The client setup argument sets up the machine as a client of the telephony server; however, it does not verify that the machine to connect to is actually a telephony server. After a machine is set up as a client, the machine can access all local TAPI devices and any remote TAPI devices that the user has access to (access that was granted by the telephony administrator). If the client machine cannot find the telephony server or if there is an error connecting to the telephony server, TAPI continues using only the local TAPI devices.
TCMSETUP /C telephony_server_name
where: