Spec Sheet Preview: The central exchange/system shall be Alpha Communications® / Ring RM5000 series or approved equivalent. System shall have a maximum capacity of 56 total master and/or remote stations, in multiples of 8 stations. System shall have four (4) conversation paths (links), permitting up to four (4) simultaneous conversations. The RM5000 central exchange (if less than 56 station capacity) can be field upgraded with the addition of subscriber card(s) and required extension …