... also connect this equipment to the speaker, and it supports two-way intercom function.3. It was equipped with pan/tilt function ... ,DHCP,DDNS,UPNP,NTP,PPPOEOther Protocol802.11b/gOther FeaturesVideo controlsupportDual way audiosupportMotion DetectionsupportTriggered ActionsEmail/FTP/external alarm/send message to alarm ...