AudioCodes Mediant 4000 SBC, User Manual

Page: 964 / 1037

CHAPTER 60 Configuration Parameters Reference
Mediant 4000 SBC | User's Manual
Parameter Description
'Display Default SIP
Port'
configure voip >
sip-definition
settings >
display-default-
sip-port
[DisplayDefaultSIPPor
t]
Enables the device to add the default SIP port 5060 (UDP/TCP) or
5061 (TLS) to outgoing messages that are received without a port.
This condition also applies to manipulated messages where the
resulting message has no port number. The device adds the default
port number to 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=f25419a96a;epid=009FAB8F3E
■ [0] Disable (default)
■ [1] Enable
'SIPS'
configure voip >
sip-definition
settings >
enable-sips
[EnableSIPS]
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.
'TCP/TLS Connection
Reuse'
tcp-conn-reuse
[EnableTCPConnectio
nReuse]
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.
'Fake TCP alias'
configure voip >
sip-definition
settings > fake-
tcp-alias
[FakeTCPalias]
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
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