Voice data modem, voice data method and voice data modem system

• US 5,699,413 A
• Filed: 12/13/1995
• Issued: 12/16/1997
• Est. Priority Date: 12/13/1995
• Status: Expired due to Term

• Current Assignee: CIF Licensing LLC
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Sridhar, Manickam R.
• Primary Examiner(s): Chan, Wing F.
• Application Number:
  US08/572,201
• Time in Patent Office: 734 Days
• Field of Search: 379/97-99, 379/93, 379/202, 379/387, 379/399, 379/402, 379/405, 379/414, 370/259, 370/495, 370/496, 375/222, 375/295
• US Class Current: 379/93.09
• CPC Class Codes: H04M 11/06 Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors

Abstract

A system (10) and method for simultaneously enabling a voice and a data session has a voice data modem (200) coupleable to a data port (255), a voice jack (240), and a telco jack (280). The data port (255) is connected to data terminal equipment (100), the voice jack (240) is connected to a telephone, and the telco jack (280) is connected to a telephone network (120). The data ports for each of a plurality of voice data modems are connected to other data terminal equipment (180, 181, 182), the voice jacks are connected to first extensions of a net telco jacks are connected to different, second extensions of the network. The voice data modem (200) may receive multiplexed voice and data over a single, first extension of the network through the telco jack, (280), dumultiplex and decompress the voice and data, transmit or retransmit the voice separately from the data over a second network extension via the voice jack (240), and transmit the data to data terminal equipment through a data port or interface (255). The voice data modem (200) used in such a system (10) has a dial call progress unit (245) capable of both initiating and terminating a telephone call through either the voice jack (240) or the telco jack (280).

Claims

1. A method for terminating a simultaneous voice session and a data session over a first network telecommunications connection, the simultaneous voice session and data session occurring between and among a plurality of locations via a plurality of voice data modems, the plurality of voice data modems including a local voice data modem and an intermediate voice data modem, the first network telecommunications connection having been established between the local voice data modem and the intermediate voice data modem, the data session occurring between first data terminal equipment connected to the local voice data modem and second data terminal equipment connected to the intermediate voice data modem, the voice session occurring between a local telephone connected to the local voice data modem and a remote telephone at a third location of the plurality of locations over a second telecommunications connection having been established between the intermediate voice data modem and the remote telephone, the method comprising:

(a) issuing a disconnection request to the local voice data modem and the intermediate voice data modem;

(b) determining whether the disconnection request is a voice session disconnection request;

(c) determining whether the disconnection request is a data session disconnection request;

(d) when the disconnection request is a voice session disconnection request, terminating the voice session connection after the data session has ended; and

(e) when the disconnection request is a data session disconnection request, terminating the data session connection after the voice session has ended.

2. The method of claim 1 wherein step (d) further comprises:

(d1) when the disconnection request is a voice session disconnection request, determining whether there is a request for another voice session; and

(d2) when there is a request for another voice session, proceeding to establish the requested voice session.

3. The method of claim 1 wherein step (e) further comprises:

(e

     1) when the disconnection request is a data session disconnection request, determining whether there is a request for another data session; and

(e

     2) when there is a request for another data session, proceeding to establish the requested data session.