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Datasheet
Intel(R) Dialogic(R) DIALOG/4 Voice Board
Retired product - This datasheet is for informational purposes only; the product detailed in this datasheet is no longer available. Consider migrating to the Intel Dialogic D/4PCIUF combined media board at http://www.intel.com/network/csp/products/8497web.htm.
The Intel(R) Dialogic(R) DIALOG/4 is a four-port voice board in a half-size ISA form factor that is ideal for the small/medium business (SMB) market segment. The DIALOG/4 has downloadable signal and call processing firmware that facilitates feature enhancement and helps developers build systems that scale from four to 64 ports.
Features and Benefits
Four independent voice processing ports in a single, half-size ISA slot supporting low- to mediumdensity voice systems Downloadable signal and call processing firmware, Spring Ware, facilitates feature enhancement and provides field-proven performance based on over four million installed ports C language application program interfaces (APIs) for MS-DOS*, Windows* 95, Windows NT*, OS/2*, UNIX*, and Linux* shorten the development cycle to get applications to market faster Application generators available from third-party providers Configure multiple DIALOG/4 boards in a single PC for easy and cost-effective system expansion, and to build scalable systems from four to 64 ports Voice coding at dynamically selectable data rates, 24 Kb/s to 64 Kb/s, selectable on a channel-by-channel basis for optimal tradeoff in disk storage and voice quality Enhanced telephone circuitry and automatic gain control (AGC) maintains recording quality over a wide dynamic range Perfect digit DTMF (touchtone) provides reliable detection during voice playback - lets callers "typeahead" through menus Outbound call progress analyzes outgoing call status quickly and accurately Supports PBXpert and PBXpert/32, complimentary utilities that simplify switch integration Lifetime warranty
Datasheet Intel(R) Dialogic(R) DIALOG/4 Voice Board
4 Telephone Network (analog loop start lines) 4 4 4
DIALOG/4 DIALOG/4 DIALOG/4 DIALOG/4
PC
Configurations
The Intel(R) Dialogic(R) DIALOG/4 board shares a common hardware and firmware architecture with other Intel voice boards for maximum flexibility and scalability. You can easily add new features and/or expand the size of the system while protecting your original investment in hardware and application code. Applications can be ported to lower or higher line-density platforms with minimal modifications. The DIALOG/4 board installs in IBM* PC XT*/AT* (ISA bus) and compatible computers (PC platforms based on the Intel386TM, Intel486TM, or Pentium(R) processors). The DIALOG/4 board provides everything required for building integrated voice solutions scalable from four to 64 ports.
Software Support
The Intel(R) Dialogic(R) DIALOG/4 board is supported by System Software and SDKs for MS-DOS*, Windows NT*, Windows* 95, and Linux*. These packages contain a set of tools for developing complex multichannel applications.
Applications

Voice mail/voice messaging Interactive voice response Audiotex Inbound and outbound telemarketing Operator services Dictation Auto dialers Notification systems
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Intel(R) Dialogic(R) DIALOG/4 Voice Board Datasheet
Control Bus Code/Data DRAM 1 of 4 Shown 80C188 Control Processor DSP CODEC Line Interface To Central Office or PBX
Shared RAM
DSPRAM
IRQ
DATA PC XT/AT BUS
Functional Description
The Intel Dialogic DIALOG/4 board uses a unique dual(R) (R)
telephony signaling status, and instructs the line interface to transmit outbound signaling (on-hook/off-hook) to the telephone network. The audio voice signal from the network is sent through a bandpass filter, conditioned by the line interface, and then applied to a COder/DECoder (CODEC) circuit. The CODEC filters, samples, and digitizes the inbound analog audio signal and passes the digitized signal to a Motorola* DSP. Based on Spring Ware firmware loaded in DSP RAM, the DSP performs the following signal analysis and operations on this incoming data:
processor architecture that combines the signal processing capabilities of a digital signal processor (DSP) with the decision-making and data movement functionality of a general-purpose 80C188 control microprocessor. This dual-processor approach offloads many low-level decisionmaking tasks from the host computer, enabling development of more powerful applications. This architecture handles real-time events manages data flow to the host PC for faster system response time reduces host PC processing demands processes DTMF and telephony signaling frees the DSP to perform signal processing on the incoming call Each of four loop start telephone line interfaces on the DIALOG/4 board receives analog voice and telephony signaling information from the telephone network (see block diagram). Each line interface uses reliable, solidstate hook switches (no mechanical contacts) and FCC part 68 class B ring detection circuitry. This FCCapproved ring detector is less susceptible to spurious rings created by random voltage fluctuations on the network. Each interface incorporates circuitry that protects against high-voltage spikes and adverse network conditions, letting applications go off-hook any time during ring cadence without damaging the board. Inbound telephony signaling (ring and loop current detection) are conditioned by the line interface and routed via a control bus to the control processor. The control processor responds to these signals, informs the application of
automatic gain control (AGC) to compensate for variations in the level of the incoming audio signal applies an Adaptive Differential Pulse Code Modulation (ADPCM) or Pulse Code Modulation (PCM) algorithm to compress the digitized voice and save disk storage space
detects the presence of tones -- DTMF, MF, or an application-defined single- or dual-frequency tone silence detection to determine whether the line is quiet and the caller is not responding
For outbound data, the DSP performs the following operations:

expands stored, compressed audio data for playback adjusts the volume and rate of speed of playback upon application or user request generates tones -- DTMF, MF, or any applicationdefined general-purpose tone
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Datasheet Intel(R) Dialogic(R) DIALOG/4 Voice Board
The dual-processor combination also performs the following outbound dialing and call progress monitoring: transmits an off-hook signal to the telephone network dials out (makes an outbound call) monitors and reports results -- line busy or congested -- operator intercept -- ring, no answer -- or if the call is answered, whether answered by a person, an answering machine, a facsimile machine, or a modem When recording speech, the DSP can use different digitizing rates from 24 Kb/s to 64 Kb/s as selected by the application for the best speech quality and most efficient storage. The digitizing rate can be selected on a channelby-channel basis and can be changed each time a record or play function is initiated. Outbound processing is the reverse of inbound processing. The DSP processed speech is transmitted by the control microprocessor to the host PC for disk storage. When replaying a stored file, the microprocessor receives the voice information from the host PC and passes it to the DSP which converts the file into digitized voice. The DSP sends digitized voice to the CODEC to be converted into analog voice and then to the line interface for transmission to the telephone network.
The on-board microprocessor controls all operations of the DIALOG/4 board via a local bus and interprets and executes commands from the host PC. This microprocessor handles real-time events manages data flow to the host PC to provide faster system response time reduces PC host-processing demands processes DTMF and telephony signals before passing them to the application frees the DSP to perform signal processing Communications between this microprocessor and the host PC is via the shared RAM that acts as an input/output buffer, increasing the efficiency of disk file transfers. This RAM interfaces to the host PC via the XT/AT bus. All operations are interrupt-driven to meet the demands of real-time systems. All DIALOG/4 boards installed in the PC share the same interrupt line. When the system is initialized, Spring Ware firmware to control all board operations is downloaded from the host PC to the on-board code/data RAM and DSP RAM. This downloadable firmware gives the board all of its intelligence and enables easy feature enhancement and upgrades.
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Intel(R) Dialogic(R) DIALOG/4 Voice Board Datasheet
Technical Specifications
Number of ports Max. boards/system Analog network interface Microprocessor Digital signal processor Four 16 Onboard loop start interface circuits 80C188 Motorola* DSP56001
Host Interface
Bus compatibility Bus speed Shared memory Base addresses IBM PC XT/AT (ISA) 4 MHz to 12 MHz, 70 nsec back-to-back bus cycle 8 KB page, switch selectable on 8 KB boundaries D000h (default) A000h C000h Interrupt level IRQ 2 to IRQ 7 jumper selectable One IRQ is shared by all DIALOG/4 boards
Telephone Interface
Trunk type Impedance Ring detection Loop current range Receive signal/noise ratio Crosstalk coupling Frequency response Connector Loop start (or ground start for answer only) 600 Ohms nominal 25 Vrms minimum 15.3 Hz to 68 Hz, 150 Vrms maximum 20 mA to 120 mA, DC (polarity insensitive) 70 dB, referenced to -15 dBm -70 dB at 1 kHz channel to channel 300 Hz to 3400 Hz 3 dB (transmit and receive) Two RJ-11 type
Power Requirements
+5 VDC +12 VDC -12 VDC Operating temperature Storage temperature Humidity Form factor .75 A 40 mA 40 mA 0C to +50C -20C to +70C 8% to 80% noncondensing PC XT (ISA) 7 in. long (17.5 cm) 0.652 in. wide (1.63 cm) 4.5 in. high (11.25 cm) (excluding edge connector)
Safety and EMI Certifications
United States Canada Estimated MTBF Warranty FCC part 68 ID#: EBZUSA-65588-VM-E UL: E143032 DOC: 885-4452A ULC: E143032 309,000 hours per Bellcore Method I Intel(R) Telecom Products Warranty Information at http://www.intel.com/network/csp/products/3144web.htm
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Datasheet Intel(R) Dialogic(R) DIALOG/4 Voice Board
Spring Ware Technical Specifications
Audio Signal
Receive range Automatic gain control Silence detection Transmit level (weighted average) Transmit volume control -50 dBm to -13 dBm (nominal), for average speech signals configurable by parameter** Application can enable/disable. Above -18 dBm results in full-scale recording, configurable by parameter.** -38 dBm nominal, software adjustable** -9 dBm nominal, configurable by parameter** 40 dB adjustment range, with application-definable increments and legal limit cap
Frequency Response
24 Kb/s 32 Kb/s 48 Kb/s 64 Kb/s 300 Hz to 2600 Hz 3 dB 300 Hz to 3400 Hz 3 dB 300 Hz to 2600 Hz 3 dB 300 Hz to 3400 Hz 3 dB
Audio Digitizing
24 Kb/s 32 Kb/s 48 Kb/s 64 Kb/s Digitization selection Playback speed control ADPCM @ 6 kHz sampling ADPCM @ 8 kHz sampling -law PCM @ 6 kHz sampling -law PCM @ 8 kHz sampling Selectable by application on function call-by-call basis Pitch controlled Available for 24 and 32 Kb/s data rates Adjustment range: 50% Adjustable through application or programmable DTMF control
DTMF Tone Detection
DTMF digits Dynamic range Minimum tone duration Interdigit timing Twist and frequency variation Acceptable twist Signal/noise ratio Noise tolerance Cut-through Talk off 0 to 9, *, #, A, B, C, D per Bellcore* LSSGR Sec 6 Default set to -36 dBm to -3 dBm per tone, configurable by parameter** 40 ms, can be increased with software configuration Detects like digits with a 40 ms interdigit delay. Detects different digits with a 0 ms interdigit delay. Meets Bellcore LSSGR Sec 6 and EIA 464 requirements 10 dB 10 dB (referenced to lowest amplitude tone) Meets Bellcore LSSGR Sec 6 and EIA 464 requirements for Gaussian, impulse, and power line noise tolerance Detects down to -36 dBm per tone into 600 Ohm load impedance Detects less than 20 digits while monitoring Bellcore TR-TSY-000763 standard speech tapes. (LSSGR requirements specify detecting no more than 470 total digits.) Detects 0 digits while monitoring MITEL speech tape #CM 7291.
Global Tone Detection
Tone type Max. number of tones Frequency range Max. frequency deviation Frequency resolution Timing Dynamic range Programmable for single or dual Application-dependent Programmable within 300 Hz to 3500 Hz Programmable in 5 Hz increments Less than 5 Hz. NOTE: Certain limitations exist for dual tones closer than 125 Hz apart. Programmable cadence qualifier, in 10 ms increments Programmable, default set at -36 dBm to +3 dBm per tone
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Intel(R) Dialogic(R) DIALOG/4 Voice Board Datasheet
Spring Ware Technical Specifications
Global Tone Generation
Tone type Frequency range Frequency resolution Duration Amplitude
(cont.)
Generate single or dual tones Programmable within 200 Hz to 4000 Hz 1 Hz 10 ms increments -43 dBm0 to -3 dBm0 per tone nominal, programmable
MF Signaling
MF digits Transmit level Signaling mechanism Dynamic range for detection Acceptable twist Acceptable freq. variation 0 to 9, KP, ST, ST1, ST2, ST3 per Bellcore LSSGR Sec 6, TR-NWT-000506 and CCITT Q.321 Complies with Bellcore LSSGR Sec 6, TR-NWT-000506 Complies with Bellcore LSSGR Sec 6, TR-NWT-000506 -25 dBm0 to -3 dBm0 per tone 6 dB Less than 1 Hz
Call Progress Analysis
Busy tone detection Default setting designed to detect 74 out of 76 unique busy/congestion tones used in 97 countries as specified by CCITT Rec. E., Suppl. #2. Default uses both frequency and cadence detection. Application can select frequency only for faster detection in specific environments. Default setting designed to detect 83 out of 87 unique ring back tones used in 96 countries as specified by CCITT Rec. E., Suppl. #2. Uses both frequency and cadence detection. >98% based on tests on a database of real world calls in North America. Performance in other markets may vary. Detects voice in as little as 1/10th of a second 85% based on application and environment Preprogrammed Detects entire sequence of the North American tri-tone. Other SIT tones can be programmed. Application enable/disable Supports up to three different user-definable dial tones Programmable dial tone drop out debouncing
Ring back detection
Positive voice detection accuracy Positive voice detection speed Positive answering machine detection accuracy Fax/modem detection Intercept detection Dial tone detection before dialing
Tone Dialing
DTMF digits MF digits Frequency variation Rate Level 0 to 9, *, #, A, B, C, D per Bellcore LSSGR Sec 6, TR-NWT-000506 0 to 9, KP, ST, ST1, ST2, ST3 Less than 1 Hz 10 digits/s, configurable by parameter** -4.0 dBm per tone, nominal, configurable by parameter**
Pulse Dialing
10 digits Pulsing rate Break ratio 0 to 9 10 pulses/s, nominal, configurable by parameter** 60% nominal, configurable by parameter**
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Datasheet Intel(R) Dialogic(R) DIALOG/4 Voice Board
Spring Ware Firmware Technical Specifications
Analog Display Services Interface (ADSI)
FSK generation per Bellcore TR-NWT-000030
(cont.)
CAS tone generation and DTMF detection per Bellcore TR-NWT-001273 ** All specifications are subject to change without notice.
Hardware System Requirements

Intel386TM, Intel486TM, or Pentium(R) processor IBM PC AT (ISA) bus or compatible computer Operating system hardware requirements vary according to the number of channels being used
Recommended Cables
The DIALOG/4 does not come with the Y adapter (RJ-14 to RJ-11) and is sold separately. The item market name for this cable is CBLRJ14TORJ11YA.
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http://www.intel.com.
INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL(R) PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL'S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. Intel products are not intended for use in medical, life saving, life sustaining, critical control or safety systems, or in nuclear facility applications. Intel may make changes to specifications, product descriptions, and plans at any time, without notice. Positive Answering Machine Detection/Positive Voice Detection These performance results were measured using specific computer systems and/or components within specific lab environments and under specific system configurations. Any difference in system hardware, software design, or configuration may affect actual performance. The results are furnished for informational use only and should not be construed as a commitment by Intel. Intel assumes no responsibility or liability for any errors or inaccuracies. Outbound Dialing/Telemarketing Outbound dialing systems may be subject to certain laws or regulations. Intel makes no representation that Intel products will satisfy the requirements of any such laws or regulations (including, without limitation, any regulations dealing with telemarketing). Intel, Intel Dialogic, Pentium, and the Intel logo are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. Intel, Intel386, Intel486, Intel Dialogic, Pentium, and the Intel logo are trademarks or registered trademarks of Intel Corporation or its subsidiaries in the United States and other countries. * Other names and brands may be claimed as the property of others.

Average speech mandates +16 dB peaks above average and preserves -13 dB valleys below average. Analog levels: 0 dBm0 corresponds to a level of +3 dBm at tip-ring analog point. Values vary depending on country requirements; contact your Intel Sales Engineer.
Copyright (c) 2002-5 Intel Corporation All rights reserved.
Printed in the USA
e Printed on recycled paper.
09/05
00-2419-008

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