
2
4 Overview
PA2 is a SIP audio and video intercom developed specifically for the needs of industry users.
Media streaming adopts the standard IP/RTP/RTSP protocol. It inherits the advantages of good
stability of azimuthphone and carrier-grade sound quality, and is perfectly compatible with all current
mainstream sip-based IPPBX/ soft switch /IMS platforms, such as Asterisk, Broadsoft, Metaswitch,
3CX, Elastix, etc. It sets a variety of functional interfaces in one: intercom, broadcast, video, security,
recording, broadcast, adapt to a variety of use environment, convenient and rapid deployment of
equipment, is the ideal choice.