Telephone Connection; Basic Telephone Service; Supplementary Services; Dtmf Keypad - ADTRAN Express L128T S User Manual

Chapter 2. Installation

TELEPHONE CONNECTION

Basic Telephone Service

The Express L128T S/T supports an analog DTMF telephone type
(AT&T 2500) with the POTS interface. Two telephones or other analog
devices (like a fax machine or modem) plug into either RJ-11 jack (la-
beled with drawings of telephones) on the rear of the unit. Progress
tones can be generated in A-LAW or µ-LAW format.

Supplementary Services

Supplementary services such as call holding, three- or six-way confer-
encing, call transfer, and call waiting are fully supported by the Ex-
press L128T S/T on a touch-tone telephone. Table 2-1 on page 2-3
explains how the flash-hook is used for handling multi-call situations.
Supplementary services are not supported for all countries.

DTMF Keypad

The following functions are performed on a touch-tone phone:
Disable call waiting:
Enable call waiting:
Redial last number:
Enter Phone Number 1:
Enter Phone Number 2:
2-2
Press **0
Press **1
Press **5
Press **8XXXXXXX* (where
XXXXXXX is the phone number.
The terminal * indicates end of digits.
Press **9XXXXXXX* (where
XXXXXXX is the phone number. If only
one phone number is assigned, this
does not have to be entered.)
The terminal * indicates end of digits.
Express L128T S/T User Manual 61202070L3-20