Expandability
DuraFon 1X & SN-920
4.How many handsets will each base unit support?
5.How many bases (lines) can one handset be assigned?
6.How many lines per base?
DuraFon 4X & EP-490
7.How many handsets will each base unit support?
8.How many lines can one handset be assigned?
9.How many lines per base?