SIP User's Manual 600 Document #: LTRT-83310
Mediant 600 & Mediant 1000
Parameter Description
This feature can be used only if the remote party supports T.38 fax
relay; otherwise, the fax fails.
Web: SIP Transport Type
EMS: Transport Type
[SIPTransportType]
Determines the default transport layer for outgoing SIP calls initiated
by the device.
[0] UDP (default)
[1] TCP
[2] TLS (SIPS)
Notes:
It's recommended to use TLS for communication with a SIP Proxy
and not for direct device-to-device communication.
For received calls (i.e., incoming), the device accepts all these
protocols.
The value of this parameter is also used by the SAS application as
the default transport layer for outgoing SIP calls.
The device supports up to 100 simultaneous TLS sessions.
Web: SIP UDP Local Port
EMS: Local SIP Port
[LocalSIPPort]
Defines the local UDP port for SIP messages.
The valid range is 1 to 65534. The default value is 5060.
Web: SIP TCP Local Port
EMS: TCP Local SIP Port
[TCPLocalSIPPort]
Defines the local TCP port for SIP messages.
The valid range is 1 to 65535. The default value is 5060.
Web: SIP TLS Local Port
EMS: TLS Local SIP Port
[TLSLocalSIPPort]
Defines the local TLS port for SIP messages.
The valid range is 1 to 65535. The default value is 5061.
Note: The value of this parameter must be different from the value of
the parameter TCPLocalSIPPort.
Web/EMS: 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 this parameter is enabled and the parameter
SIPTransportType is set to 0 (i.e., UDP), the connection fails.
Web/EMS: Enable TCP
Connection Reuse
[EnableTCPConnectionReu
se]
Enables the reuse of the same TCP connection for all calls to the
same destination.
[0] Disable = Use a separate TCP connection for each call.
[1] Enable = Use the same TCP connection for all calls (default).
Web/EMS: Reliable
Connection Persistent Mode
[ReliableConnectionPersist
entMode]
Enables setting of all TCP/TLS connections as persistent and
therefore, not released.
[0] = Disable (default) - 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-
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