User's Manual

Parameter AES_CM_128_HMAC_
SHA1_80
AES_CM_128_HMAC_SHA1_32
SRTP
lifetime
2^48 packets 2^48 packets
SRTCP
lifetime
2^31 packets 2^31 packets
Cipher AES Counter Mode AES Counter Mode
Encryption
key
128 bits 128 bits
MAC HMAC-SHA1 HMAC-SHA1
SRTP
auth. tag
80 bits 32 bits
SRTCP
auth. tag
80 bits 80 bits
SRTP
auth. key
len.
160 bits 160 bits
SRTCP
auth. key
len.
160 bits 160 bits
Call security is identified by the presence of the security icon present during an active call, as
shown in the following example.
The presence of the security icon is the only visible indication that the media path is encrypted.
The presence of this icon depends on whether the IP Deskphone has been configured to
support SRTP or not and is visible when the IP Deskphone is not in the idle screen.
Security
238 SIP Software for Avaya 1100 Series IP Deskphones-Administration November 2012
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