Matrix ETERNITY NE System Manual 279
This parameter determines what the system should do when an external called party in speech on this trunk is put
on Hold by an extension user (Extended IP Phone user) by pressing a DSS key to dial another port.
For example, the SIP extension user on SIP1 port is in the middle of speech with an external party on CO2. If the
extension user of SIP1 presses a DSS key to call another extension port, SIP2, two situations are possible,
depending on the DSS Key Interface you configure:
i. The external caller on CO2 will be played music-on-hold, and the user on SIP1 will hear Ring Back
Tone. The call will be placed on SIP2.
ii. The external caller on CO2 will be disconnected. SIP1 user will hear Ring Back Tone. The call will be
placed on SIP2.
• Click DSS Key Interface to expand.
• Select the radio button of the desired DSS Key Interface option:
• Disconnect current call when Extended IP Phone user presses DSS key of another Trunk, while
in speech on this Trunk.
• Put current call on Hold, when Extended IP Phone user presses DSS key of another Trunk,
while in speech on this Trunk (Default).
• Click Submit.
Call Cost Calculation
If you want to Call Cost Calculation feature on this trunk,
• Click Call Cost Calculation to expand.
• Select a Call Cost Calculation Pulse Rate Option, from 1 to 4.
Each Call Cost Calculation Pulse Rate option contains a Pulse Rate Type, which you must configure.
Some service providers offer discounted rates for special days. In which case, you can configure the rates
for normal days in the Normal Pulse Rate Table and the rates for special days in the Discounted Pulse
Rate Table. See “Call Cost Calculation (CCC)”.
Configure the Pulse Rate Type according to the billing pattern of the service provider of this trunk.
Trunks following the same billing pattern should be assigned the same Pulse Rate Option.
• Define the Call Cost Calculation Schedule for the Pulse Rate option you selected.
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