104 Chapter 4 Configuration guidelines213346.023 Click OK to save this information to the CDN table.To delete a CDN:1 In the CDN window scroll the entries in the DN field. Select the DN you wishto delete.2 Click Delete.3 Click OK to save these changes to the CDN table.Configuring the network TAPI/IVR tableThe IVR driver on Symposium TAPI SP uses information in the IVR host tabledatabase for the following:• to open a listening IVR port that the IVR application uses to register with theIVR driver on the TAPI server• to keep this link open between Symposium TAPI SP and the IVR system, sothat the IVR system can send call data to the TAPI serverIn a networked environment, the IVR driver uses information stored in the remotehost address table to request call data for inbound calls overflowed from a remoteSuccession swtich.Refer to Chapter 6, “Networked TAPI/IVR,” on page 127 for information aboutnetworking and IVR features for Symposium TAPI SP.