In this section:
A SIP Filter profile is a collection of configurable filter settings for supported SIP headers. Depending on the filter setting for a header, the SBC either relays the SIP messages without parsing the header or parses the header.
For every SIP message associated with the ingress leg of the call, the SBC checks the filter setting for each known type of SIP header. If the filter setting for the header is set to Disabled (default), the header is parsed by the SBC. If a parsing error occurs, the SBC terminates a call. However, if the filter setting for a known header is set to Enabled, the SBC does not parses the header, even if parsing for the header is supported by the SBC. Additionally, all known filtered headers and unknown headers can be transparently relayed without parsing, if the unknown header transparency is Enabled in IP signaling profile.
A SIP Filter profile is not used for the egress leg of a call. The SIP header of the egress leg is populated on the basis of the configuration in the IP Signaling profile and the Transparency profile. For more information on Transparency Profile and SIP header transparency, refer to Transparency Profile and SBC SIP Transparency Implementation Guide respectively.
On the SBC main screen, navigate to All > Profiles > Signaling > SIP Filter Profile
The SIP Filter Profile window opens.
Figure 1: SIP Filter Profile window
To Create a New SIP Filter Profile
To create a new SIP Filter Profile, first create and name the object on this window. After creating and saving the object, you must go to the SIP Filter Profile - Header window to specify the SIP header filter settings within the profile.
Click New SIP Filter Profile. The Create New SIP Filter Profile window opens.
To delete a SIP Filter profile: