60 SIP users, 15 concurrent calls
2 FXO
IP/SIP Failover
Multiple SIP trunks
Fax over IP (T.38 and Pass-through)
Built-in VPN server/client
TLS / SRTP security

Full VoIP Features

Call Recording
Voicemail
Call forking
Auto CLIP
Fax to Email
Black/White list
Auto Attendant
Conference Call