Manual File Transfer 

If the user wishes to call the destination for a file transfer and begin file transfer after he/she has spoken with the recipient, the following steps should be taken:

1) The sender of the file should select Send from the Manual Transfer menu.
2) The receiver should wait until he/she hears three short beeps in their hand set, and select the Receive menu item in the Manual Transfer menu..

The modems at both ends begin negotiation and connecting.  After the connection has been established successfully, a message would be displayed for approximately 5 seconds confirming the connection and telling the users to hang up their hand sets. 

After the file transfer has completed, both modem would go off line and surrender the phone line back to the users.