Modems

ISDN

Nortel BCM DTM - T1/PRI (NT5B04AAAD) Nortel BCM DTM Features The Nortel BCM Digital Trunk Media Bay Module connects to a standard digital PSTN T1/fT1, E1/fE1, or PRI ISDN line using either a digital or PRI line Also supports DASS2, DPN22, Q.SIG, and MCDN over ISDN On North American BCM systems, the DTM connects a T1 or PRI circuit to the BCM system; T1 circuits provide 24 digital channels to the PSTN, while PRI circuits provide 23 digital channels to the PSTN On International BCM systems, the DTM connects an ETSI ISDN (E1) or PRI (EI) circuit to the BCM system, providing a maximum of 30 digital channels to the PSTN The front bezel of the DTM has an RJ-48C connector that connects the DTM to the service provider connection point The faceplate also has a set of monitor jacks you can use to... Less

HP ISDN Terminal Adapter Plug-In Module Multifunction Interface Module ISDN Pri T1. New Retail Factory Sealed with Full Manufacturer warranty.

Digium TE122P Single Span Digital PCI Card (PRI/T1/E1/J1)) Digium TE122P Features Provides one RJ45 port for connecting T1/E1/J1 circuits Supports industry standard telephony and data protocols including PRI (North American and Standard Euro) protocol families for voice, PPP, Cisco, HDLC, and Frame Relay data modes Supports both voice and data modes on a single span Supports both E1, T1, J1 environments Improves I/O speed by up to 10 times resulting in reduced CPU usage and increased card density per server Can add optional hardware echo cancellation module ( VPMADT032 ) (see option below) Fully compatible with existing software applications and is fully integrated with the Asterisk Open Source PBX/IVR platform Half-length digital PCI board Note: For use only with a 3.3V or 5.0V PCI slot... Less

DIVA V-2PRI/E1-60 EOL: 12-1-12 NCNR: 9-1-12

Digium TE407P 4-Port Digital Echo Cancellation PCI Card *5.0V* (PRI/T1/E1/J1) Digium TE407P Features Provides 4 RJ45 ports for connecting T1/E1/J1 circuits Supports industry standard telephony and data protocols including PRI (North American and Standard Euro) protocol families for voice, PPP, Cisco, HDLC, and Frame Relay data modes Supports both line-side and trunk-side interfaces and advanced call features Supports both E1, T1, J1 environments and is selectable on a per-card or per-port basis Improves I/O speed by up to 10 times resulting in reduced CPU usage and increased card density per server Includes ( VPMOCT128 - see option below) Fully compatible with existing software applications and is fully integrated with the Asterisk Open Source PBX/IVR platform Half-length PCI Card Note:... Less

Cisco ISDN Modem Catalyst 6000 1.5Mbps Plug-in Module 8-Ports WSX6608T1RF

HP ISDN Terminal Adapter Plug-In Module Multifunction Interface Module ISDN Pri T1. New Bulk Pack.

Integrates the tone generator, tone detection, system clock, and synchronization functions onto one circuit pack for use in standard, high, and critical reliability systems Provides 4 data links to the Time Division Multiplexing (TDM) bus and a link through the memory bus to the processor Interfaces the 3B2 MSA, DCS, ISDN, and Audix Interface service Allows direct access to one data link from an EIA port on the circuit pack Other data links connect to a digital line circuit and a PDM or TDM to access an MSA, DCS, CMS, ISDN, or Audix Data links can connect to DS1 tie trunks to access DCS or ISDN applications Buy with Confidence. Your order also includes MetrolineDirect's Rock Solid One Year Warranty PLATINUM PROTECTION : This product is eligible for a 2 Year Replacement Warranty!

Used Refurb Cisco 8Port Multichannel T1/E1 8Pri Port Adapter

TN556D ISDN-BRI 4-Wire S/T-NT Interface (12-Ports) Features: Provides 12-Ports connecting to ISDN-BRI terminals Each port has TXT, TXR, PXT, and PXR signal leads Up to 8 ports can be used for adjunct switch application interface (ASAI) links Each port operates at 192 kbps per second and has 2 B-channels and 1 D-channel Requires a packet control circuit pack (TN778) when used in R6si systems or packet bus-equipped R6vs systems Range of up to 3300 ft. maximum from the system to the voice terminal Can connect 24 terminals where each terminal uses 1 B-channel and shares the D-channel Compatible with Definity R7 or later One Year Warranty

DIVA UM-PRI/T1-24

Digium TE405P 4-Port Digital PCI Card *5.0V* (PRI/T1/E1/J1) Digium TE405P Features Provides 4 RJ45 ports for connecting T1/E1/J1 circuits Supports industry standard telephony and data protocols including PRI (North American and Standard Euro) protocol families for voice, PPP, Cisco, HDLC, and Frame Relay data modes Supports both line-side and trunk-side interfaces and advanced call features Supports both E1, T1, J1 environments and is selectable on a per-card or per-port basis Improves I/O speed by up to 10 times resulting in reduced CPU usage and increased card density per server Can add option echo cancellation module ( VPMOCT128 - see option below) Fully compatible with existing software applications and is fully integrated with the Asterisk Open Source PBX/IVR platform Half-length PCI... Less

Digium TE122B Single Port Digital Echo Cancellation PCI Card (PRI/T1/E1/J1) Digium TE122B Features Provides one RJ45 port for connecting T1/E1/J1 circuits Supports industry standard telephony and data protocols including PRI (North American and Standard Euro) protocol families for voice, PPP, Cisco, HDLC, and Frame Relay data modes Supports both voice and data modes on a single span Supports both E1, T1, J1 environments Improves I/O speed by up to 10 times resulting in reduced CPU usage and increased card density per server Includes hardware echo cancellation module ( VPMOCT032 ) Fully compatible with existing software applications and is fully integrated with the Asterisk Open Source PBX/IVR platform Half-length digital PCI board Note: For use only with PCI Express (PCIe) 1.0 compliant... Less

Cisco ISDN Terminal Adapter WAN 128Kbps 4-Ports NM4BURF

OPEN BOX - LIKE NEW Product. 30-Day Money-Back Satisfaction Guarantee!

DIVA UM-PRI/T1-24 PCIE

3COM 3C892A-US ISDN LAN OFFICECONNECT EXTERNAL MODEM (3C892AUS)

TN464F Universal DS1/ISDN PRI Interface TN464F Features Supports DS1 Rate (24 Digital Channels) and E1 Rate (32 Digital Channels) All versions support CO, TIE, DID and OPS (Off - Premises Stations) port types using the robbed signal protocol, proprietary bit-oriented signaling, (BOS) 24th channel signaling protocol, and the DMI-BOS 24th channel signaling protocol All versions also support ISDN-PRI connectivity TN464E and later provide test jack access to the DS1 or E1 line and support the 120A Integrated CSU TN464F and later suffix is required to communicate with Conversant Buy with Confidence. Your order also includes MetrolineDirect's Rock Solid One Year Warranty PLATINUM PROTECTION : This product is eligible for a 2 Year Replacement Warranty!

Digium Asterisk Appliance AA50 - Digium TE407 Digital T1/E1/JI/PRI Card with Echo Cancellation (1TE407PF) The TE407Pis a bundling of our leading TE405P product and our new VPMOCT128 Octasic DSP-based echo cancellation module. The VPMOCT128 provides a certified carrier-grade algorithm that has been labeled a benchmark for echo cancellation. This new module improves upon our older VPM400M and TE411P/TE406P products. With the VPM400M, 16ms or 128taps of echo cancellation were possible across 128 channels. The new VPMOCT128 enables users to eliminate echo tails up to 128ms or 1024 taps across all 128 channels in E1 mode or 96 channels in T1/J1 modes. Further, this module takes advantage of the Octasic Voice Quality Enhancement to provide superior sound quality on all calls. Digium has... Less

Refurb Arn Isdn Bri U Adapter Module W/Nt1 Spare

Definity TN-464F PEC 63316 Universal DS1 / ISDN PRI Features: Supports DS1 Rate (24 Digital Channels) and E1 Rate (32 Digital Channels) Supports DS1 Rate (24 Digital Channels) and E1 Rate (32 Digital Channels) All versions also support ISDN-PRI connectivity TN464E and later provide test jack access to the DS1 or E1 line and support the 120A Integrated CSU Free Shipping! One Year Warranty.

Interfaces the packet bus with the SPE and terminates Link Access Procedure on the D-Channel (LAPD) links Supports packet bus signaling for ISDN D-channel signaling for ASAI applications and for packet bus mainetenance Provides a protocol processing capability to interface the SPE with the packet bus Replaced by TN794 Network Control/Packet Interface Buy with Confidence. Your order also includes MetrolineDirect's Rock Solid One Year Warranty PLATINUM PROTECTION : This product is eligible for a 2 Year Replacement Warranty!

DIVA UM-ANALOG-8 PCIE

Cisco ISDN Terminal Adapter EN Fast EN 1-Port ISDN-PRI E1 1-Port NM1FE1CE1U

DIVA PRI/E1/T1-CTI NA

Cisco ISDN Modem 1.544Mbps 8-Ports AS538CT1

DIVA UM-BRI-2 PCIE

Integrates the tone generator, tone detection, system clock, and synchronization functions onto one circuit pack for use in standard, high, and critical reliability systems Provides 4 data links to the Time Division Multiplexing (TDM) bus and a link through the memory bus to the processor Interfaces the 3B2 MSA, DCS, ISDN, and Audix Interface service Allows direct access to one data link from an EIA port on the circuit pack Other data links connect to a digital line circuit and a PDM or TDM to access an MSA, DCS, CMS, ISDN, or Audix Data links can connect to DS1 tie trunks to access DCS or ISDN applications

3COM 3C10164D-ST NBX QUAD BRI/ST TRUNK CARD ( 3C10164DST )

NT1 FOR U-INTERFACE ISDN BRI