PBX Integration Board User's Guide

Dialogic

PBX Integration Board User’s Guide

value of eight [0x08] indicates ON), while the green light has six possible

values. The status of the indicators is obtained by bitwise-ANDing the

returned value from the green light with the value from the red light (green

light value + red light value). In other words, the value for a line indicator in

use with a call (after ANDing with 0x0f, all the values shown below in the

least significant byte value) would be nine--0x08 (for red light on) + 0x01 (for

green light on). The status conditions for each byte (least significant) of the

green light are defined as indicated in

Table 2.

Table 2. Avaya 7434 and 8434 LED Indicator States

State Value (Hex)

off

0x00

0x01

ringing

0x02

hold

0x03

error

0x04

unknown

0x05

Reading LED Indicators

The Dialogic

PBX Integration Board can determine the state of its LED

indicators by using the d42_indicators( ) function to retrieve the LED

indicators data. This function places the Line Indicator data (34 bytes) in an

application buffer. Bytes 1-34 contain the indicator status for Memory Keys

00-33, respectively (see

Table 3).

Table 3. Avaya 7434 and 8434

Direct Key Dialing Strings for Feature Keys

Byte Key Description Dial String

1 Feature Button 00 <ESC>KA

2 Feature Button 01 <ESC>KB

3 Feature Button 02 <ESC>KC