AT&T 3.0 manual System Requirements For Touch-Tone Receivers, If these tests fail, replace the MFM

System Requirements

for Touch-Tone Receivers

11 If these tests fail, replace the MFM.

Table 3–2. MLX Telephone Display Buttons

Button	Display
Home	HOME
Menu	MENU
More	MORE
Inspct	INSPECT
Each unlabeled display button	DISPLAY BUTTON nn; where nn is 1–10, depending
	on which button you press.

System Requirements

for Touch-Tone Receivers

The following symptoms indicate that the system needs more touch-tone receivers (TTRs).

■Single-line telephone users do not get dial tone when they lift the handset to dial out.

■The voice messaging system fails to transfer calls.

■Calls ail to ring or go to coverage prematurely.

NOTE:

If these symptoms are present, use the following steps to calculate the system requirements for touch-tone receivers.

1Determine the number of TTRs required for the voice messaging system (if present) from Table 3-3.

3-8Telephone Problems