Once the Host has answered the incoming call, a dialog will start with the remote computer. The Host will send a welcome string and then prompt for a username. Once the username has been received by the Host, it will then prompt for a password. After the password is received, it verifies the username and then password. If the username and password are not verified, the Host will send "Access Denied " and disconnect the line. If the username and password are verified, the host will check to make sure the file(s) to be downloaded are available. If the system is creating files, the host will send "System is busy, please try again later" and then disconnect the line. If the file(s) to be downloaded are available, the Host will send " X Files are listed for download with Z files present", where X is the number of files the host has listed to download and Z is the number of files actually present and available for download.

The Host will then send the Menu Prompt. At this point the remote should send either a "D" or a "G". "D" is to download and "G" is for goodbye or disconnect.

When a "D" is received, the Host will initiate a Zmodem download of the file if it is available. If the file is not available, the Host will initiate a Zmodem download of a file called norslt.txt.

Below is an example session.

Host answers call and sends : "Welcome to Premier Host" & Chr$(13) & Chr$(10)

Host Sends: Date & " " & Time

Host Sends: "Enter your USER NAME: "

Host Waits for a username. Upon receipt of username,

Host Sends: "Enter your PASSWORD: "

Host Waits for a password. Upon receipt of password,

Host Sends: x " files listed to send of which" & Chr(10) & Chr(13) z " files are actually present." &

Chr(10) & Chr(13)

Host Sends: "D)ownload G)oodbye" & Chr$(13) & Chr$(10) & "Select: "

Host Waits for a response. Upon receipt of "D" a Zmodem download is started. After Download,

Host Sends: "D)ownload G)oodbye" & Chr$(13) & Chr$(10) & "Select: "

Host Waits for a response. Upon receipt of "G", Host terminates call.