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Table 6-12 ISDN Trunk Configuration Settings
Field Description
Trunk Group
ID number of this ISDN trunk group. A valid number ranges
t should not overlap with existing Analog
from 1 to 31. I
PSTN trunk groups.
Trunk Channels
s three channels, two B
and one D channels. The
Trunk Channels
displays B
Each physical ISDN port occupie
channels only. User only needs to select one or more B
channels here. E.g. 1,2 is for the first physical port, 3,4 is for
the second physical port and so on.
Description
Arbitrary description information.
Port Selection
search for an available port in the group.
Rotating
means to force ports being selected by turns to even cost.
Select to
Switch Type
fault.
Supports European switch type by de
DID Type
DID means direct inward dialing (also called DDI in Europe).
Select a preferred type,
None DID
,
Extension DID
,
DID by
er
config
incomi
Number
and
DID by Privilege
from the list and then ent
uration in
DID Prefix
and
DID Stripping
to have the
ng calls directed to the corresponding trunk.
None DID
t for this trunk.
When selected
None DID
, all incoming calls will enter IVR
system instead of directly dial to a specified extension.
Select a preferred IVR from IVR lis
Extension DID
list to be an u
r incoming calls to
this trunk. If prefix or stripping has been given, the result of
When selected
Extension DID
, select an extension in the
nconditional destination fo
digit manipulation is dialed in a DTMF string after the call
has been answered by the DID extension as an automatic
2
nd
dialing.
)
If you set a DID extension in a trunk, then only that
extension can use this trunk to call out, and all incoming
calls to this trunk will connect to that extension directly.
DID By Number
When selected
DID By
number,
enter configurations in
DID
direct line of the extension.
Prefix
and
DID Stripping
to have the incoming calls
directed to the corresponding extension derived by number
manipulation. The ISDN trunk numbers is therefore
regarded as the
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