AU2443399A - Method and apparatus for detecting signalling tones - Google Patents
Method and apparatus for detecting signalling tonesInfo
- Publication number
- AU2443399A AU2443399A AU24433/99A AU2443399A AU2443399A AU 2443399 A AU2443399 A AU 2443399A AU 24433/99 A AU24433/99 A AU 24433/99A AU 2443399 A AU2443399 A AU 2443399A AU 2443399 A AU2443399 A AU 2443399A
- Authority
- AU
- Australia
- Prior art keywords
- signalling tones
- detecting signalling
- detecting
- tones
- signalling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/82—Line monitoring circuits for call progress or status discrimination
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Function (AREA)
- Telephonic Communication Services (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/RU1998/000353 WO2000030325A1 (en) | 1998-10-30 | 1998-10-30 | Method and apparatus for detecting signalling tones |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2443399A true AU2443399A (en) | 2000-06-05 |
Family
ID=20130281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU24433/99A Abandoned AU2443399A (en) | 1998-10-30 | 1998-10-30 | Method and apparatus for detecting signalling tones |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2443399A (en) |
WO (1) | WO2000030325A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7215765B2 (en) | 2002-06-24 | 2007-05-08 | Freescale Semiconductor, Inc. | Method and apparatus for pure delay estimation in a communication system |
US7242762B2 (en) | 2002-06-24 | 2007-07-10 | Freescale Semiconductor, Inc. | Monitoring and control of an adaptive filter in a communication system |
US6961423B2 (en) | 2002-06-24 | 2005-11-01 | Freescale Semiconductor, Inc. | Method and apparatus for performing adaptive filtering |
US7388954B2 (en) | 2002-06-24 | 2008-06-17 | Freescale Semiconductor, Inc. | Method and apparatus for tone indication |
EP1395065B1 (en) | 2002-08-28 | 2007-01-24 | Freescale Semiconductor, Inc. | Tone detector and method therefor |
US7844048B2 (en) | 2004-03-08 | 2010-11-30 | Freescale Semiconductor, Inc. | Selective tone event detector and method therefor |
US9503568B1 (en) | 2016-06-30 | 2016-11-22 | Captioncall, Llc | Detecting dial tone on a telephone line |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5023906A (en) * | 1990-04-24 | 1991-06-11 | The Telephone Connection | Method for monitoring telephone call progress |
US5442696A (en) * | 1991-12-31 | 1995-08-15 | At&T Corp. | Method and apparatus for detecting control signals |
US5321745A (en) * | 1992-05-26 | 1994-06-14 | Vmx, Inc. | Adaptive efficient single/dual tone decoder apparatus and method for identifying call-progression signals |
US5477465A (en) * | 1993-08-31 | 1995-12-19 | Talx Corporation | Multi-frequency receiver with arbitrary center frequencies |
-
1998
- 1998-10-30 WO PCT/RU1998/000353 patent/WO2000030325A1/en active Application Filing
- 1998-10-30 AU AU24433/99A patent/AU2443399A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
WO2000030325A1 (en) | 2000-05-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK6 | Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase |