Specifications

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Name Description
Call hold Select if Call Hold is activated on this line. By default this is not selected.
Note:
If this function is activated, the gateways will automatically activate Call
Transfer (Either party may transfer the current call to a third party).
Caller Transfer Select if Caller Transfer is activated on this line. By default, this is not
selected. When A calls to B, B picks up the call and transfers the call to C,.
Note: The call hold must be activated before caller transfer.
Caller ID
display
Set if Caller ID display is activated on this line. By default, this is selected.
Note: In addition to number display, the Caller ID can display the names of
incoming calls as long as terminal equipments support.
Caller ID
restriction
Set if the number of this telephone is sent to the called party. By default this
is not selected.
Outgoing call
barring
Select if outgoing calls are barred on this line. By default, this is not
selected.
DND Select if “Do Not Disturb” is activated on this line. By default, this is not
selected.
Direct Dialing in
(DDI)
Set if DDI (Direct Dialing In) is activated, By default this is not selected.
Different from FXS, DDI is only used for incoming calls, and the gateways
will not send dial tone after off-hook (calling in) on user side.
Note: Reverse polarity signal must be activated on the gateways when DDI
is used.
Maintenance Select if the line is set to maintenance status, namely, stop to supply of
power for the line port. By default, this is not selected.
Polarity reversed
signal
Select if reverse polarity signal is activated on this line. By default, this is
not selected.
Note: The gateways will provide reverse polarity signal when the phone is
connected after this feature is activated.
Subscribe MWI Select if voice mail service is activated, and by default this is not selected.
(Used with “Advanced > SIP” Interface “MWI subscription” Configuration)
2.5.3 Trunk Line Features
This page is only used for configuring gateways with trunks (FXO port).
After login, click “Line > Trunk” tab to open the configuration interface.
Figure 2-11 Configuration Interface for Trunk Line Features