公开(公告)号：WO2006121545A3

公开(公告)日：2006-11-16

申请号：PCT/US2006/013060

申请日：2006-04-07

Applicant: CALLWAVE, INC. ,  SMITH, Robert ,  ERRINGER, Alan

Inventor： SMITH, Robert ,  ERRINGER, Alan

IPC: H04B3/20 ,  H04L12/66 ,  H04L12/56 ,  H04L12/28

Abstract: The present invention is related to methods and systems for reducing or canceling echoes during fax communications In an embodiment, during a fax call, a first fax signal from a first fax device intended for a second fax device is detected. Based at least in part on detecting the first fax signal from the first fax device (200) or on the termination of the first fax signal, an echo audio packet is muted, wherein the echo audio packet is at least partly the result of the first fax signal being transmitted over a network, the network including at least a data network (203).

公开(公告)号：EP1884032A2

公开(公告)日：2008-02-06

申请号：EP06740728.8

申请日：2006-04-07

Applicant: Callwave Inc.

Inventor： SMITH, Robert ,  ERRINGER, Alan

IPC: H04B3/20 ,  H04L12/66 ,  H04L12/56 ,  H04L12/28

CPC classification number: H04M11/066 ,  H04M3/002 ,  H04M2201/52

Abstract: The present invention is related to methods and systems for reducing or canceling echoes during fax communications In an embodiment, during a fax call, a first fax signal from a first fax device intended for a second fax device is detected. Based at least in part on detecting the first fax signal from the first fax device (200) or on the termination of the first fax signal, an echo audio packet is muted, wherein the echo audio packet is at least partly the result of the first fax signal being transmitted over a network, the network including at least a data network (203).