NEC ETT-1-1 Single Line Business Phone Immunex PBX Desktop Telephone Japan

NEC ETT-1-1 Single Line Business Phone Immunex PBX Desktop Telephone Japan

The NEC ETT-1-1 is a single line desktop business telephone designed for use with Immunex PBX systems. It features a full array of PBX feature access keys — including Flash, Transfer, Hold, Call Park, Call Forward, Night Answer, and System Speed Dial — built into the face of the phone alongside a standard 12-button dial pad. The phone is manufactured by NEC Corporation and made in Japan.

Specifications & What's Included

• Brand: NEC Corporation
• Model: ETT-1-1
• Serial / Part Number: 16284800
• Type: Single line desktop telephone
• Compatible system: Immunex PBX
• Dial pad: Standard 12-button keypad
• Feature buttons: Transfer/Flash, Call On, 3-Call Pick-Up, System Speed, Call Fwd, Dial on Sys, Hold, Call Park, Night Answer, Flash
• Ring tone selector: 3-position adjustable switch (positions 1, 2, 3) on bottom panel
• Handset: Corded, coiled cord
• Color: Ivory/beige
• Country of manufacture: Japan
• Included: Phone with handset and coiled cord only

Applications

The NEC ETT-1-1 is a single line analog business telephone from the 1980s era of proprietary PBX telephone systems. It was designed specifically for use with Immunex PBX equipment, a business phone system popular in small-to-medium office environments during that period. Phones like the ETT-1-1 connected to a PBX switchboard and gave users one-touch access to common PBX features — hold, transfer, call park, and speed dial — without dialing feature codes manually. NEC was a major supplier of PBX and key telephone systems in North America and Japan throughout the 1980s and 1990s, and the ETT series represented their entry-level single line station equipment. Today these phones are sought by collectors of vintage office equipment and by businesses or individuals still running legacy Immunex or compatible analog PBX infrastructure.