AudioCodes E-SBC User Manual page 615

CHAPTER 24 Trunk Groups
Parameter
■ [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] Always Descending = The highest available channel in the
Trunk Group is selected, and if unavailable, the next lower
channel is selected.
■ [5] Dest Number & 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 is
selected.
✔
For the third incoming call, the second channel of Trunk 0 is
selected.
■ [9] Ring to Hunt Group = The device allocates IP-to-Tel calls
to all the FXS ports (channels) in the Trunk Group (i.e., a ringing
group). When a call is received for the Trunk Group, all
telephones connected to the FXS ports belonging to the Trunk
Group start ringing. The call is eventually received by whichever
telephone first answers the call (after which the other phones
stop ringing). This option is applicable only to FXS interfaces.
■ [10] Select Trunk by Supp-Serv Table = The BRI port/module
is selected according to the settings in the Supplementary
Services table (see
Supplementary Services), allowing the routing of IP-to-Tel calls
to specific BRI endpoints according to extension number. This
option is applicable only to FXS and BRI interfaces.
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Mediant 1000 Gateway & E-SBC | User's Manual
Description
Configuring Multi-Line Extensions and