AudioCodes Mediant 500L - Page 370

User's Manual 370 Document #: LTRT-10532
Mediant 500L Gateway & E-SBC
Parameter Description
[IPGroup_ContactName
]
host name. The device uses this string for Via and Contact headers in
outgoing INVITE messages sent to a specific IP Group, and the Contact
header in SIP 18x and 200 OK responses for incoming INVITE messages
received from a specific IP Group. The IP-to-Tel Routing table can be used
to identify the source IP Group from where the INVITE message was
received.
If the parameter is not configured, these headers are populated with the
device's dotted-decimal IP address of the network interface on which the
message is sent.
By default, no value is defined.
Note: To ensure proper device handling, the parameter should be a valid
FQDN.
UUI Format
uui-format
[IPGroup_UUIFormat]
Enables the generation of the Avaya UCID value, adding it to the outgoing
INVITE sent to this IP Group.
 [0] Disabled (default)
 [1] Enabled
This provides support for interworking with Avaya equipment by generating
Avaya's UCID value in outgoing INVITE messages sent to Avaya's
network. The device adds the UCID in the User-to-User SIP header.
Avaya's UCID value has the following format (in hexadecimal): 00 + FA +
08 + node ID (2 bytes) + sequence number (2 bytes) + timestamp (4 bytes)
This is interworked in to the SIP header as follows:
User-to-User: 00FA080019001038F725B3;encoding=hex
Note: To define the Network Node Identifier of the device for Avaya UCID,
use the 'Network Node ID' (NetworkNodeId) parameter.
Always Use Src
Address
always-use-source-addr
[IPGroup_AlwaysUseSo
urceAddr]
Enables the device to always send SIP requests and responses, within a
SIP dialog, to the source IP address received in the previous SIP message
packet. This feature is especially useful in scenarios where the IP Group
endpoints are located behind a NAT firewall (and the device is unable to
identify this using its regular NAT mechanism).
 [0] No = (Default) The device sends SIP requests according to the
settings of the global parameter, SIPNatDetection.
 [1] Yes = The device sends SIP requests and responses to the source
IP address received in the previous SIP message packet.
For more information on NAT traversal, see ''Remote UA behind NAT'' on
page 158.
SBC Advanced
Source URI Input
src-uri-input
[IPGroup_SourceUriInp
ut]
Defines the SIP header in the incoming INVITE that is used for call
matching characteristics based on source URIs.
 [-1] Not Configured (default)
 [0] From
 [1] To
 [2] Request-URI
 [3] P-Asserted - First Header
 [4] P-Asserted - Second Header
 [5] P-Preferred
 [6] Route
 [7] Diversion
 [8] P-Associated-URI