Specifications

) 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 or By Privilege, 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
13
Associate an IVR menu with incoming calls to this trunk.
This is mandatory unless the trunk is configured for DID.
Usergroup
14
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 any appropriate usergroups to select
initially. One can come back later to revise it, once the
expected usergroups are added.
Advanced Settings Select to see more settings shown below.
Input/Output Gain Voice amplification or attenuation in dB scale to adjust
input/output volume of a PSTN line.
Minimum Disconnection Tone Minimum volume level of the disconnection tone. If a PSTN
trunk is found to have disconnection problem and voice
sounds low, choose a lower dB.
Delay Before/After Answering Delay in seconds before and after answering a call from
13
Please refer to 5.9 for details.
14
Please refer to 4.2 for details.
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