Voice over IP (VoIP) VoIP System Telephones
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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
call between two VoIP system telephones, call data is exchanged directly
between the two VoIP system telephones.
■ During the device’s start procedure, the IP address is configured and the device
software is requested via the DHCP and TFTP network protocols.
10.4.2 VoIP System Telephone Configuration
The VoIP system telephones OpenPhone 63IP and OpenPhone65IP obtain the
required IP address configuration and operating software via the DHCP, BOOTP
and TFTP IP protocols. After the power supply is assured, the device’s internal boot
loader is started which controls the further start procedure.
Standard operating procedure is to contact the OpenCom 510’s DHCP server so
that the start procedure can be concluded without problems. To register a new
VoIP system telephone, proceed as follows:
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