How to use Response Header Definition?

In the Deploy Patterns, if a variable has the prefix "_" then it is treated as a SIP header which should be inserted in a response packet.

Note:
The Response Header Definition doesn't affect a SIP response which happens in mid-session.
The Response Header Definition doesn't allow to set "Server" and "User-Agent" headers.

Sample-1: insert "Supported" header into the initial INVITE's response.
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[Matching Patterns:]
$request = ^INVITE

[Deploy Patterns:]
_Supported = timer
$continue = true
----------------------------
Sample-2: insert "Retry-After" header in the response "504 Server Time out".
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[Matching Patterns:]
$request = ^INVITE

[Deploy Patterns:]
_Retry-After = 300
$action = 504
----------------------------
Sample-3: insert "Organization" header in the REGISTER's response
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[Matching Patterns:]
$request = ^REGISTER

[Deploy Patterns:]
_Organization = Brekeke
$action = register
----------------------------

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How to use Response Header Definition?

How to use Response Header Definition?