Version 7.0 899 Mediant 3000
User's Manual 58. Configuration Parameters Reference
Parameter Description
a=rtpmap:120 NoAudio/8000\r\n
Note: For incoming SDP offers, NoAudio is always supported.
SIP Transport Type
[SIPTransportType]
Determines the default transport layer for outgoing SIP calls initiated by
the device.
ï‚§ [0] UDP (default)
ï‚§ [1] TCP
ï‚§ [2] TLS (SIPS)
Notes:
ï‚§ It's recommended to use TLS for communication with a SIP Proxy
and not for direct device-to-device communication.
ï‚§ For received calls (i.e., incoming), the device accepts all these
protocols.
ï‚§
The value of the parameter is also used by the SAS application as the
default transport layer for outgoing SIP calls.
Display Default SIP Port
[DisplayDefaultSIPPort]
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-
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=f25419a9
6a;epid=009FAB8F3E
ï‚§ [0] Disable (default)
ï‚§ [1] Enable
Enable SIPS
[EnableSIPS]
Enables secured SIP (SIPS URI) connections over multiple hops.
ï‚§ [0] Disable (default)
ï‚§ [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.
Enable TCP Connection
Reuse
[EnableTCPConnectionRe
use]
Enables the reuse of the same TCP connection for all calls to the same
destination.
ï‚§ [0] Disable = Uses a separate TCP connection for each call.
ï‚§ [1] Enable = (Default) Uses the same TCP connection for all calls.
Notes:
ï‚§ The parameter must be left at its default value (and not set to 0).
ï‚§ For the SAS application, this feature is configured using the
SASConnectionReuse parameter.
Fake TCP alias 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