Chapter 8 Troubleshooting 179Network Managers Guide for Symposium TAPI Service Provider for Succession, release 3.0A call handle remains valid after a call is dropped to enable Microsoft TAPI to usecall operations such as lineGetCallInfo to retrieve information about a call, forexample for logging purposes. Microsoft TAPI eventually uses the linCloseCallcommand to shut down operations for the call and release the call handle.No telephony devices appear in TCMAppIf many TNs in a large database are removed and new ones are added, TCMAppadds the new lines to the end of the list of available telephony devices. If youcannot see any telephony devices, scroll down to find the newly added TNs.Connectivity problems and solutionsTable 20 provides troubleshooting solutions for a range of connectivity issues thatyou can encounter.Table 20 Resolving connectivity issuesProblem SolutionSymposium TAPI SP does notload and you receive the followingerror message: Connect error,host %s %dThis error message indicates that a connection cannot be made toMeridian Link Services on the SCCS or on the Succession switch. Usethe ping command to check the connection, the host name, and the IPaddress of the SCCS or the Succession switch.The connection to the Successionswitch cannot be established. Theswitch tries to connect but doesnot give a registration associationidentifier.• On the Succession switch, use mlusr commands to check MeridianLink Services operation on the Succession switch. Refer to theSuccession product documentation for information.• Check the Symposium TAPI SP configurations to ensure that allvalues are correct.A client application cannot accessSymposium TAPI SP.• Verify that Symposium TAPI SP is registered and operational.• Access the Windows task manager by right-clicking the mouse onthe Windows menu bar to verify that the TAPISRV application isrunning.Client applications are notinitialized by Symposium TAPI SP.• On the Succession switch, use mlusr commands to check MeridianLink Services operation on the Succession switch. Refer to theSuccession product documentation for information.• Check the Symposium TAPI SP configurations to ensure that allvalues are correct.• Access the Windows task manager by right clicking the mouse onthe Windows menu bar to verify that the TAPISRV application isrunning.