Divus OPENDOOR, Manual

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DIVUS OPENDOOR manual 12
Network stream: Essentially a network stream is a data flow, available over the network. In the case of -Cam,
the stream is built of single pictures, which are retrieved from the Videophone software as data flow and showed
in the main window of the Videophone software as video.
SIP: the “session initiation protocol” is a network protocol for communication sessions between 2 or more
participants. Its technical name is RFC 3261 and it is especially used for VoIP installations.
UDP: "User Datagram Protocol". It is a simplified network protocol, over which the backend of the Videophone
software can be remote controlled. It can be used to create an individual "GUI" which can be used instead of the
Videophone software Frontend. Of course also the Videophone software frontend communicates with the
backend over UDP telegrams.
Videophone software:
Software for the communication with the video intercom and for showing the picture of
the door camera, as well as for the communication of the individual clients among each other.
VoIP server: This server is a software, which administers the telephone calls of the individual devices in the
network like a telephone central; the identification of the VoIP servers simply takes place over the IP address of
the device, on which the VoIP server is running. In a network also several VoIP server can coexist without
problems; it's only important that all devices, which should communicate among each other, uses the same VoIP
server.
VoIP: "Voice over IP" is an international standard, which allows speech communication in a network. Developed
primarily for internet telephony, this technology is used also in other areas, as for example in telephone centrals
or the Videophone system.