Telephonic communications – Supervisory or control line signaling – Signal reception at substation
Reexamination Certificate
2006-05-23
2006-05-23
Tran, Sinh (Department: 2646)
Telephonic communications
Supervisory or control line signaling
Signal reception at substation
C379S067100, C379S068000, C379S072000, C379S080000
Reexamination Certificate
active
07050572
ABSTRACT:
A telephone set is provided that includes a control section that, when detecting an off-hook operation, instructs a tone generator and a codec to stop a transmission of an incoming call and simultaneously instructs, using an awaiting voice generation instructing function section, the tone generator to produce a signal voice informing an awaiting state and the codec to transmit it to a handset. At the same time, the control section generates an off-hook signal and transmits it to a packeting section. The off-hook signal is incorporated in the packet to be transmitted by the packeting section and is transmitted from a packet network interface to a packet network.
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Hayes & Soloway P.C.
NEC Corporation
Singh Ramnandan
Tran Sinh
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