is displayed on the phone screen and the IP Deskphone makes five attempts to contact the DHCP
server.
If the DHCPv6 server sends a REPLY message in answer to the DECLINE message, the IP
Deskphone removes the duplicate IP address from the list of IPv6 addresses, resources associated
with the duplicate address are freed, and the DHCP process restarts.
If no reply is received, the duplicate address is removed, resources associated with the duplicate
address are freed, and the DHCP process restarts.
For more information, see
Duplicate IPv6 addresses from DHCPv6 server on page 337.
IP Deskphone behavior during a non-consultative transfer
When a user transfers a call, then the IP Deskphone prompts with the following question: “Consult
with party?”. Pressing the No soft key initiates a non-consultative transfer.
With SIP 4.4, a soft key with the caption “Exit” has been added to the transfer dialog for a non-
consultative transfer. Pressing this soft key closes the “Transferring....” dialog . The IP Deskphone
then displays any local calls, including the transferred call. The transferred call displays a state of
“Transferring” until “Transfer successful” or “Transfer failed”, is displayed, depending on the
transfer results.
For more information, see the IP Deskphone User Guide for the appropriate model.
Debug port security
SIP 4.4 introduces a security change to prevent unauthorized access and intervention in IP
Deskphone operation through the debug port (Accessory Expansion Module (AEM) port) when a
dongle is used.
The debug port is now disabled by default; enabling the debug port requires access to the
Advanced Diag Tools menu, which is always protected by the admin password.
The configuration option Debug port has been added to the Advanced Diag Tools menu. The
default value is disabled.
For more information, see Debug port security on page 300.
HTTPS support in BootC mode
In SIP 4.4, the following functionality is introduced:
• When a firmware upgrade is performed and there is not enough memory for the upgrade, the
IP Deskphone automatically reboots in BootC mode and upgrades in BootC. After the upgrade
is completed, the IP Deskphone automatically reboots again and starts up in normal mode.
• Support of HTTPS protocol (for provisioning and firmware upgrades) is added to BootC mode.
New in this release
20 SIP Software for Avaya 1200 Series IP Deskphones-Administration March 2015
Comments? infodev@avaya.com
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