Each ShoreTel 60/12 voice switch can support either 60 IP phones or 12 analog lines. The analog ports on a ShoreTel SG-60 are available as 8 FXS/FXO ports and 4 FXS ports. In addition to the IP and analog connectivity the ShoreTel 60/12 switch provides, the voice switch can interface to analog trunks via loop start or wink start signaling. The ShoreTel SG-60 offers two RJ-45 Ethernet connections, a DB9 port for consoling into the unit, and an RJ-21X port for connecting a patch panel. The 60/12 also has a 3.5 mm stereo input for connecting music-on-hold, and a 3.5 mm stereo output for overhead paging
