User guide

SIP Telephony124
Voice over IP (VoIP)
Note: If you want to allocate the VoIP profile to an
Forum IPhone 512 or Forum IPhone 545 SIP system telephone,
the Voice Activity Detection option should be deactivated for all
codecs.
2. Under Telephony: Devices: System phones configure the
common settings, the programmable keys and the softkeys for
the Forum IPhone 512 / Forum IPhone 545 (see
Forum IPhone 512 / Forum IPhone 545 Setup starting on
page 124).
3. Connect the Forum IPhone 512 / Forum IPhone 545 to your
network and plug in the power supply. Details about this can
be found in the installation manual which is provided with the
Forum IPhone 512 / Forum IPhone 545.
If the Forum IPhone 512 / Forum IPhone 545 has the factory
default configuration, it will request an IP address configuration
from the DHCP server of the Forum 523/524 communications sys-
tem. The IP address and the location for loading files from the
TFTP server of the Forum 523/524 is received as a part of the
DHCP answer.
Now the Forum IPhone 512 / Forum IPhone 545 reads in the con-
figuration files from the TFTP server. This includes a generic con-
figuration file and a device specific configuration file for the given
MAC address. During this process the Forum 523/524 communi-
cations system transfers all settings and by this it configures the
system telephony features for the Forum IPhone 512 /
Forum IPhone 545. If necessary, The firmware stored in the
Forum IPhone 512 / Forum IPhone 545 as well as the diverse lan-
guage modules are updated also.
Note: The configuration files are sent using an encrypted format
(file extension: *.tuz).
Forum IPhone 512 / Forum IPhone 545
Setup
You can change the configuration and function key settings for
each Forum IPhone 512 / Forum IPhone 545 individually:
1. Call up the Telephony: Devices: System phones menu
page in the Configurator.