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Manufacturer
  1. Avaya
Series
  1. TN2181-TN8412
  2. TN420-TN744
  3. TN746-TN768
  4. TN771-TN1654
Item Type
  1. Circuit Pack
Price
  1. $0.00 - $1,000.00
  2. $1,000.00 - $2,000.00
  3. $5,000.00 - $6,000.00
Brand
  1. Definity
Condition
  1. Refurbished
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Avaya Definity Circuit Packs

AdamTelco.com carries a full selection of Avaya Definity Circuit Packs at everyday low prices.

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  1. Avaya Definity TN464D Universal DS1/ISDN Circuit Pack

    Avaya Definity TN464D Universal DS1/ISDN Circuit Pack

    Regular Price: $199.00

    Special Price: $149.00

    Supports DS1 Rate (24 Digital Channels) and E1 Rate (32 Digital Channels) Learn More
  2. Avaya Definity TN464GP Universal DS1/PRI Interface

    Avaya Definity TN464GP Universal DS1/PRI Interface

    Regular Price: $349.00

    Special Price: $269.00

    Supports DS1 Rate (24 Digital Channels) and E1 Rate (32 Digital Channels). Learn More
  3. Avaya Definity TN556D ISDN-BRI 4-Wire S/T-NT Interface (12 Ports)

    Avaya Definity TN556D ISDN-BRI 4-Wire S/T-NT Interface (12 Ports)

    $349.00
    Provides 12-Ports connecting to ISDN-BRI terminals. Learn More
  4. Avaya Definity TN570C Expansion Interface

    Avaya Definity TN570C Expansion Interface

    $129.00
    Provides an interface between the TDM bus and packet bus, and fiber optic links interconnecting cabinets. Learn More
  5. Avaya Definity TN572 Switch-Node Clock

    Avaya Definity TN572 Switch-Node Clock

    $169.00
    Distributes the timing signals that synchronize the SN carrier. Learn More
  6. Avaya Definity TN744C Call Classifier

    Avaya Definity TN744C Call Classifier

    $69.00
    Supports digital signal processing of Pulse Code Modulation (PCM) signals on each port to detect tones and other signals. Learn More
  7. Avaya Definity TN744E Call Classifier Tone Detector (Multiple Countries)

    Avaya Definity TN744E Call Classifier Tone Detector (Multiple Countries)

    Regular Price: $199.00

    Special Price: $149.00

    Provides 8 ports of tone detection on the TDM bus. Learn More
  8. Avaya Definity TN744D Call Classifier

    Avaya Definity TN744D Call Classifier

    $79.00
    Supports digital signal processing of Pulse Code Modulation (PCM) signals on each port to detect tones and other signals. Learn More
  9. Avaya Definity TN742 8-Port Analog Line Circuit Pack

    Avaya Definity TN742 8-Port Analog Line Circuit Pack

    Regular Price: $89.00

    Special Price: $49.00

    Supports 500 and 2500 type, 7100, 8100, and 9100 series voice terminals. Learn More
  10. Avaya Definity TN722B DS1 Tie Trunk

    Avaya Definity TN722B DS1 Tie Trunk

    $99.00
    Provides Bit-Oriented Signaling (BOS) on the automatic, immediate-start, delay-dial, and release-link trunks. Learn More
  11. Avaya Definity TN573B Switch-Node Interface

    Avaya Definity TN573B Switch-Node Interface

    $199.00
    Routes circuit, packet, and control messages. Learn More
  12. Avaya Definity TN570D Expansion Interface

    Avaya Definity TN570D Expansion Interface

    $449.00
    Provides interface between the TDM bus and packet bus, and fiber optic links interconnecting cabinets. Learn More
  13. Avaya Definity TN570B Expansion Interface

    Avaya Definity TN570B Expansion Interface

    $79.00
    Provides control channel applications and time-slot interchanging between the PPN and EPNs. Learn More
  14. Avaya Definity TN556B ISDN-BRI 4-Wire Interface

    Avaya Definity TN556B ISDN-BRI 4-Wire Interface

    $199.00
    Provides 12-Ports connecting to ISDN-BRI terminals. Learn More
  15. Avaya Definity TN464F Universal DS1/ISDN PRI Interface

    Avaya Definity TN464F Universal DS1/ISDN PRI Interface

    Regular Price: $149.00

    Special Price: $99.00

    Supports DS1 Rate (24 Digital Channels) and E1 Rate (32 Digital Channels). Learn More
  16. Avaya Definity TN429D DIOD (Direct Inward/Outward Dialing)

    Avaya Definity TN429D DIOD (Direct Inward/Outward Dialing)

    $349.00
    Provides 8 ports for direct inward/outward dialing (DIOD) trunks. Learn More
  17. Avaya Definity TN464HP DS1/ISDN PRI Circuit Pack

    Avaya Definity TN464HP DS1/ISDN PRI Circuit Pack

    $999.00
    Support for universal, digital, signal level-1 equipment in wideband ISDN-PRI applications. Learn More
  18. Avaya Definity TN746 16-Port Analog Circuit Pack

    Avaya Definity TN746 16-Port Analog Circuit Pack

    Regular Price: $199.00

    Special Price: $89.00

    Supports 500 and 2500 type, 7100, 8100, and 9100 series voice terminals. Learn More
  19. Avaya Definity TN747B 8-Port Central Office Trunk Circuit Card

    Avaya Definity TN747B 8-Port Central Office Trunk Circuit Card

    Regular Price: $99.00

    Special Price: $65.00

    8-ports for loop-start or ground-start CO, foreign exchange (FX), and Wide Area Telecommunications (WATS) trunks. Learn More
  20. Avaya Definity TN748D Tone Detector

    Avaya Definity TN748D Tone Detector

    $79.00
    Provides four touch-tone receivers and two general purpose ton receivers to detect call progress tones, modem answer-back times, transmission test tones, and noise. Learn More

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AdamTelco.com stocks all of the latest small business phone systems.  From Avaya to NEC DSX, we have packages designed to fit into any business, big or small. We have phone systems that are perfect for restaurants, lawyers, manufacturing facilities, auto repair shops, retail stores, home based businesses and others.  All phone systems are at every day low prices!  Not only that, our staff has expert advice on all of these phone systems and when you call our sales team, you will be greeted immediately with a person who not only understands these phone systems but also understand business. Also, we stock thousands of phone system parts.  We carry new and used phones, system cards, power supplies, voicemail systems, processors, co cards, station cards, key service units from over 50 manufacturers.  Our refurbishing team are top notch in our industry.  We have been a leading force in phone systems and parts since the mid 1990's. In Houston Texas, we offer onsite technical services from phone system repair to complete installations.  We also move phones systems.  Feel free to call us at 281-894-6606

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