Aastra Telecom 53I - Manual (Page 28)

Deployability Features
22 RN-001029-00, Rev 03, Release 2.1
IP Phone Release Notes 2.1
Deployability Features
Server and Protocol Identification via DHCP Feature
The IP Phones now support additional download protocols according to RFC2131
and RFC1541 to support DHCP option 66.
Option 66 is part of the DHCP Offer message that the DHCP server generates to
tell the phone which configuration server it should use to download new firmware
and configuration files. In addition to supporting the IP address of a TFTP server
in this field, the phone now supports a URI format for specifying the other
configuration server types.
Your DHCP server configuration file, such as the dhcpd.conf file, may include one
of these lines to configure the configuration server protocol and the server details.
Protocol Format Examples
HTTP http://<server>/<path> option tftp-server-name “http://192.168.1.45”;
option tftp-server-name “http://192.168.1.45/path”;
option tftp-server-name “http://httpsvr.example.com/path”;
HTTPS https://<server>/<path> option tftp-server-name “https://192.168.1.45”;
option tftp-server-name “https://192.168.1.45/path”;
option tftp-server-name “https://httpssvr.example.com/
path”;