The CPN/BN to Host Call Identification enables CPN and BN information to be passed from Communication Manager to the ISDN Gateway, so that the ISDN Gateway can forward the information to a host for data-screen delivery to agents in an ACD split.

By delivering call-identification information such as CPN/BN and additional Communication Manager information such as the answering-agent’s extension to an adjunct network (ISDN Gateway), the adjunct automatically delivers data screens to agents for new calls and call transfers.

The figure shows a simplified diagram of a CPN- and BN-to-host arrangement. The ISDN Gateway is a UNIX or MS-DOS computer connected to Communication Manager on one side and to a host computer on the other side. The media server connection is over a synchronous interface with BX.25 protocol.