H323 Install Page 8
15-601046 Issue 14j (10 March 2009)IP Office 4.2
1.1 What is New

IP Office 4.2

The following changes specific to IP phone support have been made as part of the IP Office 4.2 release.
·Support for 1600 Series Phones
IP Office 4.2 Q4 2008+ supports the 1603, 1608, 1616 IP phones.
·HTTP Server Support
For Avaya IP phones using IP Office DHCP, the address of the HTTP server from which those phones should
download their software and settings files can now be specified in the IP Office configuration. 4600 Series and
5600 Series phones attempt to load files via HTTPS and then HTTP before falling back to TFTP. 1600 Series IP
phones only support HTTPS or HTTP.
The IP Office control unit supports HTTP-TFTP relay for HTTP file requests from phones.
·HTTP-TFTP Using an Embedded Memory Card
For IP Office 4.2, using the Embedded Voicemail memory card is also supported for HTTP file requests for
up to 50 IP phones. This is done by setting the TFTP Server IP Address and HTTP Server IP Address
to the control unit IP address. This method is supported for up to 50 IP phones.
·HTTP-TFTP Using IP Office Manager
For the IP Office 4.2 Q4 2008 maintenance release, HTTP-TFTP Relay is support using IP Office Manager
as the TFTP server. This is done by setting the TFTP Server IP Address to the address of the Manager
PC and the HTTP Server IP Address to the control unit IP address. This method is supported for up to 5
IP phones.
·HTTP User Backup and Restore
The HTTP file support methods detailed in this manual are for the download of phone firmware, settings and
language files to phones. HTTP support for phone user settings backup and restore requires a separate HTTP
server, the address of which is defined with the phone settings files rather than through the DHCP server
configuration settings.
·Secondary Site Specific Options Number
A Site Specific Option Number (SSON) is used by Avaya IP phones when requesting phone specific settings from a
DHCP server. When the IP Office is acting as the DHCP server, the matching number must be set in the IP Office
configuration. IP Office 4.2 now provides two fields for settings SSON numbers in order to support Avaya 4600
and 5600 Series IP Phones (which use a default SSON of 176) and Avaya 1600 Series phones (which use a default
SSON of 242).
·IP Phone Restart using System Status Application
Individual Avaya IP phones or groups of phones can be selected and then restarted remotely using the System
Status Application. This allows individual phones or groups of phones to be restarted in order to upgrade their
·IP500 DHCP Enhancements
The scope of DHCP support on IP500 has been enhanced in a number of areas.
·Full Avaya IP Phone Support
Previous only a maximum of 5 IP phones have been supported if using the IP Office for DHCP and TFTP
functions. An external DHCP server is required to support more than 5 Avaya IP Phones. For IP Office 4.2+,
the IP500 supports up to 272 Avaya IP phones, the maximum extension capacity of the IP500 control unit.
·Multiple DHCP IP Address Pools
On each IP Office LAN interface, up to 8 DHCP address ranges (called 'pools') can be specified. These pools do
not have to be on the same subnet as the IP Office itself. This allows devices being supported by IP Office
DHCP to be given addresses on a different subnet than the IP Office.
·DHCP for Avaya IP Phones Only
The DHCP pools provided by the IP Office can be restricted for use by Avaya IP phones only. The IP Office will
then not respond to DHCP request from other devices.
·Embedded Card File Management
For systems with a compact flash memory card installed, the contents of the card can be viewed through Manager.
This mode is accessed through the File | Advanced | Embedded File Management option. This view can also
be used to add and remove files from the card. This may be useful when the memory card is being used to store
music on hold files and or phone firmware files.
·IP500 VCM Controls
For IP Office 4.2+, the VCM controls for echo and comfort noise supported in the IP Office configuration (System
| VCM) are now also applied to IP500 VCM cards.