Version 6.8 551 Mediant 2600 E-SBC
User's Manual 43. Configuration Parameters Reference
Parameter Description
Web: Bronze QoS
EMS: Bronze Service Class Diff
Serv
CLI: bronze-qos
[BronzeServiceClassDiffServ]
Defines the DiffServ value for the Bronze CoS content (OAMP
applications).
The valid range is 0 to 63. The default is 10.
43.2.5 NAT Parameters
The Network Address Translation (NAT) parameters are described in the table below.
Table 43-13: NAT Parameters
Parameter Description
Web/EMS: NAT Mode
CLI: disable-NAT-traversal
[NATMode]
Enables the NAT feature for media when the device communicates
with UAs located behind NAT.
 [0] Auto-Detect = NAT is performed only if necessary. If the UA
is identified as being located behind NAT, the device sends the
media packets to the public IP address:port obtained from the
source address of the first media packet received from the UA.
Otherwise, the packets are sent using the IP address:port
obtained from the address in the first received SIP message.
Note also that if the SIP session is established (ACK) and the
device (not the UA) sends the first packet, it sends it to the
address obtained from the SIP message and only after the
device receives the first packet from the UA, does it determine
whether the UA is behind NAT.
 [1] NAT Is Not Used = (Default) NAT feature is disabled. The
device always sends the media packets to the remote UA using
the IP address:port obtained from the first received SIP
message.
 [2] NAT Is Used = NAT is always performed. The device always
sends the media packets to the remote UA using the source
address obtained from the first media packet from the UA. In
this mode, the device does not send any packets until it
receives the first packet from the UA (in order to obtain the IP
address).
For more information on handling calls from UAs behind NAT, see
''First Incoming Packet Mechanism'' on page 133.
Web: NAT IP Address
EMS: Static NAT IP Address
CLI: nat-ip-addr
[StaticNatIP]
Defines the global (public) IP address of the device to enable static
NAT between the device and the Internet.
Note: For this parameter to take effect, a device reset is required.
Web: SIP NAT Detection
CLI: configure voip/sip-definition
advanced-settings/sip-nat-
detect
[SIPNatDetection]
Enables the device to detect whether the incoming INVITE
message is sent from an endpoint located behind NAT.
 [0] Disable = Disables the device's NAT Detection mechanism.
Incoming SIP messages are processed as received from
endpoints that are not located behind NAT and sent according
to the SIP standard.
 [1] Enable (default) = Enables the device's NAT Detection
mechanism.
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