Sidebar

Our Catalog

Availability

Price

$
to
$

Refurbished Business Phone Systems

All Avaya

Filter
  • 10
  • 15
  • 20
  • 25
  • 30
  • 50
  • Featured
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
Sort

Sort by:

  • Featured
  • Best selling
  • Alphabetically, A-Z
  • Alphabetically, Z-A
  • Price, low to high
  • Price, high to low
  • Date, old to new
  • Date, new to old
  • Avaya Definity TN746B 16-Port Analog Line Card (Refurbished)
    Avaya Definity TN746B 16-Port Analog Line Card (Refurbished)
    Key Features: Adds 16 analog voice terminals Supports LED and neon message waiting indicators Supports IROB up to distances of 20,000 feet Supported Voice Terminals: 500 Series 2500 Type Series 7100 Series 8100 Series 9100 Series
    $38.99
    $38.99
  • Avaya Definity TN746 16-Port Analog Line Card (Refurbished)
    Avaya Definity TN746 16-Port Analog Line Card (Refurbished)
    Key Features: Mnfr. Part #: TN746 Adds 16 analog voice terminals. Each port supports one voice terminal with or without LED message waiting indicators Does not support terminals with neon message waiting indicators Supports IROB up to distances of 20,000 feet. Supported Voice Terminals:...
    $30.00
    $30.00
  • Avaya Definity TN744E 8-Port Tone Detector for Multiple Countries (Refurbished)
    Avaya Definity TN744E 8-Port Tone Detector for Multiple Countries (Refurbished)
    Avaya Definity TN744E Call Classifier Tone Detector for Multiple Countries (8-Ports). More Information Provides 8 ports of tone detection on the TDM bus Does not support call progress tone generation or clocking Provides tone generation and detection for R2-MFC DID signaling used in no-US...
    $39.98
    $39.98
  • Avaya Definity TN744D 8-Port Call Classifier Tone Detector (Refurbished)
    Avaya Definity TN744D 8-Port Call Classifier Tone Detector (Refurbished)
    Avaya Definity TN744D Call Classifier Tone Detector Definity Card. More Information 8 ports of tone detection on the Time Division Multiplexing (TDM) bus that function the same as the TN2182, but the TN744C does not support call progress, tone generation, or clocking Supports digital...
    $39.00
    $39.00
  • Avaya Definity TN744C 8-Port Call Classifier Tone Detector (Refurbished)
    Avaya Definity TN744C 8-Port Call Classifier Tone Detector (Refurbished)
    Avaya Definity TN744C Call Classifier Tone Detector Definity Card. More Information 8 ports of tone detection on the Time Division Multiplexing (TDM) bus that function the same as the TN2182, but the TN744C does not support call progress, tone generation, or clocking Supports digital...
    $37.00
    $37.00
  • Avaya Definity TN742 8-Port Analog Line Circuit Pack (Refurbished)
    Avaya Definity TN742 8-Port Analog Line Circuit Pack (Refurbished)
    Avaya Definity TN742 8-Port Analog Line Circuit Pack. More Information 8 port analog interface Each port supports one voice terminal with or without LED message waiting indicators (message waiting indicators not supported off-premise) Does not support neon message waiting indicators Supports 500 and 2500...
    $36.88
    $36.88
  • Avaya Definity TN736 Power Unit Circuit Card (Refurbished)
    Avaya Definity TN736 Power Unit Circuit Card (Refurbished)
    Key Features: Mnfr Part #: TN736 Power Unit Compatible with the Avaya Definity phone system
    $49.99
    $49.99
  • Avaya Definity TN735 4-Port MET Line (Refurbished)
    Avaya Definity TN735 4-Port MET Line (Refurbished)
    Avaya Definity TN735 MET Line (4 Ports). More Information Provides 4 ports that connect to multi-button electronic telephone (MET) sets Each port has tip and ring (analog voice) and BT, BR, LT, and LR (digital signals to control terminals) signal leads
    $199.00
    $199.00
  • Avaya Definity TN731B Maintenance Pack Circuit Card (Refurbished)
    Avaya Definity TN731B Maintenance Pack Circuit Card (Refurbished)
    Key Features: Mfr. Part #: TN731B Maintenance Pack Circuit Card Provides direct access to the dedicated SAT Provides alarm LEDs for system status Monitors power units and controls emergency transfer Monitors and controls processor circuit pack conditions Monitors cabinet temperature and airflow and originates...
    $49.00
    $49.00
  • Avaya Definity TN731 Maintenance Pack Circuit Card (Refurbished)
    Avaya Definity TN731 Maintenance Pack Circuit Card (Refurbished)
    Key Features: Mfr. Part #: TN731 Maintenance Pack Circuit Card
    $49.00
    $49.00
  • Avaya Definity TN726B 8-Port Data Line (Refurbished)
    Avaya Definity TN726B 8-Port Data Line (Refurbished)
    Avaya Definity TN726B Data Line (8-Ports). More Information Provides 8 serial asynchronous EIA ports with modem interfaces connected through asynchronous data units (ADUs) to EAI ports on DTE Uses Mode 2 or Mode 3 data transfer protocol DTE can be adjuncts and peripheral equipment...
    $79.00
    $79.00
  • Avaya Definity TN725B Speech Synthesizer for U.S. English (Refurbished)
    Avaya Definity TN725B Speech Synthesizer for U.S. English (Refurbished)
    Avaya Definity TN725B Speech Synthesizer for United States English. More Information Provides 4 ports that send voice message information to telephones to activate leave word calling, automatic wakeup, voice message retrieval, and Do Not Disturb features Ports can detect tones
    $1,125.00
    $1,125.00
  • Avaya Definity TN725 Speech Synthesizer for U.S. English (Refurbished)
    Avaya Definity TN725 Speech Synthesizer for U.S. English (Refurbished)
    Key Features: Mfr. Part #: TN725 The TN725 Speech Synthesizer makes available two new wake-up options. The first is VIP Wake-up where an attendant is notified to place a wake-up call to special guest. The second new feature is Daily Wake-up, where the wake-up...
    $2,249.00
    $2,249.00
  • Avaya Definity TN722B DS1 Tie Trunk (Refurbished)
    Avaya Definity TN722B DS1 Tie Trunk (Refurbished)
    Avaya Definity TN722B DS1 Tie Trunk. More Information 8 ports connecting to multi-appearance hybrid analog and digital voice terminals 24 independent trunk connections to a 1.544-Mbps DS1 facility Each trunk transmits data at 64 kbps common channel or 56 kbps Robbed Bit Signaling Three...
    $65.00
    $65.00
  • Avaya Definity TN716B Interface 1 Card (Refurbished)
    Avaya Definity TN716B Interface 1 Card (Refurbished)
    Key Features: Mfr. Part #: TN716B Interface 1 Card Avaya Definity
    $55.00
    $55.00
  • Avaya Definity TN714 Tone Clock Card (Refurbished)
    Avaya Definity TN714 Tone Clock Card (Refurbished)
    Key Features: Mfr. Part #: TN714 Tone-Clock Card Compatibility: Avaya Definity phone system
    $41.99
    $41.99
  • Avaya Definity TN577 Packet Gateway (Refurbished)
    Avaya Definity TN577 Packet Gateway (Refurbished)
    Avaya Definity TN577 Packet Gateway for r. More Information Provides 4 RS-423 physical ports for X.25 protocol interfaces between the system and adjuncts Functions as the data communications interface unit providing protocol conversion between the X.25 protocol and the mode 3 protocol carried across...
    $399.00
    $399.00
  • Avaya Definity TN573B Switch-Node Interface (Refurbished)
    Avaya Definity TN573B Switch-Node Interface (Refurbished)
    Avaya Definity TN573B Switch-Node Interface for r. More Information Routes circuit, packet, and control messages Installed in a SN carrier in a CSS that terminates a fiber optic link from a SNI in another SN carrier, and EI in a PPN, and an EI...
    $199.00
    $199.00
  • Avaya Definity TN572 Switch-Node Clock (Refurbished)
    Avaya Definity TN572 Switch-Node Clock (Refurbished)
    Avaya Definity TN572 Switch-Node Clock for r. More Information Distributes the timing signals that synchronize the SN carrier Also receives maintenance data
    $169.00
    $169.00
  • Avaya Definity TN570D Expansion Interface (Refurbished)
    Avaya Definity TN570D Expansion Interface (Refurbished)
    Avaya Definity TN570D Expansion Interface. More Information Provides interface between the TDM bus and packet bus, and fiber optic links interconnecting cabinets Used in a Port Network (PN) between a PN and another PN in a direct-connect system, and between a PN and an...
    $48.99
    $48.99

Recently Viewed Products