Digital private branch exchange and method of manufacturing...

Details Digital private branch exchange and method of manufacturing... Digital private branch exchange and method of manufacturing...

H - Electricity

04

Q

344/18

H04Q 3/42 (2006.01) H04Q 11/06 (2006.01)

Patent

CA 1332459

?BSTRACT OF THE DISCLOSURE A digital private branch exchange including a digital trunk which in turn includes a connection request reject channel and a method of controlling the exchange. If there is a connection request to the reject channel, an audible tone signal indicative of the rejection of the connection request is read from a memory provided in the digital trunk, and sent to the extension telephone set which has made the connection request.

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