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Release Notes for Avaya Scopia® XT Series What’s New | 62
Length of AES Key:
o 128, 256 bits*: (default) Both AES 128 and 256 bits Key Lengths are supported.
o 256 bits: only 256 bits AES keys are supported
o 128 bits: only 128 bits AES keys are supported
Minimum Key Size for DH:
o Very High Security: 2048 bits and upper key sizes are accepted.
o High Security*: (default) 1024 bits and upper key sizes are accepted.
SIP Proprietary Encryption: Yes*/No. When disabled, SIP calls with XT Series terminals where
TLS is not supported or enabled will not be encrypted. It is suggested to upgrade XT Series
systems and to enable TLS in SIP to guarantee maximum security.
Audio Alert: Yes*/No. When audio alerts are disabled, participant in a meeting are no longer
alerted with an audio message about the encryption status of the call or of the meeting.
Figure 43: Additional Encryption Preferences
Important
When SIP Proprietary encryption is enabled, SDP "K=Key" field is used; this may
cause IOT issues with some third-party devices. It is suggested to disable SIP
Proprietary encryption in this case.
In this version, information about the Encryption algorithm used in a call is displayed in the Statistic
page (Local GUI and Web) and in the call detail record.
Figure 44: Encryption info in Local and Web Interface
SIP Enhancements
Full support of Avaya Session Border Controller for Enterprise (SIPERA SBCE) for
Firewall/NAT traversal.
Proprietary Sip Encryption (See Encryption Preferences)
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