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MX-COM
MX-COM Inc
Description : Call Progress Tone Detector

The CMX673 is a low voltage multi-purpose Call Progress Tone Detector for use in Public Switched Telephone Network System (PSTN) applications. Call Progress detection allows equipment that dials into the PSTN to monitor the Progress of the resulting Call. Various states such as Ringing, Busy, Not available, and Answer can be determined. Using digital signal processing techniques the CMX673 accurately analyzes Tones in the 315Hz to 650Hz frequency band and distinguishes valid Call Progress Tone signals from line noise or voice. This contrasts with other Call Progress detection devices that are based on simple filtering techniques. When combined with cadence measurement of the CMX673 output, the rapid detect response time of the CMX673 allows it to support a wide range of Call Progress functions including ‘stutter dial Tone’ detection used in voice messaging systems.



Features

• Worldwide Tone Compatibility

• Fast Response

Stutter Dial Tone

Single and Dual Tones

• Industry Compatible Pin Out

• Wide Dynamic Signal Range

• Low Power: 0.5mA at 3.0V

• 3.0V to 5.0V Operation

• 3.58MHz Xtal/Clock Oscillator



Applications

• Worldwide Payphone Systems

• Featurephone active feature confirmation

• Telephone Redialing Systems

• Dialing Modems

• Banking and Billing Systems

• Telecom Test Equipment

• Telecom Security Systems


Part Name(s) : FX663D4 FX663P3 FX663
CML
CML Microsystems Plc
Description : Call Progress Decoder

Brief Description
The FX663 decodes the standard audible Tone signals provided by telecom systems worldwide to indicate Dial, Ringing, Busy, Unobtainable and other stages of a Call attempt. It provides the key features needed for intelligent, full-function, Call Progress monitoring by applications involving machine dialling or automatic Call placement. The FX663 also incorporates the following features:

● Single and dual Tone decoding for better cross-system Call Progress monitoring.
● "US Busy" Tone Detector, saving time needed for "cadence verification" under Busy and Unobtainable conditions. This incorporates a separate 620Hz Detector for improved response.
● A Detector to indicate speech and non-Call Progress signals; this reduces voice falsing of Call Progress Tones and adds Voice-Answer detection as a "connected" prompt.
● A fax and modem Tone decoder.
● A separate, adjustable threshold, signal-level Detector which reduces noise falsing.

The FX663 uses new digital signal processing techniques to provide these advantages. It is a low cost, low power product with superior performance. It is available in industry standard 16-pin packages.

Features Provisional Issue
● Decodes Call Progress Tones Worldwide covering:
● Low-Power (3 Volt) Operation
● Adjustable Detection Threshold
● Single and Dual Tones
● Fax and Modem Answer/Originate Tones
● Special Information Tones
● Fast US Busy Tone Detector
● Voice Detector
● Standard 3.58MHz Xtal/Clock Input
● 16-Pin SOIC and DIP Packages

Part Name(s) : MX623 MX623P
ETC
Unspecified
Description : Line-Powered Call Progress Tone Detector

[MX•COM Inc.]

Line-Powered Call Progress Tone Detector

The MX623 is a low-power decoding integrated circuit that measures the frequency of telephone system Call Progress Tones.
With Progress signals input from the telephone line, this single-chip product is programmed to recognize up to thirteen of the Worlds most commonly used Call-Progress frequencies, analyze signal quality, and present the measured result as a 4-bit parallel data word at the tri-state Data Output.

• MX•COM MiXed Signal CMOS
• Custom Tone Decoder (13 Call-Progress Frequencies Recognized)
• Operates to a 3.579545MHz Telephone System Clock
• Operates Under Simple Logic or µProcessor System Control
• Measures Call Progress Tone Frequencies (‘Busy’, ‘Dial’, ‘Fax-Tone’ etc.)
• Telephone, PABX, Fax and Dial-Up Modem Applications
• Low-Power Requirement (600µA at 3.3 VoltsTYP) for Line-Powered Applications

Part Name(s) : MX623 MX623P
MX-COM
MX-COM Inc
Description : Line-Powered Call Progress Tone Detector

Line-Powered Call Progress Tone Detector

The MX623 is a low-power decoding integrated circuit that measures the frequency of telephone system Call Progress Tones.
With Progress signals input from the telephone line, this single-chip product is programmed to recognize up to thirteen of the Worlds most commonly used Call-Progress frequencies, analyze signal quality, and present the measured result as a 4-bit parallel data word at the tri-state Data Output.

• MX•COM MiXed Signal CMOS
• Custom Tone Decoder (13 Call-Progress Frequencies Recognized)
• Operates to a 3.579545MHz Telephone System Clock
• Operates Under Simple Logic or µProcessor System Control
• Measures Call Progress Tone Frequencies (‘Busy’, ‘Dial’, ‘Fax-Tone’ etc.)
• Telephone, PABX, Fax and Dial-Up Modem Applications
• Low-Power Requirement (600µA at 3.3 VoltsTYP) for Line-Powered Applications

CML
CML Microsystems Plc
Description : Call Progress Tone Detector

Brief Description

The CMX673is a general purpose Call Progress Tone Detector for use in Public Switched Telephone System (PSTN) applications. Call Progress detection allows equipment which dials into the PSTN network to monitor the Progress of the resulting Call. Ringing, Busy, Not available and Answer states can be determined. The CMX673 uses advanced digital signal processing techniques to detect Tones in the frequency band 315Hz to 650Hz. The use of DSP techniques allows the CMX673 to distinguish between valid Call Progress Tone signals and line noise or voice, low false detection rates result. This is in contrast to other Call Progress detection devices which are based on simple filtering techniques. The detection



Features

·  Worldwide Tone Compatibility

·  Single and Dual Tones Detected

·  Wide Dynamic Signal Range

·  Fast Response Time

·  Low Power Operation 500µA at 3.0V

·  3.58MHz Xtal/Clock Oscillator



Applications

·  Worldwide Payphone Systems

·  Telephone Redialling Systems

·  Dialling Modems

·  Banking and Billing Systems

·  Telecom Test Equipment

·  Telecom Security Systems


Clare
Clare Inc => IXYS
Description : Precise Call Progress and Special Information Tone Generator

Description
The M-985-01 is an integrated circuit Precise Tone Detector for Call Progress and special information Tones (SIT), as defined by CCITT.
The use of integrated circuit techniques allows the M-985-01 to pack the eight filters for Call Progress detection into a single 22-pin DIP or a 20-pin SOIC. A 3.58 MHz crystal-controlled time base guarantees accuracy and repeatability.

Features
Precise detection of Call Progress Tones
• Linear (analog) input
• Digital (CMOS compatible), tri-state outputs
• 22-pin DIP and 20-pin SOIC
• Single supply 3 to 5 volt (low power CMOS)
• Inexpensive 3.58 MHz crystal time base
• Wide dynamic range (30 dB)
• Lower power consumption (power-down mode)
• 425 Hz detection
• Special Information Tone (SIT) Detection

Applications
• Automatic dialers
• Dialing modems
• Traffic measurement equipment
• Test equipment
• Service evaluation
• Billing systems

Clare
Clare Inc => IXYS
Description : Precise Call Progress Tone Detector

Description

The M-982-02 is an integrated circuit Precise Tone Detector for special-purpose use in automatic following of switched telephone Calls. The circuit uses low power CMOS techniques to provide the complete filtering and control required for this function. The basic timing of the M-982-02 is designed to permit operation with almost any Progress Tone system.The use of integrated circuit techniques allows the M-982-02 to pack the five filters for Call Progress following into a single 22-pin DIP or 20-pin SOIC. A 3.58 MHz crystal-controlled time base guarantees accuracy and repeatability.



Features

Precise detection of Call Progress Tones

• Linear (analog) input

• Digital (CMOS compatible), tri-state outputs

• 22-pin DIP and 20-pin SOIC

• Single supply 3 to 5 volt (low power CMOS)

• Inexpensive 3.58 MHz crystal time base

• Wide dynamic range (30 dB)

• Lower power consumption (power-down mode)

• 425 Hz detection



Applications

• Automatic dialers

• Dialing modems

• Traffic

• Measurement equipment

• Test equipment

• Service evaluation

• Billing systems


Part Name(s) : MX663 MX663DW MX663P
MX-COM
MX-COM Inc
Description : Call Progress Decoder

Call Progress Decoder



Features

•  Worldwide Call Progress Tone Decoding:

   Single and Dual Tones

   Fax and Modem

   Answer/Originate Tones

   SIT (Special Information Tones)

   Fast ‘US Busy’ Tone Detector

•  Adjustable Detection Threshold

•  Voice Detector

•  Low Power 3.3V/5.0V Operation



Applications

•  Call Progress Monitoring Automatic Call Placement

•  Machine Dialing

•  Fax Tone Detection for Line Switching


Holtek
Holtek Semiconductor
Description : Call Progress Tone Decoder & ABR Controller

General Description
The HT9020B Call Progress Tone Detector is a telecom peripheral for Auto-dialing system use.
Switched capacitors technology is implemented into the chip to get good performance characteristics of band pass filter in the range of 305 to 640Hz Call Progress Tone which is dual Tone multi-frequency signal.
When it detected CPT signal then it generates relative envelopes for external microcontroller decision to finish different kinds of CPT signal detection such as dial Tone, busy Tone, ring-back Tone and reorder Tone.

Features
• Operating voltage: 2.5V~5.5V
• Low power consumption
• Low cost 32768Hz crystal
• CPT Band: 305~640Hz detection
• Good performance:
   8 ~ 39 dBm at VDD=2.5V
   0 ~ 27 dBm at VDD=5V
• 8-pin DIP package

Philips
Philips Electronics
Description : Call Progress decoder

DESCRIPTION
The NE5900 Call Progress decoder (CPD) is a low cost, low power CMOS integrated circuit designed to interface with a microprocessor-controlled smart telephone capable of making preprogrammed telephone Calls. The Call Progress decoder information to permit microprocessor decisions whether to initiate, continue, or terminate Calls. A tri-state, 3-bit output code indicates the presence of dial Tone, audible ring-back, busy signal, or re-order Tones.

FEATURES
• Fully decoded tri-state Call Progress status output
• Works with traditional, precision, or PBX Call Progress Tones
• Low power consumption
• Low cost 3.58MHz crystal or clock
• No calibration or adjustment
• Interfaces with LSTLL, CMOS, NMOS
• Easy application

APPLICATIONS
• Modems
• PBXs
• Security equipment
• Auto dialers
• Answering machines
• Remote diagnostics
• Pay telephones

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