• Open Source Asterisk IP PBX
• High performance OSLEC (Open Source Line Echo Canceller)
• Configurable IVR menu
• Voice Mail,Voicemail to Email
• Call forward, call waiting, call transfer
• Call conference
• Call queues,Ring group
• SIP trunking, IAX trunking
• PSTN analog trunk
• Call Detail Record
• Access vis: SSH/telnet/web
• Firmware upgradable via web interface
• 50+ available SIP/IAX2 extensions
• 20 concurrent calls

The Quadro 16x offers a balanced approach to IP and analogue with connections for up to 16 analogue phones or devices and 18 local IP phones (expandable to 50 x IP extensions purchasing software keys in 16-port increments).

• 16 FXS ports
• 4 FXO ports
• 18 IP extensions plus additional 32 IP extensions with IP key upgrade (total 66 extensions)
• 1 WAN, 1 LAN 
• Easy to configure
• Flexible, secure, inexpensive
• FXS ports reduce costs associated with expensive IP phones
• Rack Mount casing available
• Extended warranty option available for additional 3 years (total 4 year warranty)
• Award-winning IP PBX solution

The Quadro 16xi delivers three high-bandwidth ISDN ports to serve as many as 16 analogue phones and 18 local IP extensions (expandable to 50 purchasing software keys in 16-port increments)

• 16 FXS ports
• 3 ISDN ports
• 18 IP extensions plus additional 32 IP extensions with IP key upgrade (total 66 extensions)
• 1 WAN, 1 LAN 
• Easy to configure
• Flexible, secure, inexpensive
• FXS ports reduce costs associated with expensive IP phones
• Rack Mount casing available
• Extended warranty option available for additional 3 years (total 4 year warranty)
• Award-winning IP PBX solution

The Quadro 2x was designed for small offices or self-sufficient branches with as many as 18 individuals. The price point makes it affordable for even home offices or teleworkers.

• 2 FXS ports
• 1 FXO port
• 8 IP extensions plus additional 8 IP extensions with IP key upgrade (total 18 extensions)
• 1 LAN, 1 WAN
• Easy to configure
• Flexible, secure, inexpensive
• Extended warranty option available for additional 3 years (total 4 year warranty)
• Award-winning IP PBX solution