- Pach & Company
 - Offering CCTV enclosures and mounts, and telephone access control systems. - Rath Microtech
- ADA compliance from elevator emergency telephones, security phones, pool phones, or courtesy phones.
- Rescue Phone, Inc.
- Designed for hostage and barricade incidents.
- Talk-A-Phone Co.
- ADA compliant hands-free emergency phones for elevators, parking, airports, campuses, medical centres, access control and other applications.
- Viking Electronics
- ADA emergency/elevator phones, digital announcers, call sequencers, door intercoms, automated attendants, and more.
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