Basic Package

Caller ID inbound - display
Caller ID outbound - on/off
Dial extension number from outside
Hunt groups
Ring groups
Three way conferencing
Speakerphone
Call barring

Mute
Redial
Last calls received/made/missed
Attended/blind transfer
Call waiting
Call forward
Do not disturb
Auto answer

On hold music - classical
Answer any ringing extension
Auto complete numbers
Call hold ringback
Multiple ring tones
Extension billing per user/site
Web billing access
Call Detail Report per user/site