Unsupported

An example of the header is shown below:

Unsupported: 100rel

The header properties are shown in the following table:

Header Level Action

Add

Delete

Modify

List Entries

Operations Supported

Yes

Yes

Yes

N/A

Keyword

Sub Types

Attributes

Capabilities

SIPCapabilities Struct

Read/Write

Below are header manipulation examples:

Example 1

Rule:

Add an Unsupported header to the message:

Message Type: Invite.response
Action Subject: header.unsupported
Action Type: Add
Action Value: 'early-session, myUnsupportedHeader'

Result:

Unsupported: early-session

Example 2

Rule:

Modify the Unsupported header to 'replaces':

Message Type: Invite
Action Subject: header.unsupported
Action Type: Modify
Action Value: 'replaces'

Result:

Unsupported: replaces

Example 3

Rule:

Set the path in the Unsupported headers options tag:

Message Type: Invite
Action Subject: header.unsupported.capabilities.path
Action Type: Add
Action Value: '1'

Result:

Unsupported: replaces, path