Call capability for analog, DCP, and IP phones

ISDN BRI/PRI trunk interfaces

Non-ISDN digital DS1 trunk interfaces

Outbound dialing through the local PSTN (local trunk gateway) from analog, DCP, and IP phones

Inbound calls from each trunk to pre-configured local analog or IP phones that have registered

Direct inward dialing

Multiple call appearances

Hold and call transfer functions

Contact closure feature

Local call progress tones (dial tone, busy, etc.)

Emergency Transfer Relay (ETR) in cases of power loss

Auto fallback to primary MGC

IP station registration