155 results for 'avaya 56'

ESI IVX Gen 1 482 Port Expansion Card 5000-0257

The ESI IVX S-Class 482 is an expansion port card for ESI IVX 42S-Class phone systems and C-Class systems. The ESI IVX 482 EXP card provides four CO lines, eight digital extensions ports, and two...

Adtran Atlas 800 Series HDLC Module 1200222L1

The Adtran 1200222L1 is an HDLC module for Adtran Atlas 800 modules. The card provides 128 HDLC controllers at DS0 speeds (56/64 Kbps). The module is required for use with PRI over T3 applications...

Adtran NetVanta WAN-DDS DBU NIM Network Module (1200861L1)

The Adtran NetVanta 56/64k 1200861L1 is a Network Interface Module (NIM) that terminates a single 56K or 64K DDS circuit.   Adtran 1200861L1 Features: A single RJ-48S connector...

Adtran ISDN BRI DBU Module IQ TSU (1204004L2)

The Adtran 1204004L2 provides 2B+D ISDN BRI dial backup via RJ-45 U-interface (1B+D in IQ 310 with 56/64k DDS NIM). The module re-establishes physical layer and Frame Relay signaling in the event of...

Vertical Edge VW-E5000i-24 IP Phone

The Vertical Edge E5000i-24 is a basic 24 button phone but provides many features. Vertical VW-E5000i-24 Features: 24-flexible (programmable) button phone; plus 8 fixed buttons & 3 soft...

ESI 55D Digital Phone 5000-0736

The ESI 55D is a digital phone designed for the ESI CS 50 and 50L, CS100, CS200, CS600, CS1000, and IP 900 servers.  The ESI 55D, part number 5000-0736, has 30 programmable buttons, a backlit...

ESI 55 Gigabit IP Phone 5000-0858

The ESI 55 Gigabit 5000-0738 is a VoIP phone designed for the ESI CS 50 and 50L, CS100, CS200, CS600, CS1000, and IP 900 servers.  The ESI IP 55, part number 5000-0738, has 30 programmable...

ESI 55 10/100 IP Phone 5000-0737

The ESI 55 5000-0737 is a VoIP phone designed for the ESI CS 50 and 50L, CS100, CS200, CS600, CS1000, and IP 900 servers.  The ESI IP 55, part number 5000-0737, has 30 programmable buttons, a...