ZyXEL Communications omni.net LCD+M User Manual
Technical Reference for ZyXEL omni.net series
4-11
phone number 's'.
In cases when the omni.net is unable to distinguish which POTS port to route the incoming voice
call to, your ISDN TA will alert both POTS ports by default [
ATS120.2=0]
, until the first
available port answers. Otherwise [
ATS120.2=0]
, an ambiguity resolution bit (Bit 5 of S84, or
&Ln
) can be used to determine the path.
Ambiguity Resolution AT Command
Description
AT&L0
Phone 1 has the higher priority.
AT&L1
Phone 2 and modem (for omni.net LCD+M only) has the
higher priority.
higher priority.
Table 28. Ambiguity Resolution AT Command
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
Modem
able to
answer
able to
answer
'
(
(
- -
Ring
-
(
(
'
(
- -
-
Ring
'
&L1
(
&L0
Unassigned Unassigned
(
0 -
Ring
Ring
'
&L1
(
&L0
Unassigned Unassigned
(
1 n=0
Ring
-
(
Unassigned Unassigned
(
1 n=1
-
Ring
'
'
'
(
0 -
Ring
Ring
'
&L1
(
&L0
'
'
(
1 n=0
Ring
-
(
'
'
(
1 n=1
-
Ring
'
(
(
(
- -
-
-
(
- - '
0 -
Ring
Ring
'
&L1
(
&L0
- - '
1 n=0
Ring
-
(
- - '
1 n=1
-
Ring
'
Table 29. Scenarios of an Incoming Voice Call