Computer-Telephony Integration:

• AGI (Application Gateway Interface)
• Graphical Call Manager
• Outbound Call Spooling
• Predictive Dialer
• TCP/IP Management Interface
• Call ID Display

Scalability:

• TDMoE (Time Division Multiplex over Ethernet)
• Allows direct connection of CTI PBX
• Zero latency
• Uses commodity Ethernet hardware
• Voice-over IP
• Allows for integration of physically separate installations
• Uses commonly deployed data connections
• Allows a unified dialplan across multiple offices

Codecs:

• ADPCM
• G.711 (A-Law & μ-Law)
• G.723.1 (pass through)
• G.726
• G.729
• GSM
• iLBC
• Linear

Protocols:

• IAX™ (Inter-Asterisk Exchange)
• H.323
• SIP (Session Initiation Protocol)
• MGCP (Media Gateway Control Protocol)
• SCCP (Cisco® Skinny®)

Traditional Telephony Interoperability:

• E&M
• E&M Wink
• Feature Group D
• FXS
• FXO
• GR-303
• Loopstart
• Groundstart
• Kewlstart
• MF and DTMF support
• Robbed-bit Signaling (RBS) Types

PRI Protocols:

• 4ESS
• BRI (ISDN4Linux)
• DMS100
• EuroISDN
• Lucent 5E
• National ISDN2
• NFAS