AudioCodes Mediant 4000 SBC, Руководство пользователя

Страница: 517 / 1037

CHAPTER 21 SIP Message Manipulation
Mediant 4000 SBC | User's Manual
Parameter Description
[MessageManipulations_
ActionValue] ■ 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.
Configuring Message Condition Rules
The Message Conditions table lets you configure up to 500 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 Configuring Classification Rules )
■ IP-to-IP routing rules in the IP-to-IP Routing table (see Configuring SBC IP-to-IP Routing
Rules )
■ Outbound Manipulation rules in the Outbound Manipulations table (see Configuring IP-to-IP
Outbound Manipulations )
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
Configuring SIP
Message Manipulation ). You can configure simple Message Condition rules, for example,
"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:
- 484 -