Abstract: Described herein is a subscriber database node configured to determine that a user equipment (UE) is connected to a non-Internet Protocol Multimedia System (non-IMS) network and to, in response, instruct an IMS node to delete an IMS profile associated with the UE. The subscriber database may determine the network of the UE in response to receiving a message associated with the UE, such as an update location request or a session termination message. When the message is an update location request, the subscriber database may check information in a data store to determine that the UE is connected to a non-IMS network.

Abstract: Systems, methods, and process nodes for managing device connections in a first telecommunications network perform and/or comprise: receiving a handover connection request from a wireless device via a second telecommunications network; requesting an allowlist from a database associated with the first telecommunications network; determining, based on a content of the handover connection request and the allowlist, whether the wireless device is capable of performing a communication technique associated with the first telecommunications network; and in response to a determination that the wireless device is not capable of performing the communication technique, performing a denial operation with regard to the wireless device.

Abstract: Routing servers (DRA, STP, GTP proxy) coupled to one or more home servers (HLR, HSS) enforce a policy on SS7 or LTE or GTP messages destined to a core network associated with the one or more home servers. IMSI ranges associated with the different home servers are used to filter and route messages at the DRA, STP, and GTP proxy servers.

Abstract: The current disclosure relates to a system and method for optimizing network access for a roaming device. In particular, the method includes receiving a request for network access from a client device. The method then determines if the device is roaming. If the device is roaming, the method then includes selecting one or more gateways for the roaming device and transmitting the selected gateways to the roaming device. Such gateways may be selected based upon device location within the roaming network to reduce latency or improve other performance metrics.

Abstract: Restricting mobility between networks by identifying and rejecting incoming mobility events (e.g. handovers) from unknown cell sites based on a cellID included in a handover request. Core network nodes e.g. MME, AMF, SMF, can detect and reject the incoming mobility events by comparing Cell ID with a white list or referring to a database. This improves over current 3GPP specifications and network vendor implementations that support restriction policies on the source but not on the target.

Abstract: Systems, methods, and process nodes for managing device connections in a telecommunications network perform and/or comprise: receiving a connection request from a wireless device at a first Public Land Mobile Network (PLMN) of the telecommunications network; comparing a capability report of the wireless device to a predetermined criteria, wherein the predetermined criteria corresponds to whether the wireless device is compatible with the first PLMN; and in response to a determination that the capability report meets the predetermined criteria, denying the connection request.

Abstract: Systems, methods, and process nodes for managing device connections in a first telecommunications network perform and/or comprise: receiving a handover connection request from a wireless device via a second telecommunications network; requesting an allowlist from a database associated with the first telecommunications network; determining, based on a content of the handover connection request and the allowlist, whether the wireless device is capable of performing a communication technique associated with the first telecommunications network; and in response to a determination that the wireless device is not capable of performing the communication technique, performing a denial operation with regard to the wireless device.

Abstract: Methods, systems, and non-transitory computer readable media for enforcing a steering of roaming (SoR) decision. More particularly, enforcing the SoR decision includes receiving, at a proxy and from a user equipment (UE) located in a visitor network, a registration message to register with a home network, the registration message including an identifier of the visitor network. The proxy routes the registration message to a steering controller to determine a SoR policy decision. The proxy then enforces the SoR policy decision of the steering controller.

Abstract: Systems, methods, and process nodes for managing device connections in a telecommunications network perform and/or comprise: receiving a connection request from a wireless device at a first Public Land Mobile Network (PLMN) of the telecommunications network; comparing a capability report of the wireless device to a predetermined criteria, wherein the predetermined criteria corresponds to whether the wireless device is compatible with the first PLMN; and in response to a determination that the capability report meets the predetermined criteria, denying the connection request.

Abstract: Restricting mobility between networks by identifying and rejecting incoming mobility events (e.g. handovers) from unknown cell sites based on a cellID included in a handover request. Core network nodes e.g. MME, AMF, SMF, can detect and reject the incoming mobility events by comparing Cell ID with a white list or referring to a database. This improves over current 3GPP specifications and network vendor implementations that support restriction policies on the source but not on the target.

Abstract: Systems, methods, and process nodes for managing device connections in a telecommunications network perform and/or comprise: receiving a connection request from a wireless device at a first Public Land Mobile Network (PLMN) of the telecommunications network; comparing a capability report of the wireless device to a predetermined criteria, wherein the predetermined criteria corresponds to whether the wireless device is compatible with the first PLMN; and in response to a determination that the capability report meets the predetermined criteria, denying the connection request.

Abstract: Restricting mobility between networks by identifying and rejecting incoming mobility events (e.g. handovers) from unknown cell sites based on a cellID included in a handover request. Core network nodes e.g. MME, AMF, SMF, can detect and reject the incoming mobility events by comparing Cell ID with a white list or referring to a database. This improves over current 3GPP specifications and network vendor implementations that support restriction policies on the source but not on the target.

Abstract: Methods, systems, and non-transitory computer readable media for enforcing a steering of roaming (SoR) decision. More particularly, enforcing the SoR decision includes receiving, at a proxy and from a user equipment (UE) located in a visitor network, a registration message to register with a home network, the registration message including an identifier of the visitor network. The proxy routes the registration message to a steering controller to determine a SoR policy decision. The proxy then enforces the SoR policy decision of the steering controller.

Abstract: The current disclosure relates to a system and method for optimizing network access for a roaming device. In particular, the method includes receiving a request for network access from a client device. The method then determines if the device is roaming. If the device is roaming, the method then includes selecting one or more gateways for the roaming device and transmitting the selected gateways to the roaming device. Such gateways may be selected based upon device location within the roaming network to reduce latency or improve other performance metrics.

Abstract: Systems and methods for over-the-air (OTA) updating of data stored on Narrowband Internet of Things (NB-IoT) devices are provided. Such techniques enable updates to be provided on a timely basis for NB-IoT devices that lack short message service (SMS) capabilities, through polling an OTA update server in response to the occurrence of triggering events at the NB-IoT devices. Triggering events may be identified based upon conditions such as time since a previous update attempt or number of times the NB-IoT device has awoken since the previous update attempt. The updates may include updates to network lists used by the NB-IoT devices to determine preferred or forbidden networks, thereby reducing battery drain from repeated attempts to connect to inaccessible networks.

Abstract: The present disclosure describes techniques that facilitate detecting a Voice over Long-Term Evolution (VoLTE) call request with a recipient call number that lacks a country code. The VoLTE call request may be initiated by a subscriber device while roaming in a VPLMN. Specifically, a Normalization and Alert Policy (NAP) system is described that is configured to analyze the VoLTE call request and determine an intended country code and adjust the recipient call number to include the country code. Further, the NAP system may analyze the adjusted recipient call number to determine whether initiating a VoLTE call in response to the VoLTE call request may trigger an alert condition. An alert condition may relate to determining that the VoLTE call request may initiate a cost-prohibitive VoLTE communication or that the VoLTE call request relates a fraudulent communication.

Abstract: Systems and methods for over-the-air (OTA) updating of data stored on Narrowband Internet of Things (NB-IoT) devices are provided. Such techniques enable updates to be provided on a timely basis for NB-IoT devices that lack short message service (SMS) capabilities, through polling an OTA update server in response to the occurrence of triggering events at the NB-IoT devices. Triggering events may be identified based upon conditions such as time since a previous update attempt or number of times the NB-IoT device has awoken since the previous update attempt. The updates may include updates to network lists used by the NB-IoT devices to determine preferred or forbidden networks, thereby reducing battery drain from repeated attempts to connect to inaccessible networks.

Abstract: Methods, systems, and non-transitory computer readable media for intelligent steering of roaming of user equipment. More particularly, the methods include receiving, from a user equipment (UE) located in a visitor network, a registration message to register with a home network, the registration message including an identifier of the UE. The methods also include querying, by one or more processors, a steering controller using the identifier of the UE to obtain a roaming list customized for the UE. The methods also include pushing, by one or more processors, the roaming list to the UE.

Abstract: Methods, systems, and non-transitory computer readable media for intelligent steering of roaming of user equipment. More particularly, the methods include receiving, from a user equipment (UE) located in a visitor network, a registration message to register with a home network, the registration message including an identifier of the UE. The methods also include querying, by one or more processors, a steering controller using the identifier of the UE to obtain a roaming list customized for the UE. The methods also include pushing, by one or more processors, the roaming list to the UE.

Abstract: The present disclosure describes techniques that facilitate detecting a Voice over Long-Term Evolution (VoLTE) call request with a recipient call number that lacks a country code. The VoLTE call request may be initiated by a subscriber device while roaming in a VPLMN. Specifically, a Normalization and Alert Policy (NAP) system is described that is configured to analyze the VoLTE call request and determine an intended country code and adjust the recipient call number to include the country code. Further, the NAP system may analyze the adjusted recipient call number to determine whether initiating a VoLTE call in response to the VoLTE call request may trigger an alert condition. An alert condition may relate to determining that the VoLTE call request may initiate a cost-prohibitive VoLTE communication or that the VoLTE call request relates a fraudulent communication.