AudioCodes Mediant 800B User Manual page 565

User's Manual
3. Classification Stage 3 - Classification Table: If classification based on Proxy Set
fails (or disabled), the device uses the Classification table to classify the SIP dialog to
an IP Group. If it locates a Classification rule whose characteristics (such as source IP
address) match the incoming SIP dialog, the SIP dialog is assigned to the associated
IP Group. In addition, if the Classification rule is defined as a whitelist, the SIP dialog
is allowed and proceeds with the manipulation, routing and other SBC processes. If
the Classification rule is defined as a blacklist, the SIP dialog is denied.
If the classification process fails, the device rejects or allows the call, depending on the
setting of the 'Unclassified Calls' parameter (on the General Settings page - Configuration
tab > VoIP menu > SBC > General Settings). If this parameter is set to Allow, the
incoming SIP dialog is assigned to an IP Group as follows:
1. The device checks on which SIP listening port (e.g., 5061) the incoming SIP dialog
request arrived and the SIP Interface which is configured with this port (in the SIP
Interface table).
2. The device checks the SRD that is associated with this SIP Interface (in the SIP
Interface table) and then classifies the SIP dialog with the first IP Group that is
associated with this SRD. For example, if IP Groups 3 and 4 use the same SRD, the
device classifies the call to IP Group 3.
Note:
unclassified calls, the device can send a specific SIP response code per SIP
interface. This is configured by the 'Classification Failure Response Type' parameter
in the SIP Interface table (see ''Configuring SIP Interfaces'' on page 274).
Version 6.8
If classification for a SIP request fails and the device is configured to reject
565 Mediant 800B Gateway and E-SBC
29. SBC Configuration