Version 6.6 637 October 2014
Installation & Operation Manual 40. General SIP Configuration
Time Band Parameters
Parameter
Name
Type
Provisioning
Type
Description
Minute Cost Integer
0-65533
Instant Defines the call cost per minute charge
during this timeband.
40.14 SIP Message Policy Table
This feature provides support for defining SIP message policies for blocking (blacklist)
unwanted incoming SIP messages and allowing (whitelist) receipt of desired
messages. This feature allows you to define legal and illegal characteristics of a SIP
message. The message policy can apply globally (default) or per signaling domain
(i.e., assigned to a SIP interface in the SIP Interface table).
This feature is helpful against VoIP fuzzing (also known as robustness testing), which
sends different types of packets to its "victims" for finding bugs and vulnerabilities. For
example, the attacker might try sending a SIP message containing either an oversized
parameter or too many occurrences of a parameter.
Perform the following steps to configure the SIP Message Policy:
1. Configuring Message Policy Rule
2. Assign Message Policy Rule to SIP Interface
40.14.1 Configuring the SIP Message Policy Table
This section describes how to configure the SIP Message Policy table.
To configure the SIP Message Policy Table:
1. Click
to access the Media Gateway status screen.
2. Select the desired SIP board.
3. In the Navigation Pane, select SIP
SIP General SIP Message Policy; the
SIP Message Policy list is displayed.
4. Use the
or buttons to add or remove entries.
5. Select a specific row and in the Configuration pane, click SIP Message Policy
Settings Frame; the SIP Message Policy Settings screen is displayed.
6. Configure SIP Message Policy parameters according to the table 'SIP Message
Policy Parameters' below.
7. Click the Maintenance icon
and select Unlock to activate the configuration.
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