Intelligent, policy-based network selection for telecommunications networks is disclosed. A network is selected for user equipment (UE) to switch/attach to based on policy logic incorporated into the UE, the carrier network, or both. The UE is dynamically configured with improved or optimal parameters for the selected network. The UE may be configured to access all of the capabilities of the selected network that its hardware supports. The carrier network may also include logic that assists with determining when to switch networks and which network to switch to. Such information may assist in determining which network is optimal for the given policy.