Software Requirements

The following software is required for 4600 Series IP Telephones to work properly:

• The DHCP server and application must be installed and properly administered, as described in DHCP.

CAUTION: A DHCP server is not mandatory, but static addressing is necessary when a DHCP server is unavailable. Because of difficulties associated with static addressing, we very strongly recommend that a DHCP server be installed and that static addressing be avoided.

• The TFTP and/or HTTP file server and application must be properly administered, as described in TFTP (H.323 Only) and HTTP.

CAUTION: A file server does not need to be available for the Avaya IP Telephones to operate. The Avaya IP Telephones obtain important information from the script files on the file server and depend on the application file for software upgrades. If the file server is not available when the Avaya IP Telephones reset, the telephones will register with the media server and operate. Some features may not be available, and restoring those features requires resetting the Avaya IP Telephone(s) when the file server is available.

• For 4630 and 4630SW IP Telephone environments, if users are to have access to LDAP directories or corporate Web sites, the appropriate servers must be in place. The 4630/4630SW Telephones must be appropriately administered in accordance with Server Administration.

CAUTION: 4630 IP Telephone Release 1.72 introduced significant software architecture changes. Thus, unlike most 4600 Series IP Telephones software releases, 4630 IP Telephone Release 1.72 and later cannot be downgraded to a release earlier than 1.72. Attempting to do so renders the 4630 (and 4630SW, if Release 1.8 or greater) set inoperable. In addition, if you are upgrading a 4630 from a release prior to Release 1.61, you must first upgrade to Release 1.61. Then you must upgrade to the newer Release. You cannot upgrade directly from a pre-1.61 Release to a post-1.61 Release for the 4630.

• For 4610SW/4620/4620SW/4621SW/4622SW/4625SW IP Telephone environments, if users are to have access to LDAP directories or corporate WML Web sites, the appropriate servers must be in place. You must download the LDAP Directory Application software from the Avaya support Web site. You must appropriately administer the telephones in accordance with Server Administration.

NOTE: Ensure that all required parameters are configured correctly. For Avaya Media Server information, see your administration documentation. For the DHCP and file servers, see Chapter 4: Server Administration.