The ITT-Cortelco Centurion telephone series is a budget-conscious feature phone, with business-type K-style handsets and essential features at a competitive price.
Please note that message waiting lamps on Centurion phones are 90-volt only, which is available mainly on analog PBX systems. This type of message waiting lamp will not work with phone company voicemail. Nor will it work with a PBX that doesn't support the 90-volt signalling standard.
1-line office phones
OFFICE PHONES 
VoIP PRODUCTS 
