Telephonic communications – Reception of calling information at substation in wireline... – Call waiting associated with caller id information
Reexamination Certificate
2004-12-29
2009-12-29
Smith, Creighton (Department: 2614)
Telephonic communications
Reception of calling information at substation in wireline...
Call waiting associated with caller id information
C379S215010
Reexamination Certificate
active
07639790
ABSTRACT:
The present invention enables users of packet-switched network services, e.g., VoIP network services, to hear a very gentle whispering tone that quietly conveys the identity of the calling party when they are engaged in conversation and to receive a call-waiting signal. The tone is audible only to the called party but does not mute the ongoing conversation path. This enables subscribed users to hear their ongoing conversation while receiving the whispering tone.
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European Search Report, date of mailing Apr. 21, 2006.
Croak Marian
Eslambolchi Hossein
AT&T Corp.
Smith Creighton
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