WO1997042773A3 - Apparatus and method in support of completing two calls using analog interface to telephone network - Google Patents
Apparatus and method in support of completing two calls using analog interface to telephone network Download PDFInfo
- Publication number
- WO1997042773A3 WO1997042773A3 PCT/US1997/007871 US9707871W WO9742773A3 WO 1997042773 A3 WO1997042773 A3 WO 1997042773A3 US 9707871 W US9707871 W US 9707871W WO 9742773 A3 WO9742773 A3 WO 9742773A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- telephone network
- calls
- completing
- support
- analog interface
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
- H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Interface Circuits In Exchanges (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97924643A EP0864235A2 (en) | 1996-05-09 | 1997-05-09 | Apparatus and method in support of completing two calls using analog interface to telephone network |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US64730296A | 1996-05-09 | 1996-05-09 | |
US08/647,302 | 1996-05-09 | ||
US73357796A | 1996-10-18 | 1996-10-18 | |
US08/733,577 | 1996-10-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1997042773A2 WO1997042773A2 (en) | 1997-11-13 |
WO1997042773A3 true WO1997042773A3 (en) | 1998-05-07 |
Family
ID=27095124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1997/007871 WO1997042773A2 (en) | 1996-05-09 | 1997-05-09 | Apparatus and method in support of completing two calls using analog interface to telephone network |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0864235A2 (en) |
CA (1) | CA2240906A1 (en) |
WO (1) | WO1997042773A2 (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3440307A1 (en) * | 1984-11-05 | 1986-05-22 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Circuit arrangement for dual-subscriber connections in telecommunications switching systems, in particular telephone switching systems |
GB2187611A (en) * | 1986-03-05 | 1987-09-09 | Telebit Corp | A speech and data multiplexor optimized for use over impaired and bandwidth restricted analog channels |
US5182768A (en) * | 1991-10-21 | 1993-01-26 | Nitsuko Corporation | Digital telephone set capable of being simultaneously used by a plurality of persons by using one transmission line |
US5214650A (en) * | 1990-11-19 | 1993-05-25 | Ag Communication Systems Corporation | Simultaneous voice and data system using the existing two-wire inter-face |
EP0653872A1 (en) * | 1993-11-15 | 1995-05-17 | AT&T Corp. | Conversion of a fax modulation to a data modulation |
US5428608A (en) * | 1993-12-30 | 1995-06-27 | At&T Corp. | Call connection technique |
EP0674420A1 (en) * | 1994-03-23 | 1995-09-27 | AT&T Corp. | Independently switched voice and data calls using a simultaneous voice and data modem |
-
1997
- 1997-05-09 EP EP97924643A patent/EP0864235A2/en not_active Withdrawn
- 1997-05-09 WO PCT/US1997/007871 patent/WO1997042773A2/en not_active Application Discontinuation
- 1997-05-09 CA CA 2240906 patent/CA2240906A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3440307A1 (en) * | 1984-11-05 | 1986-05-22 | Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt | Circuit arrangement for dual-subscriber connections in telecommunications switching systems, in particular telephone switching systems |
GB2187611A (en) * | 1986-03-05 | 1987-09-09 | Telebit Corp | A speech and data multiplexor optimized for use over impaired and bandwidth restricted analog channels |
US5214650A (en) * | 1990-11-19 | 1993-05-25 | Ag Communication Systems Corporation | Simultaneous voice and data system using the existing two-wire inter-face |
US5182768A (en) * | 1991-10-21 | 1993-01-26 | Nitsuko Corporation | Digital telephone set capable of being simultaneously used by a plurality of persons by using one transmission line |
EP0653872A1 (en) * | 1993-11-15 | 1995-05-17 | AT&T Corp. | Conversion of a fax modulation to a data modulation |
US5428608A (en) * | 1993-12-30 | 1995-06-27 | At&T Corp. | Call connection technique |
EP0674420A1 (en) * | 1994-03-23 | 1995-09-27 | AT&T Corp. | Independently switched voice and data calls using a simultaneous voice and data modem |
Also Published As
Publication number | Publication date |
---|---|
EP0864235A2 (en) | 1998-09-16 |
WO1997042773A2 (en) | 1997-11-13 |
CA2240906A1 (en) | 1997-11-13 |
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