This is a new RCA 4 line small business telephone. It has all the feature of the Avaya telephone system except for the Auto- Attendant Voice Mail features. This system supports Caller ID, Hold , Conference, Transfer and speed dial function buttons, The RCA 4 line telephone starts at $ 135.00 per phone and it is expandable up to 12 phones. It is a great choice for the small company or a company working from home. Call me today , 303-650-5000, for your Free quote and system design.