||The NEC SL1100 phone system can grow from 4
incoming line X 8 digital station ports X 4 analog station ports for
single line phones or fax machines and expands to a maximum of 120
extensions of which 72 can be multi-line terminals. The system can
be expanded to a maximum of 36 analog trunks, 48 PRI/T1 trunks, or 32
(SIP) trunks. The actual expansion depends on the number of KSU's
and the type of PCB's installed.
The NEC SL1100 KSU by its self is sold at an initial configuration of 0
lines in X 8 digital stations X 4 analog station ports. A 4-port
trunk card is not included when the KSU is sold its self.