DoorKing, Inc. - Inglewood, CA
Manufacturer
Manufacturer of telephone entry control systems for rural & remote applications. Specifications include 16 VAC, 250 mA power supply, 500 event history buffer, 100 device codes & 0.0 A ringer equivalence. Various features include 500 event history buffers, relay control from PC, four hold open time zones, email notifications, digital voice circuit, schedule un-lock/lock times, add or delete access codes, relay boards, holiday schedule, do-not-disturb feature, built-in clocks/calendars, call waiting & forwarding, answer machine bypass feature & intercom modes. Suitable for apartment & condominium complexes, gated communities, college resident halls, mixed-use buildings & businesses. ETL & UL listed. FCC safety standards. Two year warranty.
Brand Names: DKS, DoorKing
www.doorking.com/index.php

Sound Powered Communications Corp. - Trenton, NJ
Manufacturer, Custom Manufacturer
Manufacturer of sound powered telephones & visitation telephones for correctional institutions. Sound powered telephone products include headsets, intercom stations, field telephones, connecting cables, cable reels, jackboxes & ancillary equipment, industrial market also served.

CST Corp. - Houston, TX
Distributor, Service Company
Distributor of telephony systems including wireless, wire line, enterprise, & optical networks. Hotel & business phones.

Steiner Electric Co. - Elk Grove Village, IL
Distributor, Manufacturer, Custom Manufacturer, Service Company
ISO 9002 certified distributor of telephone systems, equipment & accessories for OEM & rural or remote applications. Services include application engineering, design & installation support, on-site startup & troubleshooting, inventory management, mobile technical service, preventative maintenance, repair, job-site delivery, engraving, product modification, technical training, integrated supply & 24/7 emergency services.
Brand Names: Cisco Systems, GC Electronics, Leviton, Spectralink, Symbol Technologies

Caprock Communications - Houston, TX
Service Company
Satellite communications services including installation, maintenance, telephony, networking, engineering, design & monitoring.

Xblue Networks - Lenexa, KS
Distributor, Manufacturers' Rep
Distributor & mfr's. rep. for IP & conventional based telephony systems.

Unimax Systems Corporation - Minneapolis, MN
Service Company
Telephony technology services

Steiner Power Systems Sub. of Steiner Electric Co. - Elk Grove Village, IL
Distributor, Manufacturer, Custom Manufacturer, Service Company
ISO 9002 certified distributor of telephone systems, equipment & accessories for OEM & rural or remote applications. Services include application engineering, design & installation support, on-site startup & troubleshooting, inventory management, mobile technical service, preventative maintenance, repair, job-site delivery, engraving, product modification, technical training, integrated supply & 24/7 emergency services.
Brand Names: Cisco Systems, GC Electronics, Leviton, Spectralink, Symbol Technologies