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 application sets forth techniques for managing phone number-based user accounts. According to some embodiments, a server computing device can be configured to carry out the steps of (1) receiving, from a first client computing device, a request to create a user account based on a phone number, (2) in response to authenticating that the first client computing device is associated with the phone number: creating the user account based on the phone number, creating a hidden contact address based on the phone number, and assigning the hidden contact address to the user account, and (3) in response to receiving a notification that a second client computing device is associated with the phone number: requiring the user account to be updated to be based on a different phone number, or assigning, to the user account, a visible contact address based on the phone number.

An association server in a communication system receives a device identifier of a user device and searches a device-to-token database in order to determine whether the device identifier is currently associated with any device communication token. In response to determining that the device identifier is associated with a device communication token, the association server creates a communication account for the user device on a communication server, and sends a login credential for the communication account to the user device in a message transmitted via a message server. The message is addressed by the device communication token to a predetermined application installed on the user device. The predetermined application on the user device receives the message from the message service, and thereafter automatically logs in to the communication server according to the login credential included in the message.

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 securely configuring a Java Card virtual machine operating on a cellular device's application processor. In one embodiment, a connected device with an integrated cellular modem, a virtual universal integrated circuit chip and an integrated fingerprint scanner are used. In another embodiment, the cellular device's built-in camera is used, instead of an integrated fingerprint scanner, to capture the user's facial image.

An association server in a communication system receives a device identifier of a user device and searches a device-to-token database in order to determine whether the device identifier is currently associated with any device communication token. In response to determining that the device identifier is associated with a device communication token, the association server creates a communication account for the user device on a communication server, and sends a login credential for the communication account to the user device in a message transmitted via a message server. The message is addressed by the device communication token to a predetermined application installed on the user device. The predetermined application on the user device receives the message from the message service, and thereafter automatically logs in to the communication server according to the login credential included in the message.

Asynchronous and/or synchronous zero charge telephony protocol systems and methods may include an asynchronous signaling switch and/or a call duration time quota from a synchronous charging onset to place and complete a call. A call request is received with a second device mobile address. The asynchronous systems include instructions to automatically modify the mobile address with a routing prefix when the first device has insufficient balance or independent of balance, route to the asynchronous signaling switch based on an associated modified address trunk path, revert to the call signal at the asynchronous signaling switch, and deliver and automatically disconnect the call immediately when the call is completed. The synchronous systems include instructions to automatically set the call duration time quota upon insufficient balance, and deliver and automatically disconnect the call from the second user mobile device when the call is completed and the call duration time quota is exceeded.

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 disclosure provides methods, systems, and platforms for automatically prompting a mobile device user to download an application to their mobile device after a triggering event. Triggering events include calling a business, receiving a call from a business, and navigating to a website. In some embodiments, a business can run a targeted campaign to automatically prompt a mobile device user to download an application. In some embodiments, the platform interacts with an application installed on the mobile device. The prompt displayed on the mobile device includes an actionable option to download an application.

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.