Abstract: An Internet Protocol Multimedia Subsystem (IMS) includes a Serving-Call Session Control Function (S-CSCF). The S-CSCF includes a Service Capability Interaction Manager (SCIM) configured to invoke one or more application services in response to a message being received by the S-CSCF.

Abstract: An Internet Protocol Multimedia Subsystem (IMS) device includes a memory configured to store a subscriber profile, where the subscriber profile includes at least one criterion relating to an event that occurs after a session request has been forwarded to a terminating party. The IMS device further includes a processor configured to invoke at least one application service for a session based on the at least one criterion in the subscriber profile.

Abstract: At least one device receives a call request from a calling party to a called party. The device routes the call request to an Internet Protocol Multimedia Subsystem (IMS) core when a first condition is met and bypasses the IMS core when a second condition is met.

Abstract: A method includes receiving a telephone number mapping query associated with a call. The method may also include generating routing information based on the query and forwarding the routing information to a control device. The routing information may indicate that processing associated with routing the call is to bypass a core portion of an Internet multimedia subsystem (IMS) when a calling party associated with the call does not invoke an IMS service, the called party associated with the call does not invoke an IMS service and the called party is not an IMS subscriber.

Abstract: A system includes a policy engine in an Internet Protocol Multimedia Subsystem (IMS). The policy engine may be configured to store a group of policies associated with the IMS, and forward the group of policies to a group of policy components in the IMS.