Specifications
Working with a Key Voice System 
GCA39-826 Rev 1, Issue 9/01  Page 20  Printed in the USA 
Understanding the General Steps to Routing Calls and Taking 
Messages
Understanding Business Hours and System Modes 
During most days, at any given time, the Key Voice system is operating in 1 of 3 modes: Day Service 
mode, Lunch Service mode, or Night Service mode. The current system mode is dictated by the system 
time of day and how the technician classified that time of day on the Business Hours setup screen. 
A technician can designate certain dates as holidays by indicating those dates on the Holidays screen. On 
any date that is a designated holiday, the Key Voice system operates in a fourth mode—Holiday mode. 
On any date that the Key Voice system is in Holiday mode, it is in that mode for 24 hours (from 12 AM 
to 11:59 PM). Therefore, on designated holidays, the Key Voice system does not cycle through 
designated Day Service, Lunch Service, or Night Service modes, as it does on non-holiday dates. 
Day and Lunch 
Service modes 
are defined by 
hours indicated 
on this screen. 
Night Service 
includes all non-
defined hours. 










