phonesrv_plat/converged_call_provider_api/inc/mccpcall.h
author Pat Downey <patd@symbian.org>
Wed, 01 Sep 2010 12:15:03 +0100
branchRCL_3
changeset 20 987c9837762f
parent 0 ff3b6d0fd310
permissions -rw-r--r--
Revert incorrect RCL_3 drop: Revision: 201033 Kit: 201035
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/*
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  CCP call class, Contains methods common for a call.
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*
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*/
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#ifndef MCCPCALL_H
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#define MCCPCALL_H
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//  INCLUDES
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#include <e32base.h>
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#include <mccpcallobserver.h>
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#include <ccpdefs.h>
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#include <cccpcallparameters.h>
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class MCCPConferenceCall;
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class MCCPConferenceCallObserver;
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class MCCPTransferProvider;
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class MCCPTransferObserver;
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class MCCPForwardProvider;
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class MCCPForwardObserver;
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/**
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* All common methods for different calls.
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* Events, errors, status notifications etc are received via MCCPCallObserver class
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*
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*  @since S60 3.2
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*/
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class MCCPCall
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    {
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protected:
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    /** 
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    * Protected destructor. Object cannot be deleted from plug-in client (CCE).
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    * @since S60 3.2
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    */
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    virtual inline ~MCCPCall() {};
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public:
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    /**
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    * Answer an incoming call. 
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    * Returns any error asyncronous via MCCPCallObserver.
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    * If the request cannot be started then an error will be returned immediately as return value. 
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    * In succesfull case KErrNone will be returned and the requested action has been started.
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    * @param None
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    * @return KErrNone if request was started succesfully. In that case plug-in must return 
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    * MCCPCallObserver::ECCPStateAnswering.
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    * @return KErrNotReady if call is not in ringing or queued state.
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    * @return KErrNotSupported if call does not support queueing. Plug-in will disconnect the call in this case.
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    * @pre Call state is MCCPCallObserver::ECCPStateRinging or MCCPCallObserver::ECCPStateQueued.
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    * @since S60 3.2
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    */
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    virtual TInt Answer() = 0;
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    /**
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    * Reject an incoming call.
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    * If the request cannot be started then an error will be returned immediately as return value. 
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    * In succesfull case KErrNone will be returned and the requested action has been started.
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    * @param none
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    * @return KErrNone if request was started succesfully. 
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    * @return KErrNotReady if call is not in ringing or queued state.
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    * @pre Call state is MCCPCallObserver::ECCPStateRinging or MCCPCallObserver::ECCPStateQueued.
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    * @since S60 3.2
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    */
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    virtual TInt Reject() = 0;
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    /**
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    * Reguests plug-in to queue the call. 
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    * If the request cannot be started then an error will be returned immediately as return value. 
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    * In succesfull case KErrNone will be returned and the requested action has been started.
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    * In case call waiting is temporarily not supported when called returns not ready indication.
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    * @param None
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    * @return KErrNone if request was started succesfully. 
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    * @return KErrNotReady if call is not in ringing state or call waiting is not supported at the moment.
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    * @pre Call state is MCCPCallObserver::ECCPStateIdle.
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    * @post When succesfull, call state is changed to MCCPCallObserver::ECCPStateQueued.
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    * @post If queueing is not supported by the plug-in call is disconnected by the plug-in.
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    * @since S60 3.2
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    */
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    virtual TInt Queue() = 0;
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    /**
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    * Starts dialing to recipient. Recipient was set at call creation.
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    * If the request cannot be started then an error will be returned immediately as return value. 
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    * In succesfull case KErrNone will be returned and the requested action has been started.
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    * @param None
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    * @return KErrNone if request was started succesfully. In this case plug-in must return 
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    * MCCPCallObserver::ECCPStateDialling.
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    * @return KErrNotReady if call is not in idle state.
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    * @return KErrNotSupported If call is not mobile originated.
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    * @pre Call state is MCCPCallObserver::ECCPStateIdle and call type is MO.
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    * @since S60 3.2
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    */
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    virtual TInt Dial() = 0;
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   110
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    /**
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    * Indicate call is ringning.
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   113
    * If the request cannot be started then an error will be returned immediately as return value. 
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    * In succesfull case KErrNone will be returned and the requested action has been started.
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   115
    * Optionally ringing state can be set for MO call too.
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   116
    * @param None
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    * @return KErrNone if request was started succesfully.
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   118
    * @return KErrNotReady if call is not in idle state.
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    * @pre Call state is MCCPCallObserver::ECCPStateIdle.
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    * @since S60 3.2
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    */
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    virtual TInt Ringing() = 0;
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   123
      
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    /**
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    * Ends an ongoing call. 
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   126
    * Does not delete the call. Call is deleted when CConvergedCallProvider::ReleaseCall is called.
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   127
    * If the request cannot be started then an error will be returned immediately as return value. 
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    * In succesfull case KErrNone will be returned and the requested action has been started.
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   129
    * @param None.
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    * @return KErrNone if request was started succesfully.
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    * @return KErrAlreadyExists if call is already in idle state.
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    * @pre Call state is not MCCPCallObserver::ECCPStateIdle.
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    * @since S60 3.2
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    */
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    virtual TInt HangUp() = 0;
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    /**
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   138
    * Called by CCE instead of HangUp when Dial has been called and state change to 
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   139
    * MCCPCallObserver::ECCPStateConnecting has not been received. 
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   140
    * Cancels the last ongoing request. Used for Dial only. Not supported for other actions.
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   141
    * If the request cannot be started then an error will be returned immediately as return value. 
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    * In succesfull case KErrNone will be returned and the requested action has been started.
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   143
    * @param None.
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    * @return KErrNone if request was started succesfully. 
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    * @since S60 3.2
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   146
    * @pre MCCPCall::Dial has been called and call state is MCCPCallObserver::ECCPIdle 
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    */
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    virtual TInt Cancel() = 0;
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    /**
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    * Puts call on hold.
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    * If the request cannot be started then an error will be returned immediately as return value. 
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    * In succesfull case KErrNone will be returned and the requested action has been started.
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    * @param None.
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    * @return KErrNone if request was started succesfully. 
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    * @return KErrNotReady if call is not in connected state.
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    * @return KErrAlreadyExists if call is already held (MCCPCallObserver::ECCPStateHold).
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    * @pre Call state is MCCPCallObserver::ECCPStateConnected or MCCPCallObserver::ECCPStateTransferring.
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   159
    * Transferring state is allowed only if previous state before transferring state was on-hold.
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   160
    * @since S60 3.2
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    */
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    virtual TInt Hold() = 0;
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   163
      
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    /**
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    * Resume previously held call.
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    * If the request cannot be started then an error will be returned immediately as return value. 
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   167
    * In succesfull case KErrNone will be returned and the requested action has been started.
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   168
    * @param None.
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   169
    * @return KErrNone if request was started succesfully.
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    * @return KErrNotReady if call is not in on-hold state.
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   171
    * @return KErrAlreadyExists if call is already in connected state MCCPCallObserver::ECCPStateConnected.
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    * @pre Call state is MCCPCallObserver::ECCPStateHold.
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   173
    * @since S60 3.2
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   174
    */
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   175
    virtual TInt Resume() = 0;
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   176
      
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    /**
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   178
    * Swaps the call between Hold and Resume. 
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   179
    * If the request cannot be started then an error will be returned immediately as return value. 
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    * In succesfull case KErrNone will be returned and the requested action has been started.
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   181
    * @param None.
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   182
    * @return KErrNone if request was started succesfully.
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    * @return KErrNotReady if call is not on in holded or connected state.
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    * @pre Call state is MCCPCallObserver::ECCPStateHold or MCCPCallObserver::ECCPStateConnected.
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    * @since S60 3.2
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   186
    */
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   187
    virtual TInt Swap() = 0;
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   188
      
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   189
    /**
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    * Returns the remote party number or address of the call. 
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   191
    * In case returned remote party value is KNullDesC it means the remote party is
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   192
    * regarded as anonymous.
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   193
    * @since S60 3.2
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   194
    * @param None
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   195
    * @return Remote party address or number
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    */
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   197
    virtual const TDesC& RemoteParty() const = 0;
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   198
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   199
    /**
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    * Returns the remote party name of the call. 
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   201
    * @since S60 5.0
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   202
    * @param None
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   203
    * @return Remote party name. KNullDesC if not available.
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   204
    */
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    virtual const TDesC& RemotePartyName() = 0;
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   206
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   207
    /**
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   208
    * Returns the original dialled party. The original number (e.g. including DTMF) dialled for 
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   209
    * an outgoing call.
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   210
    * Can be different than returned from MCCPCall::RemoteParty().
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   211
    * @since S60 3.2
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   212
    * @param None
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   213
    * @return Dialled party,
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   214
    */
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   215
    virtual const TDesC& DialledParty() const = 0;
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   216
      
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   217
    /**
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    * Return boolean value if the call is forwarded or not.
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    * @since S60 3.2
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    * @param None.
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    * @return ETrue if call is forwarded, else EFalse.
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    */
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    virtual TBool IsCallForwarded() const = 0;
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    /**
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    * Returns boolean value if the call is mobile originated or not.
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    * @since S60 3.2
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    * @param None.
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    * @return ETrue if call is mobile originated, otherwise EFalse.
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    */
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    virtual TBool IsMobileOriginated() const = 0;
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    /**
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    * Returns the state of the call.
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    * @since S60 3.2
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    * @param None.
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    * @return The current state of the call (MCCPCallObserver::TCCPCallState).
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    */
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    virtual MCCPCallObserver::TCCPCallState State() const = 0;
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    /**
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    * Returns UID of the plug-in used for this call
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    * @since S60 3.2
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    * @param None.
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    * @return TUid Implementation UID of the Plug-In
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    */
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    virtual TUid Uid() const = 0;
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    /**
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    * Returns call control caps for this call.
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    * This tells for CCE what call can currently do.
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    * @since S60 3.2
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    * @param None.
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    * @return Call control caps defined in MCCPCallObserver::TCCPCallControlCaps.
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    */
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    virtual MCCPCallObserver::TCCPCallControlCaps Caps() const = 0;      
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    /**
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    * Return if call secure status is specified or not.
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    * @since Series 60 5.0
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    * @param None.
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    * @return TBool ETrue if security is specified, else EFalse.
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    */
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    virtual TBool SecureSpecified() const = 0;
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    /**
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    * Get call's secure status.
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    * @since Series 60 3.2
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    * @param None.
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    * @return TBool ETrue if security is enabled, else EFalse.
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    */
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    virtual TBool IsSecured() const = 0;
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    /**
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    * Set call parameters.
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    * @since S60 3.2
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    * @param aNewParams New call paramater information.
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    * @return none
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    */
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    virtual void SetParameters( const CCCPCallParameters& aNewParams ) = 0;
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    /**
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    * Cet call parameters.
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    * @since S60 3.2
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    * @param None
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    * @return Current call paramater information.
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    */
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    virtual const CCCPCallParameters& Parameters() const = 0;
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    /**
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    * Returns the inband tone associated to an error condition or a state transition of a call.
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    * See defenition for TCCPTone.
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    * @since S60 3.2
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    * @param None.
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    * @return TCCPTone Used tone.
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    */
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    virtual TCCPTone Tone() const = 0;
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    /**
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    * Get forward provider. Must return the already created object if called 
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    * again after initial creation.
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    * @since Series 60 3.2
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    * @param aObserver Observer class for forward events.
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    * @return Pointer to MCCPForwardProvider if forwarding is supported for the call.
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    * In unsupported case does not leave but returns NULL. 
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    * @leave On error case, system error code.
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    */
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    virtual MCCPForwardProvider* ForwardProviderL( const MCCPForwardObserver& aObserver ) = 0;
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    /**
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    * Get transfer provider. Must return the already created object if called 
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    * again after initial creation.
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    * @since Series 60 3.2
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    * @param aObserver Observer class for transfer events
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    * @return Pointer to MCCPTransferProvider if transfer is supported for the call. 
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    * In unsupported case does not leave but returns NULL. 
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    * otherwise returns NULL but does not leave.in case forwarding is not supported for the call.
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    * @leave On error case, system error code.
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    */
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    virtual MCCPTransferProvider* TransferProviderL( const MCCPTransferObserver& aObserver ) = 0;
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    /**
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    * Adds a new observer for MCCECall object. Called in MT call case. In MO 
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    * case observer will be given at call construction. 
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    * @since S60 v3.2
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    * @param aObserver Observer
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    * @return None.
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    * @leave system error if observer adding fails.
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    */
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    virtual void AddObserverL( const MCCPCallObserver& aObserver ) = 0;
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    /**
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    * Remove an observer.
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    * @since S60 v3.2
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    * @param aObserver Observer
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    * @return KErrNone if removed succesfully. 
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    * @return KErrNotFound if observer was not found.
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    */
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    virtual TInt RemoveObserver( const MCCPCallObserver& aObserver ) = 0;
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    };
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#endif // MCCPCALL_H
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// End of File