Telephonic communications – Audio message storage – retrieval – or synthesis – Interaction with an external nontelephone network
Reexamination Certificate
2003-04-10
2009-11-03
Kuntz, Curtis (Department: 2614)
Telephonic communications
Audio message storage, retrieval, or synthesis
Interaction with an external nontelephone network
C370S356000, C370S359000
Reexamination Certificate
active
07613282
ABSTRACT:
An improved telephony adapter compresses voice data, creates IP packets, and prioritizes the voice IP packets over the data IP packets. Preferably, the compression and packetization interval is such that the bandwidth occupied by the voice IP packets is approximately half of the minimum average available bandwidth in the upstream direction, thereby maintaining acceptable latency and voice quality of the speech. Further enhancement is achieved by causing the ISP to also give priority to voice packets that are destined to the telephony adapter, over the data packets that are destined to the telephony adapter.
REFERENCES:
patent: 6400723 (2002-06-01), Burg et al.
patent: 6671262 (2003-12-01), Kung et al.
patent: 6768722 (2004-07-01), Katseff et al.
patent: 6917610 (2005-07-01), Kung et al.
patent: 6970909 (2005-11-01), Schulzrinne
patent: 2001/0012293 (2001-08-01), Petersen et al.
Cherchali Ali M.
Gudelis Marius Jonas
Lester William G.
McLaughlin Robert J.
AT&T - Brendzel
Kuntz Curtis
Phan Joseph T
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