HTTP

HTTP

HTTP is potentially a more secure alternative to TFTP, particularly when Transport Layer Security (TLS) is used to create HTTPS (Secure HTTP). You can store the same application software, script file, and settings file on an HTTP server as you can on the TFTP server. With proper administration, the telephone seeks out and uses that material appropriately. However, not all 4600 Series IP Telephones support HTTP, as indicated in Table 1.

Table 1: File Servers and Compatible Telephone Software
File Server	IP Telephone Models	IP Telephone Software Release Number
HTTP, HTTPS, or TFTP	4601+, 4602SW+, 4625SW 4601, 4602, 4602SW, 4610SW, 4620, 4620SW, 4621SW, 4622SW	R2.7 R2.2+
TFTP	4606, 4612, 4624, 4625SW, 4630, 4630SW, 4690	All releases

As with TFTP, some functionality might be lost by a reset if the HTTP server is not available.
For more information, see DHCP and File Servers and HTTP.