Specifications

directed to the corresponding extension derived by number
manipulation. The SIP trunk numbers is therefore regarded
as the direct line of the extension.
) 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.
) If selecting By Number, the "number" being
manipulated for extension DID is the called
(destination) number. As a result, one should confirm
what prefix, usually the area code, would be given by
the service provider side so that a correct stripping
could be configured accordingly.
DID Prefix A digit string to be prefixed to the incoming called number
after stripping.
DID Stripping A number of leading digits to be stripped from the original
called number. If prefix or stripping has been given but DID
of Extension is not By Number, 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.
Language Preferred language for system instructions heard from the
trunk.
IVR List
10
Associate an IVR menu with incoming calls to this trunk.
This is mandatory unless the trunk is configured for DID.
Usergroup
11
of Privilege When disabled DID, click a usergroup in the list whose
reachability to other usergroups and trunks will be used as
the privilege of inbound calls from this trunk.
) There may not be appropriate usergroups to select
initially. One can come back later once the expected
usergroup has been added.
10
Please refer to 5.9 for details.
11
Please refer to 4.2 for details.
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