Manually Switching Communication Modes; Placing The Call; Incoming Calls - ZyXEL Communications Omni TA128 User Manual

Chapter 4 - ISDN Communication Basics
Type:
ATDA17146930762<enter>
Note: You must have an analog modem connected to your POTS port before you
issue this command.

Manually switching communication modes

The manual switching functions will only be necessary if your communication software
does not allow you to change your dial-up string.
Conventional dialing commands: ATD, ATDT and ATDP, used by many existing
communication software, can be mapped onto one of the new dialing commands
according to the AT&O setting as follows:
AT Command
AT&O0
AT&O2
AT&O3
The factory default is AT&O2 . This means the modem will select ISDN data mode when
you do not specify which communication mode to use in your dial command (i.e. ATD or
ATDT).

Placing the Call

To initiate a call, choose the proper communication mode and configure the mode
according to the bearer service (or protocol) you want to use. Here are some simple
commands that will be useful when placing a call:
Command
ATBn
ATDL

Incoming Calls

When a call comes in, it will be carried by one of the following protocols:
V.120
HDLC PPP, MPPP or SLIP
V.110
X.75
or the call may be initiated by an analog device.
This section will provide some general guidelines for setting up the device for call answer
handling. Be aware that the Omni TA128 will not automatically answer a call unless S-
register S0 is set to a value greater than 0 (zero). If S-register S0=0, the Omni TA128 will
only report "RING" to your terminal program. It can also respond with an audible tone
that will allow you to decide whether or not you should to take any action.
Dial string it will map to
ATD, ATDT and ATDP are the same as ATDB
ATD, ATDT and ATDP are the same as ATDI
ATD, ATDT and ATDP are the same as ATDA
Description
Changes ISDN B channel protocol setting
Re-dials the last dialed telephone number
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