ranges from 1 to 31. It should not overlap with existing
ISDN PSTN trunk groups.
Trunk Type
Select the port type, FXO or FXS. If selecting FXS,
users can see By Number and By Privilege in the DID of
Extension list, and be able to configure DID Prefix and
DID Stripping.
Trunk Ports
Select one or more FXO or FXS ports for this Analog
PSTN trunk.
Description
Arbitrary description information.
Port Selection
Click to search for an available port in the group.
Rotating means to force ports being selected in turns
to even cost.
DID Type
DID means direct inward dialing (also called DDI in
Europe). Select a preferred type, None DID, Extension
DID, and DID by Privilege from the list and then enter
configuration in DID Prefix and DID Stripping to have
the incoming calls directed to the corresponding trunk.
None DID
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 list for this
trunk.
Extension DID
When selected Extension DID, select an extension in
the list to be an unconditional destination for incoming
calls to this trunk. If prefix or stripping has been given,
the result of 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 Privilege
When selected DID By Privilege, select a usergroup in
the list as the privilege of inbound calls from this trunk.
Enter configuration in DID Prefix and DID Stripping to
20
