AudioCodes Mediant 800B User Manual page 1044

Parameter
[EnableTCPConnectionReu
se]
Fake TCP alias
configure voip > sip-
definition settings > fake-
tcp-alias
[FakeTCPalias]
Reliable Connection
Persistent Mode
configure voip > sip-
definition settings > reliable-
conn-persistent
[ReliableConnectionPersiste
ntMode]
TCP Timeout
configure voip > sip-
definition settings > tcp-
timeout
[SIPTCPTimeout]
SIP Destination Port
configure voip > sip-
definition settings > sip-dst-
port
[SIPDestinationPort]
User's Manual
the same secured connection. One of the benefits of enabling the
parameter is that it may improve performance by eliminating the need
for additional TCP/TLS handshakes with the UA, allowing sessions to
be established rapidly.

[0] Disable = The device uses a new TCP or TLS connection with
the UA.

[1] Enable = (Default) The device uses the same TCP or TLS
connection for all SIP requests with the UA.
Note:

For SIP responses, the device always uses the same TCP/TLS
connection, regardless of the parameter settings.
Enables the re-use of the same TCP/TLS connection for sessions with
the same user, even if the "alias" parameter is not present in the SIP
Via header of the first INVITE.

[0] Disable = (Default) TCP/TLS connection reuse is done only if
the "alias" parameter is present in the Via header of the first
INVITE.

[1] Enable
Note: To enable TCP/TLS connection re-use, set the
EnableTCPConnectionReuse parameter to 1.
Enables setting of all TCP/TLS connections as persistent and
therefore, not released.

[0] = (Default) Disable. All TCP connections (except those that are
set to a proxy IP) are released if not used by any SIP
dialog\transaction.

[1] = Enable - TCP connections to all destinations are persistent
and not released unless the device reaches 70% of its maximum
TCP resources.
While trying to send a SIP message connection, reuse policy
determines whether live connections to the specific destination are re-
used.
Persistent TCP connection ensures less network traffic due to fewer
setting up and tearing down of TCP connections and reduced latency
on subsequent requests due to avoidance of initial TCP handshake.
For TLS, persistent connection may reduce the number of costly TLS
handshakes to establish security associations, in addition to the initial
TCP connection set up.
Note: If the destination is a Proxy server, the TCP/TLS connection is
persistent regardless of the settings of the parameter.
Defines the Timer B (INVITE transaction timeout timer) and Timer F
(non-INVITE transaction timeout timer), as defined in RFC 3261, when
the SIP transport type is TCP.
The valid range is 0 to 40 sec. The default is 64 * SipT1Rtx parameter
value. For example, if SipT1Rtx is set to 500 msec, then the default of
SIPTCPTimeout is 32 sec.
Defines the SIP destination port for sending initial SIP requests.
The valid range is 1 to 65534. The default port is 5060.
Note: SIP responses are sent to the port specified in the Via header.
1044
Mediant 800B Gateway & E-SBC
Description
Document #: LTRT-10298