Nat And Stun Parameters - AudioCodes Mediant 800B MSBR User Manual

Parameter
[PremiumServiceClassMediaDiffServ]
Web: Control Premium QoS
EMS: Premium Service Class Control Diff
Serv
CLI: control-qos
[PremiumServiceClassControlDiffServ]
Web: Gold QoS
EMS: Gold Service Class Diff Serv
CLI: gold-qos
[GoldServiceClassDiffServ]
Web: Bronze QoS
EMS: Bronze Service Class Diff Serv
CLI: bronze-qos
[BronzeServiceClassDiffServ]

67.2.5 NAT and STUN Parameters

The Network Address Translation (NAT) parameters are described in the table below.
Parameter
NAT Parameters
Web/EMS: NAT Mode
CLI: disable-NAT-traversal
[NATMode]
User's Manual
parameter and for configuring this functionality in the IP
Profile table, see ''Configuring IP Profiles'' on page 314.
Note: If this functionality is configured for a specific IP
Profile, the settings of this global parameter is ignored for
calls associated with the IP Profile.
Global parameter that defines the DiffServ value for
Premium Control CoS content (Call Control applications).
You can also configure this functionality per specific calls,
using IP Profiles (IpProfile_SigIPDiffServ). For a detailed
description of this parameter and for configuring this
functionality in the IP Profile table, see ''Configuring IP
Profiles'' on page 314.
Note: If this functionality is configured for a specific IP
Profile, the settings of this global parameter is ignored for
calls associated with the IP Profile.
Defines the DiffServ value for the Gold CoS content
(Streaming applications).
The valid range is 0 to 63. The default is 26.
Defines the DiffServ value for the Bronze CoS content
(OAMP applications).
The valid range is 0 to 63. The default is 10.
Table 67-14: NAT Parameters
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).
780
Mediant 800B MSBR
Description
Description
Document #: LTRT-12813