Chapter 4 - Isdn Communication Basics; Outgoing Calls; Dialing Out Using Isdn Mode; Dialing Out Using Isdn Mode Optional Speech Bearer Service - ZyXEL Communications Omni TA128 User Manual

Chapter 4 - ISDN Communication Basics

Chapter 4 - ISDN Communication Basics
In this chapter, we will cover how to initiate and receive calls over digital lines using your
Omni TA128.

Outgoing Calls

The Omni TA128 has 3 modes in which to send communication over ISDN network.
ISDN data
Analog port, Phone 1 communication
Analog port, Phone 2 communication
These modes are auto-switching based on the commands you issue. Let's take a look at
how the communication mode is automatically switched. At your terminal program,
proceed with the following instructions:

Dialing out using ISDN mode

The command "ATDI" tells your Omni TA128 that you want to make an ISDN data call
and to therefore use the ISDN mode to call out.
Type:
ATDI17142630398<enter>

Dialing out using ISDN mode optional Speech Bearer Service

Omni TA128 supports ISDN data utilizing Speech Bearer Service. To Enable this
function, you need to set S-register S83 bit 7 to 1, or ATS83.7=1. This function is useful
in the areas where ISDN service providers charge lower usage rate for voice (speech)
calls. To enable this function, type:
ATS83.7=1<enter>
To disable it, type:
ATS83.7=0<enter>
Dialing out for Analog Adapter Port 2
Using the "B" command following the "ATD" will tell your Omni TA128 to automatically
switch call to analog adapter, Phone 2, once dialing is complete.
Type:
ATDB17146930762<enter>

Dialing out for Analog Adapter Port 1

Using the "A" command following the "ATD" will tell your Omni TA128 to automatically
switch call to analog adapter, Phone 1, once dialing is complete.
(Make an ISDN call)
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