Matrix EPABX Vision-206S, Системное руководство

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Matrix
48 Vision System Manual
Call Duration Control (CDC)
What’s this?
Call Duration Control (CDC) helps the customer to restrict the duration of the calls whether, incoming or
outgoing external calls. This feature disconnects incoming or outgoing external calls after a set time.
People tend to talk about sports, movies, politics and such other subjects over telephone. Now, these topics
are generally not related to business. Moreover, such topics tend to take more time than the business talk for
which the call was originally made. If duration of each call can be restricted, people will talk to the point and not
drift to other unproductive talk. There are many advantages:
• Reduction in telephone bills.
• Trunks will be easily available for other outgoing calls. More business calls can be made during working
hours leading to more business.
• Your trunks remain free for incoming calls. More customers can call.
• People spend more time on the actual job on hand rather than on telephone. This means increased
productivity.
How to use it?
• Call Duration Control can be set for each station.
• Call Duration Control for External Outgoing calls can be enabled/disabled.
• Call Duration Control for Incoming calls can be enabled/disabled.
• Call Duration Control for Internal calls can be enabled/disabled.
• Enabling CDC for different types of calls, defining the CDC timer, assigning allowed and denied lists, etc.
forms a table called CDC Table.
Each CDC Table looks like:
Parameter Value
Internal Call Control Yes/No
Incoming Call Control Yes/No
Outgoing Call Control Yes/No
Allowed List List Number from 0 to 7
Denied List List Number from 0 to 7
CDC Timer 000-999 seconds
CDC Disconnection Flag Yes/No
• Maximum four CDC tables can be programmed.
• One such table can be assigned to the station user.
• All CDC tables are available by default, which satisfies most of the requirements. Hence these tables can
be directly assigned to the stations.
• By default,
CDC Table Meaning
0 CDC OFF for all calls
1 CDC ON for Outgoing STD and ISD calls
2 CDC ON for Outgoing 95, 98, STS and ISD calls
3 CDC ON for all Outgoing calls
• However for special types of requirements, customized Allowed Lists and Denied Lists should be
programmed and should be assigned to a CDC table. Then after this CDC table should be assigned to a
station. Please refer “Allowed and Denied Lists” for more details.
• For example, to disconnect all calls starting with ‘0’ except those starting with ‘022’, program an allowed list
with string ‘022’ and denied list with string ‘0’ and assign these lists to the CDC table.
•
By default, CDC table 0 is assigned to each station.