Avaya 1230 - Page 290

Figure 46: Security icon enabled
Note:
Connecting to the server requires that the IP Deskphone uses, at a minimum,
TLS_RSA_WITH_AES_128_CBC_SHA, and as an objective,
TLS_RSA_WITH_AES_256_CBC_SHA. Because this is a server-specific configuration, the IP
Deskphone must be prepared to handle both. There is no difference in screen indication, regardless
of the type of cipher used.
The following table describes the configurations that affect the presence of the security icon on the
idle screen of the IP Deskphone.
Configuration
Result Idle Screen Security Icon
Display
Default: UDP + TCP SIP is unsecured. No
UDP only SIP is unsecured. No
TCP only SIP is unsecured. No
TLS only Connection is only established if
SIP is secure.
Yes
UDP + TLS: unsupported Unsupported. Unsupported
TCP + TLS Connection is established with
either TCP or TLS.
Yes – only if TLS connection is
used
No – if fall back to TCP occurs
UDP + TCP + TLS Connection is established using
TCP or TLS, potentially falling
back to using only UDP.
Yes – only if TLS connection is
established
No – if fall back to TCP or UDP
occurs
None : unsupported Unsupported Unsupported
Unsupported configurations cannot be saved. If the configurations are unsupported, the IP
Deskphone displays an error message.
The following is an example of an error message for unsupported configurations:Unsupported:
UDP + TLSUnsupported: No protocols enabled.
Security
290 SIP Software for Avaya 1200 Series IP Deskphones-Administration March 2015
Comments? infodev@avaya.com