Srtp - Avaya 1230 Administration

Security
Parameter Description
name
Keep-alive This is a value, measured in seconds,
that the IP Deskphone uses when a
connection to the server is
established using TCP or TLS. The IP
Deskphone periodically sends a
packet to the server, which contains a
pair of CRLF, to ensure the server is
responding.
Register Retry When a connection failure occurs, this
value in seconds is how long the IP
Deskphone waits before attempting to
reregister with the proxy.
Register Max After a failure to reconnect with the
Retry proxy, the IP Deskphone increases
the amount of time that it waits for the
next registration retry attempt. This
value, measured in seconds, is the
maximum value that the IP
Deskphone waits in between retry
attempts

SRTP

Secure Real-time Transport Protocol (SRTP) encrypts the Real-time Transport Protocol (RTP) traffic
between two end-points to achieve full security for the media path.
Security Descriptions for the Session Description Protocol (SDESC) (RFC4586) defines a
mechanism to transmit the necessary cryptographic parameters between two end-points. SRTP is
initiated when Secure Real-time Transport Control Protocol (SRTCP) allows both sides of a
conversation to agree on the keys you can use to encrypt or decrypt the messages that are
transmitted.
Media security — SRTP
Secure RTP (SRTP) encrypts the media path between two end-points. After both end-points agree
on the necessary parameters to encrypt and decrypt audio packets, the voice path between them is
established.
SRTP is configured on the IP Deskphone to provide multiple levels of protection.
The following table highlights the two cipher suites that are used and their related parameters.
SIP Software for Avaya 1200 Series IP Deskphones-Administration
294
Default value
30
30
1800
Comments? infodev@avaya.com
Boundaries
Min: 5
Max: 1800
Min: 30
Max: 1800
Min: 600
Max: 1800
March 2015