It is provided a method, comprising monitoring, for each of plural attempts of a web identity to register for an internet protocol multimedia service, if the respective attempt is received; generating, for each of the plural attempts if the respective attempt is received, a respective private user identification based on the web identity and a respective distinguishing identifier, wherein probability that two of the private user identifications have a same value is less than a predefined limit; providing the respective private user identification in response to the respective attempt.

A system and method are provided for a network device for use with a client device having a hostname and a MAC address. The network device contains a memory that has a second hostname and a second MAC address stored within the memory. The second MAC address corresponds to the second hostname. The memory also contains a processor configured to execute instructions stored on the memory to cause the network device to: receive, from the client device, the hostname and the MAC address; determine whether the MAC address is randomized; provide an instruction to the client device to inform a user of the client device that the client device hostname is registered when the hostname matches the second hostname and the MAC address is randomized.

Systems, apparatuses, methods, and one or more computer-readable media storing executable instructions for registering a multi-port device are described. A computing device may receive a registration request from a user device supporting multiple ports. In response, the computing device may send to the user device a message including a plurality of telephone numbers and information of associated ports.

Some embodiments relate to methods and systems for initiating and transferring cellular subscription service using associated cellular communication devices. Cellular service may be initiated for a first cellular communication device via a second cellular communication device. The first cellular communication device may be provisioned to operate in an independent mode. In other scenarios, cellular service may be transferred from the first cellular communication device operating in independent mode to a third cellular communication device, which may be provisioned to operate in independent mode.

A method and system for the leveraging a reserved relationship number by an SLS platform and/or SLS phone module for the purpose of performing special operations other than making an SLS call available for termination at a subscriber TD and/or a third party TD involve associating the SLS phone number of the subscriber, the primary number of the subscriber and a next set of instructions via a common reserved relationship number.

A method and system for the leveraging a reserved relationship number by an SLS platform and/or SLS phone module for the purpose of performing special operations other than making an SLS call available for termination at a subscriber TD and/or a third party TD involve associating the SLS phone number of the subscriber, the primary number of the subscriber and a next set of instructions via a common reserved relationship number.

A method for implementing an IP Multimedia Subsystem (IMS) registration, includes: a Home Subscriber Server (HSS) recording a current registration state of a User Equipment (UE) in response to receiving a Multimedia Authentication Request (MAR) initiated by a Service Call Session Control Function (S-CSCF) selected for the UE when a first Register request is sent by the UE; in response to receiving a second Register request initiated by an Interrogating Call Session Control Function (I-CSCF), the HSS sends the S-CSCF Name to the I-CSCF when the current registration state of the UE is an assigned S-CSCF state. By the scheme, a same S-CSCF is ensured to be used in the two User Authentication Request/User Authentication Answer (UAR/UAA) procedures of the initial IMS registration procedure, and the initial IMS registration of the UE is implemented successfully.

A device may receive provisioning data identifying an application server and a user equipment. The device may provide a request for reachability data associated with the user equipment and may receive the reachability data. The device may cause a trigger for a packet and data identifying the application server to be provided to the user equipment. The device may receive, from the user equipment, the packet that includes a network address and a port identifier of a port of the user equipment. The device may provide, to a firewall associated with the application server, an identifier, the network address, and the port identifier. The device may cause, via the firewall, the reachability data, the network address, and the port identifier to be provided to the application server to enable the application server to provide data to the user equipment.

A device estimating apparatus acquires one or more DNS queries transmitted from each device connected to a network and generates comparison source data in which each content of the acquired DNS queries is associated with one or more pieces of attribute information of each of the one or more devices that have transmitted the DNS queries having the content. Thereafter, when one or more DNS queries are acquired from an estimation target device, the device estimating apparatus reads, for each DNS query, attribute information of one or more devices associated with a content of the DNS query from the comparison source data and estimates an attribute of the estimation target device using the read attribute information.

Some embodiments relate to methods and systems for initiating and transferring cellular subscription service using associated cellular communication devices. Cellular service may be initiated for a first cellular communication device via a second cellular communication device. The first cellular communication device may be provisioned to operate in an independent mode. In other scenarios, cellular service may be transferred from the first cellular communication device operating in independent mode to a third cellular communication device, which may be provisioned to operate in independent mode.