AudioCodes Mediant 500 E-SBC, User Manual

Page: 356 / 920

User's Manual 356 Document #: LTRT-10437
Mediant 500 E-SBC
Table 22-2: Trunk Group Settings Parameter Descriptions
Parameter Description
Trunk Group ID
CLI: trunk-group-id
[TrunkGroupSettings_TrunkGr
oupId]
Defines the Trunk Group ID that you want to configure.
Channel Select Mode
CLI: channel-select-mode
[TrunkGroupSettings_Channel
SelectMode]
Defines the method by which IP-to-Tel calls are assigned to the
channels of the Trunk Group.

[0] By Dest Phone Number = The channel is selected
according to the called (destination) number. If the number is
not located, the call is released. If the channel is unavailable
(e.g., busy), the call is put on call waiting (if call waiting is
enabled and no other call is on call waiting); otherwise, the call
is released.

[1] Cyclic Ascending = The next available channel in the Trunk
Group, in ascending cyclic order is selected. After the device
reaches the highest channel number in the Trunk Group, it
selects the lowest channel number in the Trunk Group, and
then starts ascending again.

[2] Ascending = The lowest available channel in the Trunk
Group is selected, and if unavailable, the next higher channel
is selected.

[3] Cyclic Descending = The next available channel in
descending cyclic order is selected. The next lower channel
number in the Trunk Group is always selected. When the
device reaches the lowest channel number in the Trunk
Group, it selects the highest channel number in the Trunk
Group, and then starts descending again.

[4] Descending = The highest available channel in the Trunk
Group is selected, and if unavailable, the next lower channel is
selected.

[5] Dest Cyclic Ascending = The channel is
selected according to the called number. If the called number
isn't found, the next available channel in ascending cyclic
order is selected.
Note: If the called number is located, but the port associated
with the number is busy, the call is released.

[6] By Source Phone Number = The channel is selected
according to the calling number.

[7] Trunk Cyclic Ascending = The channel from the first
channel of the next trunk (adjacent to the trunk from which the
previous channel was selected) is selected. This option is
applicable only to digital interfaces.

[8] Trunk & Channel Cyclic Ascending = The device
implements the Trunk Cyclic Ascending and Cyclic Ascending
methods to select the channel. This method selects the next
physical trunk in the Trunk Group, and then selects the B-
channel of this trunk according to the Cyclic Ascending
method (i.e., selects the channel after the last allocated
channel). This option is applicable only to digital interfaces.
For example, if the Trunk Group includes two physical trunks,
0 and 1:

For the first incoming call, the first channel of Trunk 0 is
selected.

For the second incoming call, the first channel of Trunk 1