Configuring Message Condition Rules - AudioCodes E-SBC User Manual

CHAPTER 21 SIP Message Manipulation
Parameter
[MessageManipulations_
ActionValue]

Configuring Message Condition Rules

The Message Conditions table lets you configure up to 82 Message Condition rules. A Message
Condition defines special conditions (requisites) for incoming SIP messages. These rules can be
used as additional matching criteria for the following:
■ Classification rules in the Classification table (see
■ IP-to-IP routing rules in the IP-to-IP Routing table (see
Rules)
■ Outbound Manipulation rules in the Outbound Manipulations table (see
Outbound
Message Condition rules are configured using the same syntax as that used for Conditions when
configuring Message Manipulation rules in the Message Manipulations table (see
Message Manipulation
"header.to.host contains company", meaning SIP messages whose To header has a host part
containing the string "company". You can configure complex rules using the "AND" or "OR"
Boolean operands and 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.
For a description on SIP message manipulation syntax, refer to the Syntax for SIP
Message Manipulation Reference Guide.
The following procedure describes how to configure Message Condition rules through the Web
interface. You can also configure it through ini file [ConditionTable] or CLI (configure voip >
sbc routing condition-table).
➢
To configure a Message Condition rule:
1. Open the Message Conditions table (Setup menu > Signaling & Media tab > Message
Manipulation folder > Message Conditions).
2. Click New; the following dialog box appears:
■ string/<message-element>/<call-param> +
■ string/<message-element>/<call-param>
For example:
■ 'itsp.com'
■ header.from.url.user
■ param.call.dst.user
■ param.call.dst.host + '.com'
■ param.call.src.user + '<' + header.from.url.user + '@' +
header.p-asserted-id.url.host + '>'
■ Func.To-Upper(Param.Call.Src.Host)
You can use the built-in syntax editor to help you configure the
field. Click the Editor button located alongside the field to open
the Editor, and then simply follow the on-screen instructions.
Note: Only single quotation marks must be used.
Manipulations)
). You can configure simple Message Condition rules, for example,
Mediant 1000 Gateway & E-SBC | User's Manual
Description
Configuring Classification
Configuring SBC IP-to-IP Routing
- 515 -
Rules)
Configuring IP-to-IP
Configuring SIP