Internet protocol multimedia subsystem connection management

A non-transitory computer-readable medium storing instructions, the instructions comprising:

• one or more instructions that, when executed by one or more processors, cause the one or more processors to:
• receive first internet protocol multimedia subsystem (IMS) data from a user device;
• provide first IMS registration data to an IMS device,
• the first IMS registration data including data identifying the user device;
• maintain an IMS connection between the user device and the IMS device;
• receive, from the IMS device, an IMS invite addressed to the user device;
• store the IMS invite;
• provide, to a push notification device, a push notification request that specifies the user device;
• receive, from the user device, second IMS registration data;
• and
• perform an action based on the second IMS registration data.

A method, comprising:

• receiving, by a device, first internet protocol multimedia subsystem (IMS) data from a user device;
• providing, by the device, first IMS registration data to an IMS device,
• the first IMS registration data including data identifying the user device;
• maintaining, by the device, an IMS connection between the user device and the IMS device;
• receiving, by the device and from the IMS device, an IMS invite addressed to the user device;
• storing, by the device, the IMS invite;
• providing, by the device and to a push notification device, a push notification request that specifies the user device;
• receiving, by the device and from the user device, second IMS registration data;
• and
• performing, by the device, an action based on the second IMS registration data.