ZyXEL Communications Omni TA128 - Manual (Page 80)

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•
AT&L0 - Phone 1 has the higher priority.
•
AT&L1 - Phone 2 has the higher priority.
Scenarios of an Incoming Voice Call Outcome
Phone 1
MSN
Matched
Phone 2
MSN
Matched
Global Call
(No Called
Party No.)
S120.2
(Default=0)
AT&Ln
(Default
n=0)
Phone 1 Phone 2
ь ы ы - - Ring -
ы ь ы - - - Ring
Unassigned Unassigned û 0 - Ring Ring
Unassigned Unassigned û 1 n=0 Ring -
Unassigned Unassigned û 1 n=1 - Ring
ь ь ы 0 - Ring Ring
ь ь ы 1 n=0 Ring -
ь ь ы 1 n=1 - Ring
ы ы ы
- - - -
- - ь 0 - Ring Ring
- - ü 1 n=0 Ring -
- - ü 1 n=1 - Ring
The default MSN sub-address (or EAZ) for 1TR6 (Old German
ISDN) of the a/b adapters are as follows:
•
Phone 1: EAZ = 4 (&ZI7=4)
•
Phone 2: EAZ = 3 (&ZI6=3)
A global call is an inbound voice call without the information of
destination phone number (Called-Party-Number) which happens
more often than not on some switches when the calling site is on
the PSTN (analog telephone). By default, the TA128 will route the
global call to both the POTS ports (make them alert). The one that
picks up the phone earlier answers the call.
AT Commands Description
ATS87.0=0 Enable POTS port 1 to accept global
calls.(Default)
ATS87.0=1 Disable POTS port 1 to accept global calls.
ATS87.1=0 Enable POTS port 2 to accept global