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.
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
'
(
(
- -
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
