Techniques for optimizing IMS service routing

A proxy call session control function (P-CSCF) node operating in an Internet Protocol Multimedia Subsystem (IMS) network comprising:

• one or more processors;
• and
• one or more non-transitory computer-readable media storing computer-executable instructions that, when executed by the one or more processors, cause P-CSCF node to perform operations comprising:
• receiving a communication relating to a service to be provided to a user equipment (UE);
• providing, to a Home Subscriber Server (HSS) in direct communication with the P-CSCF node, information related to the UE;
• obtaining, from a Home Subscriber Server (HSS), profile data related to the UE without any additional communication between the P-CSCF node and other components of the IMS network;
• making a determination about the service to be provided to the UE based on the profile data related to the UE;
• and
• routing a message to an electronic device based on the determination about the service to be provided.

A system comprising:

• a home subscriber server (HSS) configured to:
• receive information related to a user equipment (UE) from a proxy call session control function (P-CSCF) node operating in an Internet Protocol Multimedia Subsystem (IMS) network;
• generate profile data based on a user profile maintained in relation to the UE;
• and
• provide the profile data to the P-CSCF node;
• and
• the P-CSCF node in direct communication with the HSS, the P-CSCF node configured to:
• receive a communication relating to a service to be provided to the UE;
• provide, to the HSS, the information related to the UE;
• receive the profile data from the HSS in response to providing the information, wherein the profile data is received without any additional communication between the P-CSCF node and other components of the IMS network;
• and
• make a determination about the service to be provided to the UE based on the profile data related to the UE.