I am setting up a queue and I have ring all set with everything else sent to default pretty much. What I am trying to accomplish is that agents have phone that show 4 lines for their extension. If they are on the phone with an outbound call I want to skip trying to send them a call. How is this accomplished where the callcenter mod knows to not send a call to them. All agents are static assigned in the callcenter config file.

Copy of config file below.

<configuration name="callcenter.conf" description="CallCenter">

  <settings>

  </settings>

<queues>

    <queue name="sales@default">

      <param name="strategy" value="ring-all"/>

      <param name="moh-sound" value="$${hold_music}"/>

      <param name="time-base-score" value="queue"/>

      <param name="tier-rules-apply" value="false"/>

      <param name="tier-rule-wait-second" value="300"/>

      <param name="tier-rule-wait-multiply-level" value="true"/>

      <param name="tier-rule-no-agent-no-wait" value="false"/>

      <param name="discard-abandoned-after" value="14400"/>

      <param name="max-wait-time" value="0"/>

      <param name="max-wait-time-with-no-agent" value="120"/>

    </queue>

    <queue name="collection@default">

      <param name="strategy" value="ring-all"/>

      <param name="moh-sound" value="$${hold_music}"/>

      <param name="time-base-score" value="system"/>

      <param name="tier-rules-apply" value="false"/>

      <param name="tier-rule-wait-second" value="300"/>

      <param name="tier-rule-wait-multiply-level" value="true"/>

      <param name="tier-rule-no-agent-no-wait" value="false"/>

      <param name="discard-abandoned-after" value="60"/>

      <param name="abandoned-resume-allowed" value="false"/>

      <param name="max-wait-time" value="0"/>

      <param name="max-wait-time-with-no-agent" value="120"/>

    </queue>

  </queues>

  <agents>

    <agent name="513@default" type="callback" contact="[call_timeout=10]user/513@192.168.1.3" status="Available" max-no-answer="3" wrap-up time="10" reject-delay-time="10" busy-delay-time="60" />

 </agents>

<tiers>

    <tier agent="513@default" queue="sales@default" level="1" position="1"/>

    <tier agent="513@default" queue="collection@default" level="1" position="1"/>

</tiers>

</configuration>