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AudioCodes E-SBC

AudioCodes E-SBC
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CHAPTER18 Core Entities
Mediant 1000 Gateway & E-SBC | User's Manual
Parameter Description
'Always Use Src Address'
always-use-source-addr
[IPGroup_AlwaysUseSourceAddr]
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.
SBC Advanced
'Source URI Input'
src-uri-input
[IPGroup_SourceUriInput]
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
[9] P-Called-Party-ID
[10] Contact
[11] Referred-by
Note:
The parameter is applicable only when classification
is done according to the Classification table.
If the configured SIP header does not exist in the
incoming INVITE message, the classification of the
message to a source IP Group fails.
If the device receives an INVITE as a result of a
REFER request or a 3xx response, then the
incoming INVITE is routed according to the Request-
URI. The device identifies such INVITEs according
to a specific prefix in the Request-URI header,
configured by the SBCXferPrefix parameter.
Therefore, in this scenario, the device ignores the
parameter setting.
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