scope:

Scope, Purpose, and Application

The Intermediate Network Selection (INS) network capability allows an application process in the origination network to specify a single intermediate signalling network for non-circuit-associated signalling messages. This network capability also includes functionality that may be used to route non-circuit-associated messages in a number portability environment. Specifically, in a number portability environment, this capability allows the selected intermediate network to use the number portability routing information derived at a special translation node (e.g., 10-digit translation node in the origination network) to route messages towards the destination network.

The INS capability may be invoked by a variety of services and network capabilities. The end user can interact with an end-user service that may invoke the INS capability. The specific enduser service that invokes INS is not within the scope of this capability description. Therefore, the INS capability is not visible to the end user, but allows an end-user service to take place. Thus, there is a "layering" of services and capabilities, and the visible end-user services may need the INS capability to complete.