The portion of the variable name that follows the first period is called the tail. For the name isPrime.X.Y, the stem is ISPRIME. and the tail is X.Y. The compound variable's derived name is created by replacing each simple symbol in the tail with its value.
If you are connecting your fax machine directly to your Home Phone modem, or MTA. 1  Plug in the fax machine. 2  Connect one phone line from the port on the fax machine labeled Line or Line In to the MTA's Telephone port. 3  If you have one Home Phone line, use the port for Line 1. Connect one phone line from the wall phone jack to the port on the fax machine labeled Line. 2  Connect a second phone line from the port on the fax machine labeled Ext or Tel to the phone.
Fax machine modem classes are designated according to CPU requirements as follows: 1  Class 1: Transmission time is six minutes or less. Connects to a PC and sends data as block frames only. 2  Class 2: Transmission time is two minutes or less. Connects to a PC or other enabled device. 3  Classes 3 and 4: Transmission time is 10 seconds or less.