1O, csl and SUN Mobile customers. For details on international video call charges, please visit our website www.hkcsl.com or call our hotline 179 179.
4. Intra-network SMS is text SMS sent within Hong Kong to one2free prepaid customers, PCCW-HKT prepaid customers, 1O1O, csl and SUN Mobile customers. Inter-network SMS is text SMS sent within Hong Kong to other Hong Kong networks.  International SMS is text SMS sent within Hong Kong to users of overseas networks.
5. 600Mbps is our network specification for downlink of 4G LTE-A network (with 75Mbps for uplink) provided via three sections of 20MHz continuous 4G spectrum each, which is only available to designated locations with the use of a compatible device. Actual speeds that customers experience are less than the specifications and will be affected by the device used, locations, network conditions and other extraneous factors. Compares to other commercially launched mobile networks available to customer in Hong Kong as of 1 Oct 2017
6. Data Passes and 30-Day Pass:
   1. Any unused Local Mobile Data usage of Data Passes would be forfeited upon expiry of data pass validity period.
   2. If you subscribe to multiple 1-Hour Data Passes simultaneously, all the Data Passes will be valid until the latest expiry date of the subscribed Data Passes and you may use the Local Mobile Data usage included in all the Data Passes at any time during the extended validity period.
   3. If you subscribe to multiple 1-Day/3-Day/7-Day Data Passes simultaneously, all the Data Passes will be valid until the latest expiry date of the subscribed Data Passes and you may use the Local Mobile Data usage included in all the Data Passes at any time during the extended validity period.
   4. 30-day data pass will be renewed automatically every 30 days (23:59 on 30th day) after subscription. Any unused usage cannot be carried forward to the next 30-day period and will be forfeited at the end of the respective period. To unsubscribe this service, please dial *101#835*1# from your handset, the cut-off time is 23:59 on the expiry date. If you subscribe to multiple 30-Day Data Passes simultaneously, the system will follow the last subscribed 30-Day pass expiry date and will be auto-renewed. Previous 30-Day Data Pass subscribed will end upon original expiry date (23:59).
   5. If you subscribe to multiple 1-Hour and 1-Day/3-Day/7-Day Data Passes simultaneously, all the 1-Hour Data Passes will be used first in accordance with sub-clause (b) of this clause.   After the local Mobile Data included in all the 1-Hour Data Passes has been used up, your local Mobile Data usage will be deducted from the 1-Day/3-Day/7-Day Passes, validity and data usage of all 30-Day Passes will be in accordance with sub-clause (c) of this clause.
   6. If you subscribe to multiple 1-Day/3-Day/7-Day and 30-Day Data Passes simultaneously, all the 1-Day/3-Day/7-Day Data Passes will be used first in accordance with sub-clause (c) of this clause.   After the local Mobile Data included in all the 1-Day/3-Day/7-Day Data Passes has been used up, your local Mobile Data usage will be deducted from the 30-Day Passes, validity and data usage of all 30-Day Passes will be in accordance with sub-clause (d) of this clause.
   7. If you subscribe to multiple 1-Hour, 1-Day/3-Day/7-Day Data Passes and 30-Day Pass simultaneously, all the 1-Hour Data Passes will be used first in accordance with sub-clause (b) of this clause.  After the local Mobile Data included in all the 1-Hour Data Passes has been used up, your local Mobile Data usage will be deducted from the 1-Day/3-Day/7-Day Passes, validity of which will be in accordance with sub-clause (c) of this clause. After the local Mobile Data included in all the 1-Day/3-Day/7-Day Passes has been used up, your local Mobile Data usage will be deducted from the 30-Day Data Passes, validity of which will be in accordance with sub-clause (d) of this clause.
7. After you have reached 6GB of mobile data usage (the monthly fair usage level per calendar month), you can still continue to use the service. However, your network specification will be lowered to 128kbps. CSL Mobile Limited complies with OFCA’s Guidelines for the Implementation of Fair Usage Policy for the Provision of Mobile and Fixed Broadband Services and will not at any time cap your data network specification below 128kbps. You will receive an SMS notification once you have reached 6GB and the fair usage policy is in place. Actual speeds that customers experience are considerably less than the specifications and will be affected by the device used, locations, network conditions and other extraneous factors.
8. 1-Hour Plan includes a continuous 60-minute session upon your subscription.
9. 1-Day / 3-Day / 7-Day / 365-Day Pass is based on a continuous 24-hours per day.
10. Please refer to "csl Wi-Fi Service" for details.
11. 1-day / 3-day / 7-day International roaming data pass must be subscribed via subscription code when roaming in selected destinations. 1-day / 3-day / 7-day International roaming data pass will be valid for 1-day / 3-day / 7-day, the cut-off time of daily usage is 23:59 HK Time (GMT+8:00) of the subscription day regardless of the activation time of roaming destination. Any unused Mobile Data entitlement will be forfeited after the cut-off time. The roaming data service coverage are subject to change from time to time without prior notice, for details, please click here. Ability of mobile data service depends on your roaming destination or the local network coverage.  
12. You may subscribe to multiple International roaming data pass simultaneously and the validity of all passes will be extended to 23:59 HK Time (GMT+8:00) of the "n" day. "n" means the number of Day International roaming data pass subscribed simultaneously. You may use the Roaming Mobile Data usage included in all the passes at any time during the extended validity period.
13. Customers are required to download the KingKing application to utilize this service. KingKing is compatible only with certain handsets( please refer to www.hkcsl.com/en/KK-voice-call-service-2nd/). $8/day, $88/30days for making outgoing calls to any Hong Kong phone number or receiving incoming calls from anywhere in the world via KingKing, cut off time of the day plan package is 23:59 HK time on expire day. IDD charges apply if making calls to non-Hong Kong phone numbers, and local voice call minutes will be charged for the duration of such a call during all calls. Charges for Wi-Fi connectivity and IDD charges (if any) are additional. Local voice call minutes will be charged for using KingKing application to make/receive calls in Hong Kong. csl cannot guarantee "KingKing" service performance on handset models not listed, nor call quality at every single Wi-Fi hotspot or any other place where Wi-Fi is available. Download the application from Google Play and App Store will incur local mobile data charge, while roaming data charge will incur in overseas.
14. MTR/Tunnels/Mobile License/Administration Fee will be imposed once you activate this Prepaid SIM Card. This fee will be waived for the first 30 days after activation, then will be deducted on the subsequent day and thereafter every 30 days.
15. Validity of the Prepaid SIM Card will be extended for 180 days from the date of recharge upon every recharge of HK$50 or above, the validity will be extended for 730 days from the date of recharge upon every recharge of HK$1,000.
16. Terms & Conditions apply. For details, please contact 24-Hour customer service 179179.
17. We reserve the right to terminate your mobile service without prior notice if your remaining balance is $0 or less and no usage in past consecutive 3 months.

Android
Settings > Wireless & Network > More Settings > Mobile networks > Access Point Names > +New APN > APN > Insert mobile

iOS
iPhone: Settings > Cellular > Cellular Data Network > APN: Insert mobile