Toshiba DK40I 用户手册

This feature allows the programming of up to three time zones for a given channel group, thus 
enabling different min/max scenarios and different services for each channel group.

In the example shown in 

, Channel Group 1 is set for one time zone that starts at 00:00 

and ends at 23:59. 

Channel Group 2 is set for two time zones. Time zone 1 starts at 00:00 and ends at 12:00 hours; 
time zone 2 starts at 12:00 hours and ends at 23:59 hours.  

Channel Group 3 is set for three time zones. Time zone 1 starts at 00:60 hours and ends at 12:00 
hours. Time zone 2 starts at 12:00 hours and ends at 18:00 hours. Time zone 3 starts at 18:00 hours 
and ends at 00:60 hours.

An example of an application for time zones would be a cable TV provider. During the day, they 
would have more outbound trunk lines set up for telemarketing. In the evening, there would be 
more inbound traffic as people would be ordering subscriptions services. Therefore some lines 
would be shared by more than one trunk group to ensure that all the traffic can be handled. There 
would also be several lines reserved for DID calls.

There are three programs used to set up the Call-by-Call feature.

Program *67-5 – Multiple Time Zone Settings. This program maps the channel groups to the 

time zones.

Program *67-3 – ISDN Trunk Group Minimum Channel Reservation. This program sets the 

number of reserved channels for a given trunk group. These channels will be reserved to a type of 
service, such as 800 calls, DID, etc. You can specify up to 47 B-channels as a minimum if 
D-channels are shared using Non-Facility Associated Signaling.

Available shared channels is the total number of channels in a channel group (23 or 47) 
minus the total reserved (minimum) channels assigned to all trunk groups within the 
channel group.

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