Patent ID: 7760863

Claim:
A system for providing a caller identification with name service, comprising: a switching control point having a caller identification with name database and a custom caller identification with name database, the switching control point to determine whether an originating number and a destination number are assigned by a communication service provider to respective first and second devices associated with a same centrex subscriber entity as part of a centrex service provided by the communication service provider to the subscriber entity, wherein the centrex service comprises a central office based switched telephone service between the first and second devices on behalf of the subscriber entity, to choose between the custom caller identification with name database and the caller identification with name database based on whether the originating and destination numbers are assigned to the subscriber entity, to query the chosen one of the custom caller identification with name database and the caller identification with name database to obtain caller identification with name information, and to provide the caller identification with name information to a destination service switching point, the destination service switching point to provide the caller identification with name information to the second device as part of the caller identification with name service; and a signaling system seven link connecting the destination service switching point to the switching control point.