What is Asterisk?

• Internet Protocol PBX (IP PBX) in software

• Open Source (GPL)

• Supports Many Signaling Protocols:

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

• Supports Media Protocols:

• • IAX™ (Inter-Asterisk Exchange)
  • RTP (Real-time Transport Protocol)