/*
* TeleStax, Open Source Cloud Communications Copyright 2012.
* and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.mobicents.protocols.ss7.cap.api.service.circuitSwitchedCall;
/**
*
<code>
<p>
The activity test (AT) is used for testing the CAMEL dialogue between the gsmSCF and the gsmSSF. The SCP may send CAP AT at
regular intervals to the gsmSSF, e.g. every 15 min. The only function of CAP AT is to verify the existence of the CAMEL
dialogue. When the gsmSSF receives CAP AT, it returns an empty RESULT to the gsmSCF. If the gsmSCF does not receive an
operation RESULT within the operation time for CAP AT, e.g. 5 s, then the gsmSCF terminates the CAMEL service. CAP AT is
normally sent by the SCP platform, not by the CAMEL service. The arrival of CAP AT in the gsmSSF has no impact on any call
handling process or on the BCSM. The sending of CAP AT is not dependent on the phase of the call or on the gsmSSF FSM state.
</p>
activityTest OPERATION ::= {
RETURN RESULT TRUE
CODE opcode-activityTest
}
-- Direction: gsmSCF -> gsmSSF, Timer: T at
-- This operation is used to check for the continued existence of a relationship
-- between the gsmSCF and gsmSSF, assist gsmSSF or gsmSRF. If the relationship is
-- still in existence, then the gsmSSF will respond. If no reply is received,
-- then the gsmSCF will assume that the gsmSSF, assist gsmSSF or gsmSRF has failed
-- in some way.
</code>
*
*
* @author sergey vetyutnev
*
*/
public interface ActivityTestRequest extends CircuitSwitchedCallMessage {
}