AudioCodes Mediant 4000 SBC User Manual page 866

Parameter
definition settings >
display-default-sip-port
[DisplayDefaultSIPPort]
Enable SIPS
configure voip > sip-
definition settings >
enable-sips
[EnableSIPS]
TCP/TLS Connection
Reuse
tcp-conn-reuse
[EnableTCPConnection
Reuse]
Fake TCP alias
configure voip > sip-
definition settings >
fake-tcp-alias
[FakeTCPalias]
Reliable Connection
Persistent Mode
configure voip > sip-
definition settings >
reliable-conn-persistent
[ReliableConnectionPer
sistentMode]
User's Manual
the following SIP headers: Request-Uri, To, From, P-Asserted-Identity, P-
Preferred-Identity, and P-Called-Party-ID. If the message is received with
a port number other than the default, for example, 5070, the port number
is not changed.
An example of a SIP From header with the default port is shown below:
From:
<sip:+4000@10.8.4.105:5060;user=phone>;tag=f25419a96
a;epid=009FAB8F3E

[0] Disable (default)

[1] Enable
Enables secured SIP (SIPS URI) connections over multiple hops.

[0] Disable (default)

[1] Enable
When the SIPTransportType parameter is set to 2 (i.e., TLS) and the
parameter EnableSIPS is disabled, TLS is used for the next network hop
only. When the parameter SIPTransportType is set to 2 or 1 (i.e., TCP or
TLS) and EnableSIPS is enabled, TLS is used through the entire
connection (over multiple hops).
Note: If the parameter is enabled and the parameter SIPTransportType is
set to 0 (i.e., UDP), the connection fails.
Enables the reuse of an established TCP or TLS connection between the
device and a SIP user agent (UA) for subsequent SIP requests sent to the
UA. Any new out-of-dialog requests (e.g., INVITE or REGISTER) use 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.
866
Description
Document #: LTRT-40203
Mediant 4000 SBC