Products
Sentinel - No Bill Interface
(Secure entry loudspeaking telephone and no call charge solution for doorstation communication)
The Sentinel secured entry telephone was designed to meet the communication needs of today's apartment and office buildings that have a constant need for entry supervision, without the need of a duty guard or monitoring facilities.
The Sentinel connects to the Tenant/Office via the Telecommunication network using a single telephone line to call up to 1000 different numbers. This eliminates the need for a separate intercom or PABX, both of which require dedicated wiring to each unit and many thousands of dollars in initial and running costs.
Now Dallas Delta has produced a No Bill Interface for the Sentinel, this means that the Sentinel no longer requires a dedicated PSTN line and therefore there are no costs for calls made from the Sentinel.
The No Bill Interface connects between the PSTN and the building telephone wiring, all wiring is made to disconnection modules (Krone blocks) ensuring a very easy setup. The No Bill Interface will also accommodate up to 9 Sentinels.
