This disclosure provides systems, methods, services, and platforms for automatically prompting a user of a mobile device to send feedback after a triggering event. This disclosure enables Mobile Network Operators to immediately solicit timely feedback from a mobile user after an interaction with the user. When a business, group, or other entity has an active survey campaign, a survey message comprising one or more response options is automatically sent to a mobile device after a triggering event occurs. Based on the user's selected response option, subsequent, follow-up survey messages can be automatically sent to the mobile device.

A method, system and graphical user interface (GUI) for a mobile device, the GUI including: (a) at least one multifunctional button having at least two activation states: (i) a first state, when actuated, providing a basic function, and (ii) a second state, when actuated, providing an advanced function; whereby each of the activation states is actuated by a different user action; and (b) a plurality of calling accounts, each of the plurality of calling account being logically associated with a subscriber identity module (SIM) card or a direct inward dial (DID) number; wherein the at least one multifunctional button is configured to facilitate selection of one of the plurality of calling accounts in order to perform a communication event.

Apparatuses, methods, and systems are provided for configuring a “SIM-less” System-on-Chip (S2oC) with integrated reprogrammable cellular network connectivity. Digitally issued Subscriber Identity Module (SIM) cards may be digitally issued by a remote server and downloaded and managed by the S2oC. A virtual SIM card container may be packaged in the S2oC and hosts an identity manager used by a plurality of applications residing in the multi-core processor of the S2oC. A virtual modem with a custom communication protocol allows the multi-core processor applications to exchange data with the virtual SIM card container.

Apparatuses, methods, and systems are provided for configuring a “SIM-less” System-on-Chip (S2oC) with integrated reprogrammable cellular network connectivity. Digitally issued Subscriber Identity Module (SIM) cards may be digitally issued by a remote server and downloaded and managed by the S2oC. A virtual SIM card container may be packaged in the S2oC and hosts an identity manager used by a plurality of applications residing in the multi-core processor of the S2oC. A virtual modem with a custom communication protocol allows the multi-core processor applications to exchange data with the virtual SIM card container.

An apparatus enables communication between a user device and a communication server. The apparatus receives a device identifier of the user device and determines after searching a device-to-token database that the device identifier is not associated with any device communication token. The apparatus activates a predetermined application on the user device, and thereafter receives a device communication token of the predetermined application. A mapping of the device communication token with the device identifier is stored in the device-to-token database after which a communication account is created for the user device on a communication server. A login credential for the communication account is sent to the user device in a message addressed to the predetermined application and transmitted via a message server. The predetermined application on the user device receives the message, and thereafter automatically logs in to the communication server according to the login credential in the message.

This disclosure provides aspects and embodiments of methods, services, and platforms for prompting users with a zero account balance to send a callback message to a contact informing the contact that the user cannot call them and asking the contact to call the user. This disclosure further provides location determining platforms and rewards platforms for users.

This application discloses a roaming charging method and apparatus. A blockchain network stores information related to roaming fee settlement, to reduce a possibility that the information related to roaming fee settlement is tampered with. In addition, a digital signature algorithm is used to sign roaming service statistics to generate an abstract, to further prevent the roaming service statistics from being tampered with. In this way, when a home carrier verifies a roaming account balance by using the roaming service statistics and a roaming charging rule, accuracy of a verification result can be ensured, and the home carrier can obtain an accurate roaming fee of a user.

This disclosure provides methods, services, and platforms that automatically prompt mobile phone users to add contact information to their phone book after a triggering event such as calling a phone number. The methods, services, and platforms allow mobile network operators to provide a service that allows businesses to potentially have their numbers added to the phonebook of a mobile phone after a disconnected call.

This disclosure provides aspects and embodiments of methods, services, and platforms for prompting users with a zero account balance to send a callback message to a contact informing the contact that the user cannot call them and asking the contact to call the user. This disclosure further provides location determining platforms and rewards platforms for users.

Example embodiments relate to a user equipment that can receive a command to turn on the user equipment. In response to determining that the user equipment has not been initialized, and prior to displaying a graphical user interface listing a Wi-Fi network to which the user equipment can connect, the user equipment presents a graphical user interface that displays an option to activate a cellular service provided by a mobile network operator entity, but does not display an option to activate the cellular service at a subsequent time.