Telephone switching system having automated call hold...

Details Telephone switching system having automated call hold... Telephone switching system having automated call hold...

H - Electricity

04

M

344/16, 379/33

H04M 3/42 (2006.01) H04Q 3/62 (2006.01)

Patent

CA 1065037

TELEPHONE SWITCHING SYSTEM HAVING AUTOMATED CALL HOLD FACILITIES Abstract of the Disclosure A wired logic PBX switching system is disclosed in which a camp-on circuit is used to provide automated call hold service. A station user places an existing call on hold by flashing the station switchhook contacts and dialing a predetermined code. The dialing of the code disconnects the station from the first call and places the trunk circuit serving the first call on hold. A second call may then be placed from the station. Upon termination of the second call, the hold condition is removed from the trunk circuit and a connection is reestablished from the trunk circuit to the station.

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