Aastra Telecom CT9143i - Manual (Page 25)

New Features in Release 2.3
RN-001029-02, Release 2.3, Rev 00 21
SIP IP Phone Models 9143i, 9480i, 9480i CT and 5i Series Phones Release Note 2.3
Multiple DHCP Servers
In Release 2.3, the IP Phones can now receive messages from multiple DHCP servers.
After the phone receives its first DHCP message, it listens for a specific time period, for more
DHCP messages. If the first DHCP offer contains configuration server information (Options 43,
66, 159 or 160), then the phone times out and continues using the first DHCP offer, without
listening for more DHCP offers. If the first DHCP message contains no configuration server
information, the phone continues to listen for other DHCP messages. If the second DHCP message
contains configuration server information and other conditions, the phone chooses the second
DHCP message over the initial DHCP message.
IMPORTANT NOTE
Users currently using multiple DHCP servers on a single network could be affected by this
new feature.
Note: If the DHCP Option Override parameter is enabled with a value
(Option 43, Option 66, Option 159, or Option 160), the phone checks the
override option setting before timing out.