ZyXEL Omni TA 128 User Guide - Page 92

Answering a Call

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The suffix digit to an ISDN phone number in a dial out command will be used as the destination EAZ (in the Destination Address Welement) in the SETUP message sent to the destination. If this suffix digit is omitted, the switch will assume the EAZ is 0. Each type of outgoing call can be assigned with one origination EAZ by using the command AT&ZOx=Origination_EAZ, (where x = I for ISDN data calls, A for the analog adapter 1, and B for the analog adapter 2). The command AT&ZOx=// removes the assignment of the origination EAZ. The number assigned by AT&ZOx=Origination_EAZ, if any, will be used for the Origination Address W-element while dialing. The default settings of origination EAZ for all types of calls are UNASSIGNED, meaning the SETUP message sent by the TA128 contains no Origination Address W-element. The command AT&ZO? can be used to list the current settings of the origination EAZs. Answering a Call Incoming call will be identified as either an ISDN data call or a voice call (including the voice-band-data). ISDN data calls will be routed to the digital communications portion of the TA128. Voice calls or voice-band-data calls will be assigned to the analog adapters. Answering a Call for DSS1 The Multiple Subscriber Number (MSN) supplementary service provides the possibility for assigning multiple ISDN numbers to a single ISDN BRI line. Calling users can select, via the public network, one or more distinct terminals on a BRI line. In some areas however, it is very expensive to get additional subscriber numbers. The subaddress, which is transferred 80

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80
The suffix digit to an ISDN phone number in a dial out command
will be used as the destination EAZ (in the Destination Address W-
element) in the SETUP message sent to the destination. If this
suffix digit is omitted, the switch will assume the EAZ is 0.
Each type of outgoing call can be assigned with one origination
EAZ by using the command
AT&ZO
x
=Origination_EAZ
, (where
x
=
I
for ISDN data calls,
A
for the analog adapter 1, and
B
for the
analog adapter 2).
The command
AT&ZOx=//
removes the assignment of the
origination EAZ.
The number assigned by
AT&ZOx=Origination_EAZ
, if any, will
be used for the Origination Address W-element while dialing. The
default settings of origination EAZ for all types of calls are
UNASSIGNED
,
meaning the SETUP message sent by the TA128
contains no Origination Address W-element.
The command
AT&ZO?
can be used to list the current settings of
the origination EAZs.
Answering a Call
Incoming call will be identified as either an ISDN data call or a
voice call (including the voice-band-data). ISDN data calls will be
routed to the digital communications portion of the TA128. Voice
calls or voice-band-data calls will be assigned to the analog
adapters.
Answering a Call for DSS1
The Multiple Subscriber Number (MSN) supplementary service
provides the possibility for assigning multiple ISDN numbers to a
single ISDN BRI line. Calling users can select, via the public
network, one or more distinct terminals on a BRI line.
In some areas however, it is very expensive to get additional
subscriber numbers. The subaddress, which is transferred