In {TAIL ~ an adapter} for interfacing between a telephone central office and a private branch exchange where said PBX also interfaces with a plurality of telephone extensions and with {HEAD ~ a voice message system}, the method comprising the steps of 
In { TAIL ~ an adapter } for interfacing between a telephone central office and a private branch exchange where said PBX also interfaces with a plurality of telephone extensions and with { HEAD ~ a voice message system } , the method comprising the steps of
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