Voice over IP (VoIP) SIP Telephony
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If the Aastra 673xi/675xi has the factory default configuration, it will request an IP
address configuration from the DHCP server of the OpenCom 100 communica-
tions system. The IP address and the location for loading files from the TFTP server
of the OpenCom 100 is received as a part of the DHCP answer.
Now the Aastra 673xi/675xi reads in the configuration files from the TFTP server.
This includes a generic configuration file (“aastra.cfg”) and a device specific config-
uration file for the given MAC address. During this process the OpenCom 100 com-
munications system transfers all settings and by this it configures the system
telephony features for the Aastra 673xi/675xi. If necessary, The firmware stored in
the Aastra 673xi/675xi as well as the diverse language modules are updated also.
Details about the boot procedure, how to program extensions (“XML keys”) and
about the manual DHCP-/TFTP configuration can be found in the english manual
“IP Phone Admin Guide”, which you can download from the Aastra web site.
9.4.3.1 Aastra 673xi/675xi Setup
You can change the configuration and function key settings for each Aastra 673xi/
675xi individually:
1. Call up the Telephony : Devices: System phones menu page in the Configu-
rator.
2. In the Devices list, select the desired Aastra 673xi/675xi.
The menu page shows the current configuration, the function key assignment
and a device graphic.
3. Click on the Change button to determine general settings, e.g. the display lan-
guage. Confirm the setting on the following page with Apply.
4. Depending on the terminal type, different lists with function keys will be
shown:
– Programkeys: You can label this function keys on the device using a paper
strip.
– Tops oftkeys (Aastra 6757i only): You can label this function keys on the
device display. You can switch between 2 layers of function keys using one of
the function keys on the device.
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