I'm simulating the UAS side with SIPp.  I'm trying to control SIPp with
variables such that when the UAS receives INVITE with a special code in the
"Subject:" header, the header value will trigger a jump to a particular
label.  For example, if UAS receives INVITE with "Subject: 480", jump to a
section which sends SIP 480 message back.  I tried the following but it
doesn't work, even though i'm successfully parsing the Subject: field in
each incoming INVITE.
Right now the result i'm getting is it's not branching and it's always
sending only SIP 480...

Help appreciated.  Thanks!


  <recv request="INVITE">
    <action>
      <gettimeofday assign_to="sec,msec"/>
      <ereg regexp=".*" search_in="hdr" header="Subject: " assign_to="1"/>
      <test assign_to="480" variable="1" compare="equal" value="480"/>
      <test assign_to="486" variable="1" compare="equal" value="486"/>
      <log message=""/>
      <log message="---Testing [$1]---" />
      <log message="[$sec] RCV: INVITE" />
    </action>
  </recv>

  <nop next="send_480" test="480">
    <action>
      <log message="checking for 480, got [$1]"/>
    </action>
  </nop>
  <nop next="send_486" test="486">
    <action>
      <log message="checking for 486, got [$1]"/>
    </action>
  </nop>

  <label id="send_480"/>
  <send next="end">
    <![CDATA[

      SIP/2.0 480 Temporarily Unavailable
      [last_Via:]
      [last_From:]
      [last_To:];tag=[call_number]
      [last_Call-ID:]
      [last_CSeq:]
      Contact: <sip:[local_ip]:[local_port];transport=[transport]>
      Content-Length: [len]

    ]]>
  </send>

  <label id="send_486"/>
  <send next="end">
    <![CDATA[

      SIP/2.0 486 Busy Here
      [last_Via:]
      [last_From:]
      [last_To:];tag=[call_number]
      [last_Call-ID:]
      [last_CSeq:]
      Contact: <sip:[local_ip]:[local_port];transport=[transport]>
      Content-Length: [len]

    ]]>
  </send>

  <label id="end"/>

</scenario>
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