Key telephone system signal priority arrangement

Details Key telephone system signal priority arrangement Key telephone system signal priority arrangement

H - Electricity

04

M

344/17, 379/18,

H04M 3/42 (2006.01) H04M 1/72 (2006.01) H04M 3/38 (2006.01) H04M 9/00 (2006.01)

Patent

CA 1079880

KEY TELEPHONE SYSTEM SIGNAL PRIORITY ARRANGEMENT Abstract of the Disclosure A key telephone system signal priority arrangement is disclosed wherein each type of call in a key telephone system is assigned a distinctive priority. When a cell is directed to a station engaged in an existing lower priority call, a warning tone is given to both parties engaged in this existing call. The existing call is then automatically placed on hold while the preempting call is completed to the called station such that the called station can answer the preempting call "hands-free".

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