... also connect this equipment to the speaker, and it supports two-way intercom function. -It adopts the TCP/IP network protocols and ... ,DDNS,UPNP,NTP,PPPOEOther Protocol802.11b/g/nOther FeaturesVideo controlsupportDual way audiosupportMotion DetectionsupportTriggered ActionsEmail/FTP/ send message to alarm serverUser SettingThree ...