Chapter 4 Configuration guidelines 87Network Managers Guide for Symposium TAPI Service Provider for Succession, release 3.09 To capture information about route data blocks (RDB), enter the followingcommands in overlay 21:> LD 21REQ: PRTTYPE: RDBCUST: 0 (or customer number)~ACOD 10 To capture information about control directory number (CDN) blocks, enterthe following commands in overlay 23:> LD 23REQ: PRTTYPE: CDNCUST: 0 (or customer number)~CDN 11 Ater you dowload the information from the overlays, stop the HyperTerminalapplication.12 Close the HyperTerminal application to save the information.Converting the text fileTo convert the text file containing switch information, perform the followingtasks in the Symposium TAPI SP configuration application:Note: Download only the CDNs that you require for TAPI operation. Ifyou download other CDNs, you must delete them after the download iscomplete.