Divus OPENDOOR, Manual

Page: 11 / 111

DIVUS OPENDOOR manual 11
Following scheme shows an example for the application of OPENDOOR with Videophone:
1.2 IMPORTANT TERMS
For better comprehension an explanation of some important terms will follow:
Backend: Main process of the Videophone software. It contains the entire functionality of the software and runs
in the background. Only through the "Popup" of the video window and the playback of the bell sound at an
incoming call, the backend can be noticed.
Client: A client is a software or a device, which can register on the VoIP server and make so calls to other clients;
The Videophone software is such a client. Each client is identified by a treble code (101,102,103…) and reachable
under this treble number.
Codec: procedure to encode and decode analogue/digital data or signals, specially audio and video data.
DTMF sounds: „"Dual-Tone-Multi-Frequency", is a standardized procedure for the transmission of the chosen
telephone number to the telephone network. Every sign corresponds to a certain sound, which consists of several
frequencies and is recognized from standardized telephone centrals and also from the telephone network.
OPENDOOR also uses this technology in order to execute an action through the transmitted DTMF sound to
activate for example the door opener. Only short sign combinations, but usually only single numbers are used for
this purpose. For example the OD-Sip Plus module in his standard configuration will open the door if it receives
the digit “2” from the client as DMTF code during the opened speech communication.
Frontend: The frontend of the Videophone software is the integrated "GUI". Over this graphic surface, the user
can configure the software and use the functions of the software.
GUI: "Graphical User interface". It's a graphic surface, over which the user can control the software. Also the
Videophone software has an integrated "GUI."