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Section4 - Setup and Debug
System Operations
Busy State Management
Calls and busy state are managed according to the programmed system times
• Pick -up waiting time: this is the duration from when a call is made from a Door Station to when the called Monitor
is picked up; the system will cut off the call after this period of time.(the default setting is 30 seconds)
• Maximum talking time: this is the duration time that the indoor user can talk to the out door visitor. After this
period the conversation will be cut off automatically by the system to free the line.(the default setting is 90
seconds)
• Maximum intercom time: this is the duration time that the indoor user can talk to the other indoor user when
having a intercom conversation. After this period the conversation will be cut off automatically by the system to
free the line.(the default setting is 30 seconds)
• Maximum monitoring time: this is the duration time that the indoor user can monitor (surveillance) via the Door
Station or CCTV camera, when press the Monitor button on the Monitor.(the default setting is 30 seconds)
• Busy time: this indicates the period when a door unit can not place calls because a previous call or conversation
is in progress.(maximun busy time = pick -up waiting time + maximum talking time)
The system works as follows when a Door Station call is made
• A call from any Door Station switches the entire system to pick -up waiting time mode (30 seconds). Busy state is
prolonged (maximum talking time). The system returns to standby mode at the end of the conversation or after
the timeout.
• An intercom call switches the Door Station(s) to busy mode for the pick -up time(30 seconds). When the called
user picks up, busy state is prolonged for other 60 seconds (maximum intercom time). The Door Station(s)
return to standby mode at the end of the conversation or after the timeout.
• It can be interrupted by the Door Station call when the Monitor is in intercom pick -up waiting time or in intercom
conversations
• A intercom call or a monitor(surveillance) operation will not affect the system busy state. Intercom call will be
ignored by the system when a Door Station call is calling or a Door Station talking is in process.
• The door bell call button call will not affect the rest of the system, but will interrupt the called Monitor if the
Monitor is in monitoring(surveillance) or in intercom talking.
• Door Station call has the highest priority, monitor(surveillance) operation comes next, and the intercom operation
has the lowest priority.
Note that all the timings mentioned here can be change by the DT CONFIG software, which is
included in the product. See the DT CONFIG software in section 5.

When door statin call or Door Station conversation is in process, the rest of the Monitors in the
system will be turn into busy state, the busy LED on the Monitor will turn into red, and the screen of
the Monitor can not be opened, have to wait untill the call or conversation is over.
