AudioCodes Mediant 3000, Руководство пользователя

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Version 6.6 445 Mediant 3000
User's Manual 29. SBC Configuration
1. In the Classification table, add the following classification rules:
Index
Source Username
Prefix
Destination
Username Prefix
Destination Host Source IP Group ID
0 333 - - 1
1 1111 2000 10.10.10.10 2
2. In the IP Group table, add the following IP Groups:
Index Source URI Input Destination URI Input
1 - -
2 P-Called-Party-ID Route
In this example, a match exists only for Classification Rule #1. This is because the source
(1111) and destination (2000) username prefixes match those in the INVITE's P-Called-
Party-ID header (i..e., "<sip:1111@10.33.38.1>") and Route header (i.e.,
"<sip:2000@10.10.10.10.10>"), respectively. These SIP headers were determined in IP
Group ID 2.
29.4.2 Configuring Condition Rules
Condition rules define special conditions for the incoming SIP messages. Condition rules
are configured using the same syntax as that used for message conditions in the Message
Manipulations table (see Configuring SIP Message Manipulation on page 250).
Condition rules are used if assigned to any of the following:

Classification rules in the Classification table (see Configuring Classification Rules on
page
440 ). This enables you to use SIP message conditions as additional matching
criteria for classifying incoming SIP dialogs to IP Groups, thereby increasing the
strictness of the classification process.

IP-to-IP routing rules in the IP-to-IP Routing table (see Configuring SBC IP-to-IP
Routing on page 446): This enables you to use SIP message conditions as additional
matching criteria for selecting the routing rule.
You can define simple Condition rules, for example, "header.to.host contains company" or
complex rules using the "AND" or "OR" Boolean operands. You can also use regular
expressions (regex), for example:

"body.sdp regex pcmu" can be used to enable routing based on the offered codec
(G.711 Mu) in the incoming SDP message.

"body.sdp regex (AVP [0- 9||\s]*\s8 [\s ||\n])" can be used to enable routing based on
payload type 8 in the incoming SDP message.
Notes:
•
For a detailed description of the syntax for configuring SIP message
manipulation rules, refer to
SIP Message Manipulations Quick Reference
Guide .
•
The Condition table can also be configured using the table ini file
parameter, ConditionTable.