Terms & conditions

TU Go Terms and Conditions for  31 October - 20 November

  1. The TU Go application ("App") is available to O2 customers. These terms, along with the End User Licence terms are the terms and conditions of the TU Go service and by using the App you confirm that you're happy to accept and abide by these terms.
  2. The App lets you:
a. connect voice calls to standard fixed and mobile numbers in the UK using your smartphone, tablet or other compatible device;
b. send and receive SMS;
c. download your voicemails to be listened to through the App on your device(s).
  1. The service is only available, if, having downloaded the App you enter a valid mobile phone number and then use the App on a suitable device. To find out if you have a suitable device visit: /apps/tu-go
  2. You will have to carry out a security validation process to confirm that you are using the App for the mobile phone number that you've given us. The App cannot be shared, and may only be used by the individual who is the account holder for the relevant O2 mobile phone number. If you disconnect your O2 account, or are in breach of your terms of service with O2, your TU Go service will be terminated.
  3. There is no monthly subscription charge associated with the TU Go service, however you will be charged in accordance with your existing tariff rates for making calls or sending text messages whether made over the mobile network (GSM) or Wi-Fi, or using mobile data. For clarity, you are charged separately for each individual element of using the service; the call, the text message and the data usage.  International calls and data usage will be charged in accordance with standard rates. The cost of the TU Go service is subject to change. We will notify you of any changes to the costs for the service in advance.
  4. You will need to have a compatible device and operating software to use the App. Details can be found at www.o2.co.uk/apps/tu-go.You will be responsible for updating your App from time to time.
You must not use the App:


  • for any application that constitutes, promotes or is used in connection with spyware, adware, other malicious programs or code.
  • for unlawful or fraudulent purposes, or in connection with a criminal offence or other unlawful activity;
  • to send, receive, upload, download, use or reuse any material that is illegal, offensive, abusive, malicious, threatening, racist, indecent, defamatory, derogatory, obscene, menacing, or otherwise objectionable;
  • to harass, stalk, inconvenience, cause annoyance or needless anxiety to any person, impersonate any other person or act in a way which may reasonably be objectionable or is otherwise injurious to third parties;
  • for business, commercial or unreasonable use;
  • in any way that breaches copyright, trademark, confidence, privacy or infringes the intellectual property rights of others;
  • in any way that causes, or is likely to cause, the Services or access to the Services to be interrupted, damaged or impaired in any way;
  • to initiate the sending of unsolicited advertising or promotional material including without limitation junk-mail for commercial or non-commercial reasons;
  • or via a Gateway so that the Service is provided via the Gateway to third parties.
If you do, we might have to block your use of the App.


  1. Data usage associated with using the App will be charged in accordance with your mobile contract. You may have a limited amount of monthly data from your internet service provider so be careful that you don't run up extra costs that you're not expecting.
  2. If you use the App to make a call on Wi-Fi and then leave the area of Wi-Fi coverage (or move onto another Wi-Fi service during the call) then the call will drop. Calls will not transfer between Wi-Fi and your cellular network if you leave Wi-Fi coverage (or visa-versa). Calls may stay connected for up to one minute after you have lost the Wi-Fi connection. You may be charged for the cost of a call of up to one minute, even though you have lost the connection.
  3. Any call diverts that you have set up on your mobile phone shall be cancelled when you use the App. These will revert if you delete your TU Go account. Your voicemail service must be set up and active in order to use the App. If you have turned your voicemail service off, registering for the App will automatically turn voicemail back on. If you wish to turn voicemail back off you need to deactivate it in the App settings.
  4. Some device features set by the device manufacturer may not be supported by the App, for example anonymising your caller ID and ‘do not disturb’ modes.  O2 shall have no liability for any decrease in device functionality as a result of your use of the TU Go service. Any numbers that you have barred on your mobile account (e.g. international calls) will not be applied to your App. International calls are available through the App and will be charged at your standard international rates.
  5. The App cannot be used to call premium rate numbers.
  6. The App is for person to person communications only. Certain automated messages (e.g. PIN automated bank codes) may not be sent to your App.
  7. You are responsible for keeping your TU Go password and log in details secure. Do not share these details and keep them safe. Your TU Go timelines will sync across your devices and can be viewed from each device. It is your responsibility to ensure that your device is secure and not accessible to others. O2 is not responsible for any losses or charges incurred by you as a result of your failure to keep your devices secure.
  8. You are recommended to use the service on secure network(s) that are password protected.
  9. Calls made over Wi-Fi are not secure or encrypted.
  10. You may delete calls, voicemails and text messages from your timeline on the App. Deleting from your timeline will not delete call/text records on your device.
  11. Deleting the App will not automatically erase the information stored on it unless you take appropriate steps to de-provision your account via the App. You can delete your account within the App at settings->account->delete account.
  12. It is your responsibility to ensure that private or sensitive information is deleted from the App and from your timelines. O2 are not responsible for any information that is not correctly deleted from the App in accordance with clause 18.
  13. Subject to giving you reasonable prior notice, if your account is inactive for a significant length of time, O2 may delete your account and the information contained in it.
  14. Anonymous calls cannot be made from the App.
  15. O2 are not responsible for any loss or damage to your messages, contacts and call history.
  16. You agree to receiving messages from time to time about O2 products and services, including SMS. Some machine-generated messages will be delivered to all of the devices on which you have installed the App.
  17. We don't represent or warrant that the App is free of inaccuracies, errors, delays, bugs or interruptions. We can't promise that the App will be free from interruptions or that the service is reliable, of a certain quality, accurate, complete or otherwise valid. The App is provided "as is" with no warranty, express or implied, of any kind. O2 expressly disclaims any and all warranties of fitness for purpose, availability, storage of data, security, title and/or non-infringement. You use the App at your own discretion and risk.
  18. The App is not a replacement for your mobile phone. The App does not support calls from smartphones to all numbers over Wi-Fi (like premium numbers) and does not allow you to make emergency (999) calls. If you try to make an emergency call from the App on a smartphone then the app will exit and an emergency call will be attempted over your mobile network. Making emergency calls from Wi-FI only devices is supported, however to provide an accurate location to emergency services, we still recommend using your smartphone if available.
  19. O2 reserves the right to amend, terminate or suspend this service at any time.
  20. These terms are governed by English law and are subject to the exclusive jurisdiction of the English courts, which both you and we submit to.

Supplementary terms for Business Customers

  1. TU Go will not work in conjunction with some O2 services such as Just Call Me and Mobile Voice Recording.  Further details can be found at /apps/tu-go
  2. The TU Go service is available on all business tariffs except Mobile Extension (Mobex), some Best for Business tariffs and data only tariffs.
  3. If you have an international bar on your mobile account you will not be able to use the TU Go service.
  4. The TU Go service is not a Public Sector Network accredited product.