A Policy and Charging Rules Function (PCRF) can maintain a mapping table that associates gateway identifiers of gateways in a packet core network with corresponding IP address ranges. Based on an IP address of user equipment (UE), the PCRF can identify which of the IP address ranges in the mapping table over the UE's IP address, and which gateway identifier is mapped to that IP address range. The PCRF can accordingly contact the identified gateway to establish a Gx session for the UE with the gateway, such as restoring a previous Gx session or establishing a new Gx session.

A system, server, and method of DTMF detection in a VoIP network.

In a cellular system having both 4.sup.th-Generation (4G) and 5.sup.th-Generation (5G) cellular networks, cellular device sends a Session Initiation Protocol (SIP) INVITE message to initiate a voice call. The message is received and acted upon by a Proxy-Call Session Control Function (P-CSCF) of an IP Multimedia Subsystem (IMS). Cellular devices that support 5G services are configured to include an information element (IE) in the SIP INVITE message to indicate support for 5G services. When responding to a SIP INVITE message, the P-CSCF determines whether the SIP INVITE message includes such an IE. If the SIP INVITE message contains an IE indicating 5G support, the P-CSCF sends an Authorization Authentication Request (AAR) message to a 5G Policy Control Function (PCF) to initiate a 5G dedicated bearer. Otherwise, the P-CSCF sends the AAR to a 4G Policy and Charging Rules Function (PCRF) to initiate a 4G dedicated bearer.

The disclosed technology includes at least one method performed by a system of a telecommunications network. The system can establish a communications link between the wireless device and a network access node (NAN) of the 5G network. While connected over a non-mmW band, the wireless device autonomously schedules data downloads to occur when the wireless device is on an mmW band. The system then receives a request from the wireless device to perform the data downloads, which can be enabled by a packet gateway (PGW) upon receiving a confirmation by the NAN that the wireless device can connect over the mmW band. Otherwise, the PGW denies the wireless device's request to perform the data downloads, which can be enforced by the NAN.

Systems and methods are described herein for determining dropped call rates (DCR) for various communications networks, such as IP Multimedia Networks (IMS), which include Voice over LTE (VoLTE) networks. For example, the systems and methods utilize data (e.g. abnormal cause codes) generated by layers of the IMS networks, such as a Session Initiation Protocol (SIP) layer of the IMS network, when determining dropped call rates for IMS networks.

Methods, devices, and computer-readable mediums may provide receiving, at a request to establish an access and mobility (AM) policy control association in relation to an establishment of a packet data unit (PDU) session requested by a subscriber associated with a user equipment (UE) device; generating a query to a network device via a network interface, for AM policy control data and for at least one of UE policy control data or session management (SM) policy control data; receiving the AM policy control data and the at least one of the UE policy control data or the SM policy control data from the network device, creating the AM policy control association based on the received AM policy control data; and storing the at least one of the UE policy control data or the SM policy control data.

A system and method for automating test scenarios for a component or entity of a network, including defining a test case that includes multiple values for multiple parameters and generating at least one test scenario based on the test case. Test scenarios can utilize the same traffic generator files and share data files to automate test execution. The system and method can further include executing a test scenario to obtain a test result that indicates whether the component or entity of the network passed or failed the test scenario.

The disclosed technology includes at least one method performed by a system of a telecommunications network. The system can establish a communications link between the wireless device and a network access node (NAN) of the 5G network. While connected over a non-mmW band, the wireless device autonomously schedules data downloads to occur when the wireless device is on an mmW band. The system then receives a request from the wireless device to perform the data downloads, which can be enabled by a packet gateway (PGW) upon receiving a confirmation by the NAN that the wireless device can connect over the mmW band. Otherwise, the PGW denies the wireless device's request to perform the data downloads, which can be enforced by the NAN.

A method, a device, and a non-transitory storage medium are described in which a mapping table is transmitted to a user device. The mapping table includes, for each entry, an index, a frequency band, and wireless services available on the frequency band. Index information corresponding to a frequency band and wireless service available in a location associated with the user device is communicated to the user device. An icon associated with the wireless service is displayed on a display of the user device. A network device determines that the user device is using the wireless service to communicate via a wireless network and transmits, to a core network, an indication that the user device is using the wireless service on the frequency band.

A wireless device determines a change in a signal quality measurement of a wireless network. In response to the determining, a first message for changing one or more media for a video call in the wireless network is transmitted from the wireless device to a video application function (AF). A policy and charging rules function (PCRF) receives from the video AF, a DIAMETER AA-request (AAR) command for modifying a quality of service (QoS) of the video call. The PCRF transmits to a policy and charging enforcement function (PCEF), a second message comprising an updated QoS, wherein the updated QoS comprises QoS data bearer modification information based on the change in the signal quality measurement of the wireless network. The PCEF implements the updated QoS for the video call.