Telephone Intercom Systems R & S services a wide range of telephone intercom systems and over the years we have come to know which products are consistantly reliable and give you the greatest return for your dollar. You can be assured that these systems will give you years of reliable service.   MODEL 1812 Typical use: Residential applications where a dedicated central office line is not available. Dedicated phone line not required. Interfaces directly with resident's phone line Double ring, call waiting, call forwarding, "Do Not Disturb" feature. Built-in time clock for time zones. Can store up to three "call out" telephone numbers. Available in surface or flush mount. Hands free operation. Keyless entry codes. Built-in postal lock. MODEL 1816 Typical use: Apartment houses, college dormitories, housing authority projects, and where tenants may not have central office phone service. Dedicated phone line not required for communica-tion: system interfaces directly with tenant's phone and uses buildings existing phone wiring. Double ring, call waiting. No reprogramming necessary when tenants move. Programmable directory codes. Can interface with up to 3,100 phone lines. Hands free operation. Keyless entry codes. Built-in postal lock Most units available in 24K gold-plated faceplates (additional charges apply).
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