DETEWE OpenCom 130, User Manual

Page: 112 / 204

Voice over IP (VoIP) VoIP System Telephones
110
starting on page 114). Furthermore, this software offers local answering-
machine functionality and integrability with CTI applications.
9.4.1 Device Properties
The VoIP-enabled versions of the system telephones OpenPhone 63 IP and
OpenPhone 65 IP offer the same features as the corresponding system tele-
phones. Using VoIP system telephones is therefore not much different from using
standard system telephones. The following differences exist:
■
Two RJ45 connector ports are available for ethernet connection. The ports are
connected to one another via the telephone’s internal switch. The switch sup-
ports 10 Mbit/s or 100 Mbit/s full-duplex with priority given to VoIP data trans-
mission.
LAN Port : Allows the telephone to connected to the LAN. Use a non cross-over
RJ45 patch cable to connect to a Hub or Switch.
PC Port : Allows the telephone to be connected to a workplace computer. Use a
non cross-over RJ45 patch cable to connect to the PC’s network port.
■
The VoIP system telephone’s power supply is provided by an extra plug-in
power supply. It is also possible to provide a power feed via PoE (“Power over
Ethernet”). PoE requires special devices for power feeds, as well as a completely
wired RJ45 connection line.
■
You can also connect a standard headset via RJ45 sockets (DHSG standard) to
VoIP system telephones.
■
VoIP system telephone’s audio signals are generated by the telephone itself.
DTMF dial tones and Music on Hold are produced by the Media Gateway
function.
■
A VoIP system telephone can also be operated without a permanent con-
nection to the communications system, for example via an on-demand RAS
connection.
■
Signalling data for call control, call data during three-way conferences, connec-
tions to conventional terminals and external connections is exchanged
between the VoIP system telephone and the communication system. During a