Silicon Laboratories Inc.

Conexant Systems, Inc.

Andrew B Webster

Sverrir Olafsson

Charles F Raasch

Burk Beadle

Craig E Borden

Robert T Otten

Nimesh Doshi

Eitan David

Stephen J McIntyre

There is provided a method of establishing voice communications over a packet network using a first computer having a first VoIP application, a first modem, a first modem audio subsystem, a microphone and a speaker. The method comprises establishing a VoIP connection with a second VoIP application using the first VoIP application; making a phone connection over a phone line using the first modem; placing the first modem in an audio mode; enabling the first modem audio subsystem to provide a voice communication path between the first modem and the first VoIP application; mixing an audio stream received from the first modem with an audio stream received from the microphone to generate a first mix; and sending the first mix to the first VoIP application.

Modem call forwarding and three-way calling features for VoIP applications

A modem to modem communication system supports call waiting services by exchanging hold request and acknowledge signals before relinquishing the line servicing incoming calls. Thereafter, the modem to modem session is reestablished without having to redial. The hold request may be denied or accepted, and may define the duration a modem will hold before hanging up. The holding modem maintains the session by fooling the higher protocol layers, making them believe that the modem is not on hold. Three-way calling services are also used to free up the shared line for outgoing calls while maintaining the session with holding modems. A table may be employed to screen incoming calls through a comparison of the caller ID information with that in the table. The table may be within the modem or the host computer. A quick startup procedure for a modem system utilizes known characteristics of a previously established communication channel to reduce the initialization period associated with subsequent connections over the same channel.

Modem with hold and quick connect functionality

A modem to modem communication system supports call waiting services by exchanging hold request and acknowledge signals before relinquishing the line servicing incoming calls. Thereafter, the modem to modem session is reestablished without having to redial. The hold request may be denied or accepted, and may define the duration a modem will hold before hanging up. The holding modem maintains the session by fooling the higher protocol layers, making them believe that the modem is not on hold. Three-way calling services are also used to free up the shared line for outgoing calls while maintaining the session with holding modems. A table may be employed to screen incoming calls through a comparison of the caller ID information with that in the table. The table may be within the modem or the host computer.

Use of modem on hold for network management and telephone access

Using modems to place modem connections on hold and to maintain upper layer network connection

Modem on hold

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Irvine, CA, United States of America

Andrew B Webster