| 摘要 |
<p>Various devices may benefit from Proxy-Call Session Control Function (P-CSCF) restoration. For example, dual mode end devices of an IP Multimedia Subsystem may benefit from P-CSCF restoration. A method can include selecting a preferred radio access type from a plurality of radio access types. The method can also include sending a first registration request to a network via the preferred radio access type to register with a first node of the network. The method can further include detecting whether a service was delivered by the preferred radio access type. When the service was not delivered by the preferred radio access type, the method can include sending a second registration request to the network via the preferred radio access type to register with a second node of the network.</p> |
