Cetis is a privately held U.S. corporation headquartered in Colorado Springs. In 1982, Cetis introduced Teledex Diamond Series, the first hotel phone with a faceplate and programmable guest service key. Today, Cetis telephones are preferred or approved by all major hotel brands.Cetis designs, engineers, manufactures and supports hotel phones including Teledex, TeleMatrix and Scitec brand analog and VoIP hotel phones, designed and priced for every hotel chain application.
Cetis telephones are interop-certified with all major PBX, IP-PBX, and cloud phone system providers, including but not limited to Avaya, Mitel, NEC, Alcatel-Lucent, Cisco, Panasonic, Broadsoft, Asterisk, and others.


