3Com V7111 - VCX 4 Channels Analog FXO Media Gateway User Manual page 55

Using SIP Gateway Features
Table 16
Feature Parameter
Using Hunt TrunkGroup_x = a-b, <starting number>
Groups
IsUseFreeChannel
PSTNPrefix = <prefix>, <Hunt Group ID>
AddTrunkGroupAsPrefix
This feature defines groups of Gateway ports,
called hunt groups, for routing outgoing
IP Tel calls. For example:
TrunkGroup_1 = 1–4,100
TrunkGroup_1 = 8,200
TrunkGroup_2 = 5–7,300
In this example, hunt group number 1 is
composed of channels 1 – 4 and 8.
To use the hunt group feature, it is also
required to set IsUseFreeChannel parameter
to 1, and to define routing rules, using the
PSTNPrefix.
The routing IP Tel rules define for each
called number, according to its prefix, the
Hunt Group ID to where the call is sent.
For example: PSTNPrefix = 101,1;an outgoing
IP Tel call, with called number starting with
101 is allocated to a free channel in Hunt
group number 1.
This feature applies mostly to FXO Gateways,
but in some cases it also applies to FXS
Gateways.
Add Hunt Group ID, as a prefix, to destination
number, (AddTrunkGroupAsPrefix = 1) for Tel
IP calls. This feature enables users to
differentiate incoming IP calls and apply
routing and number manipulation rules, based
on the hunt group from where the call arrived.
When using Hunt groups ChannelList and
Channel2Phone parameters are ignored.
3Com VCX V7111 VoIP SIP Gateways User Manual
Sheet of Excel Value
Utility
TG Range 1– 99
General
TGRoute
55