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 first device 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 the modified call signal at the asynchronous signaling switch to the call signal, 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.

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.

Telecommunication services systems and methods are disclosed. The telecommunication services systems and methods preferably enable a buyer to certify and activate a used wireless telecommunications device. The systems and methods may also be employed to provide the buyer with specialized pricing options and other customized services.

This application discloses a display method and an electronic device, and relates to the field of terminal technologies. The method includes: sending, by the electronic device in response to a first operation, a profile download request to an operator network; and receiving a profile, where the profile includes profile metadata, and the profile metadata includes at least one field; and in response to a second operation, displaying a first screen on a display based on the profile metadata, where the first screen includes at least one of a first option indicating a network standard, a second option indicating a card type, a third option indicating account balance information of the profile, a fourth option indicating information about a remaining data volume of an account data plan, and a fifth option indicating a state of an account. This allows a user to learn profile capabilities before activating the profile.

A method of data communication service to a wireless communication device, comprising receiving a first communication session initiation message by a communication gateway from a wireless communication device, wherein the first communication session initiation message provides no access point name (APN) or provides a default APN, based on the first communication session initiation message providing no APN or providing a default APN, sending the first communication session initiation message by the communication gateway to an APN allocation server, parsing the first communication session initiation message by the APN allocation server to determine a destination identity of the first communication session initiation message and to determine an identity of the wireless communication device, looking up a communication policy by the APN allocation server, looking up by the APN allocation server an APN associated with the communication policy, sending the APN by the APN allocation server to the wireless communication device.

This Application sets forth techniques for provisioning and activating electronic subscriber identity modules (eSIMs) for mobile wireless devices. An eSIM is reserved during a sales order process and later activated during device activation after receipt by a user. An option for eSIM installation in place of (or in addition to) physical SIM installation is provided when purchasing the mobile wireless device. The reserved eSIM can replace a previous SIM/eSIM or be a new eSIM. During device activation, installation and activation of the eSIM occurs. Activation of the eSIM can occur before or after deactivation of a transferred SIM/eSIM. The mobile wireless device accounts for propagation delay of eSIM activation through MNO servers by disabling and re-enabling the eSIM until initial attachment to an MNO cellular wireless network succeeds or a maximum number of retry attempts is reached.

The present application relates to the technical field of allocating the SIM resource, and provides a method and a system for allocating a SIM card resource, a terminal device and a storage medium, including acquiring a SIM card resource allocation request of a requesting terminal, and determining candidate SIM card resource sharing information corresponding to the SIM card resource allocation request; determining a target SIM card resource sharing information from the candidate SIM card resource sharing information, and acquiring a target terminal corresponding to the target SIM card resource sharing information; establishing a SIM card resource transmission channel between the target terminal and the requesting terminal; and allocating a SIM card resource corresponding to the target terminal to the requesting terminal through the SIM card resource transmission channel. The present application avoids the waste of SIM card resource by reallocating SIM card resource.

A radio access network (“RAN”) includes a transceiver for receiving a request from user equipment (“UE”) to join the RAN. The RAN also includes a processor that is configured for: responding to the UE request by sending a message directly from the RAN to the UE to offer a set of first terms for the UE to use a cellular network of the RAN; receiving a response from the UE agreeing to the set of first terms; and in response to the UE agreeing to the set of first terms, connecting the UE to use a cellular network of the RAN.

The present invention discloses methods and systems for communicating at a cellular router between a first wireless communication module and a first subscriber identity module (SIM). The cellular router receives a first request from a first wireless communication module and encapsulates the first request in a first modified request. The cellular router then sends the first modified request to a first SIM card in a first communication apparatus and waits for a first modified reply. While waiting for the first modified reply the cellular router sends at least one halt message to the first wireless communication module after a first time threshold. After receiving the first modified reply, the cellular router decapsulates the first modified reply to retrieve a first reply and sends the first reply to the first wireless communication module where the first modified reply is a reply to the first modified request.

The present invention discloses methods and systems for communicating at a cellular router between a first wireless communication module and a first subscriber identity module (SIM). The cellular router receives a first request from a first wireless communication module and encapsulates the first request in a first modified request. The cellular router then sends the first modified request to a first SIM card in a first communication apparatus and waits for a first modified reply. While waiting for the first modified reply the cellular router sends at least one halt message to the first wireless communication module after a first time threshold. After receiving the first modified reply, the cellular router decapsulates the first modified reply to retrieve a first reply and sends the first reply to the first wireless communication module where the first modified reply is a reply to the first modified request.