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Back to Service Profiles - Transparency Profile

In this section:

 

IMPORTANT

The Transparency Profile is the recommended method of configuring transparency on the SBC Core for new deployments as well as when applying additional transparency configurations to existing deployments. Do not use IP Signaling Profile flags in these scenarios because the flags will be retired in upcoming releases.

Refer to the SBC SIP Transparency Implementation Guide for additional information.

Specifies the name of SIP header to transparently pass.

The flexible header transparency profile supported in earlier release, where transparency for a random header is achieved by adding its name to the profile. The functionality was limited to initial INVITE request, REGISTER request, and mid-dialog requests in an INVITE initiated dialog (excluding a mid-dialog SUBSCRIBE as it is not supported). Selective unknown headers can be passed transparently in REGISTER, initial INVITE, and in mid-dialog requests in an INVITE initiated dialog. Header transparency was not supported for out-of-dialog messages in earlier SBC release.

SBC is now enhanced:

  • To enable transparency for "all" the headers.
  • To selectively ignore transparency of headers (useful with "all" transparency).
  • To exclude the methods for which transparency of headers is not needed.
Note

The transparency profile is associated with the egress trunk group. The header transparency is based on the headers that are present in the transparency profile of the egress trunk group for requests and headers that are present in the ingress trunk group for responses.

Note

PRACK messages and responses to PRACK messages are not sent end-to-end through SBC. Therefore, SBC does not support transparency of message-bodies or headers in these messages. ACK messages are not normally sent end-to-end through SBC. Transparency of ACK messages is not supported even if the endToEndAck flag is enabled in the "IP Signaling Profile". In late media scenarios, the SBC does not support transparency of headers and bodies. Transparency for headers and bodies is not supported for methods such as CANCEL and methods that are "hop-by-hop".

Note

Headers may be configured in compact form and transparently passed using a Transparency Profile. It is advisable to configure both compact and long formats to ensure both types of received headers in the PDU are transparently passed.

To View Sip Header

On SBC main screen, go to Configuration > Profile Management > Category: Service Profiles > Transparency Profile > Sip Header.

Select the desired Transparency Profile from the drop-down list to view/edit the Sip Header parameters.

Configuration - Profile Management - Transparency Profile - Sip Header Main Field

The Sip Header window is displayed.

Profile Management - Service Profiles - Sip Header

To Edit Sip Header

To edit any of the Sip Header in the list, click the radio button next to the specific Sip Header name.

Profile Management - Service Profiles - Sip Header Highlighted

The Edit Selected Sip Header window is displayed below.

Profile Management - Service Profiles - Sip Header Edit Window

Make the required changes and click Save at the right hand bottom of the panel to save the changes made.

To Create Sip Header

To create a new Sip Header, click New Sip Header tab on the Sip Header List panel.

Profile Management - Service Profiles - Sip Header Fields

The Create New Sip Header window is displayed.

Profile Management - Service Profiles - Sip Header Create Window

The following fields are displayed:

Note

If a specific header is configured, Ignore Transparency and Excluded Methods are exclusive. If Ignore Transparency is configured, Excluded Methods is not displayed later. If Excluded Methods is configured, Ignore Transparency is not displayed.

Note

The Ignore Transparency configurable applies in the following cases:

  • when combined with a configuration to allow "all" SIP headers
    -or-
  • when one of the transparency flags for SIP header in the IP Signaling Profile is enabled

Transparency Profile - Sip Header Parameters

Parameter

Description

Header Name 

Specifies the Header name of this SIP Transparency Profile. The value ranges up to 31 characters.

Excluded Methods

Specifies the method(s) for which the transparency of the SIP header is not applicable. Options are:

  • bye
  • info
  • invite
  • message
  • notify
  • options
  • publish
  • refer
  • register
  • subscribe
  • update
 Ignore Transparency

If Yes, this parameter excludes the transparency of the SIP header. Options are:

  • no (default)
  • yes

To Copy Sip Header

To copy any of the created Sip Header and to make any minor changes, click the radio button next to the specific Sip Header to highlight the row.

Profile Management - Service Profiles - Sip Header Highlighted

Click Copy Sip Header tab on the Sip Header List panel.

Profile Management - Service Profiles - Sip Header Fields

The Copy Selected Sip Header window is displayed along with the field details which can be edited.

Profile Management - Service Profiles - Sip Header Copy Window

Make the required changes to the required fields and click Save to save the changes. The copied Sip Header is displayed at the bottom of the original Sip Header in the Sip Header List panel.

To Delete Sip Header

To delete any of the created Sip Header, click the radio button next to the specific Sip Header which you want to delete.

Profile Management - Service Profiles - Sip Header Highlighted

Click Delete at the end of the highlighted row. A delete confirmation message appears seeking your decision.

Profile Management - Service Profiles - Sip Header Delete Confirmation

Click OK to remove the specific Sip Header from the list.

 

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