src/net/java/sip/communicator/service/protocol/media/AbstractOperationSetTelephonyConferencing.java
/**
     * Invites the callee represented by the specified uri to an already
     * existing call. The difference between this method and createConfCall is
     * that inviteCalleeToCall allows a user to transform an existing 1 to 1
     * call into a conference call, or add new peers to an already established
     * conference.
     *
     * @param uri the callee to invite to an existing conf call.
     * @param call the call that we should invite the callee to.
     * @return the CallPeer object corresponding to the callee represented by
     * the specified uri.
     * @throws OperationFailedException if inviting the specified callee to the
     * specified call fails
     */
Invites the callee represented by the specified uri to an already
existing call. The difference between this method and createConfCall is
that inviteCalleeToCall allows a user to transform an existing 1 to 1
call into a conference call, or add new peers to an already established
conference.

@param uri the callee to invite to an existing conf call.
@param call the call that we should invite the callee to.
@return the CallPeer object corresponding to the callee represented by
the specified uri.
@throws OperationFailedException if inviting the specified callee to the
specified call fails
Invites the callee represented by the specified uri to an already existing call . The difference between this method and createConfCall is that inviteCalleeToCall allows a user to transform an existing 1 to 1 call into a conference call or add new peers to an already established conference . @param uri the callee to invite to an existing conf call . @param call the call that we should invite the callee to . @return the CallPeer object corresponding to the callee represented by the specified uri . @throws OperationFailedException if inviting the specified callee to the specified call fails
public CallPeer inviteCalleeToCall(String uri, Call call)
        throws OperationFailedException
    {
        CalleeAddressT calleeAddress = parseAddressString(uri);
        @SuppressWarnings("unchecked")
        MediaAwareCallT mediaAwareCallT = (MediaAwareCallT) call;
        mediaAwareCallT.getConference().setConferenceFocus(true);
        return doInviteCalleeToCall(calleeAddress, mediaAwareCallT);
    }
public CallPeer inviteCalleeToCall ( String uri , Call call ) throws OperationFailedException { CalleeAddressT calleeAddress = parseAddressString ( uri ) ; @ SuppressWarnings ( "unchecked" ) MediaAwareCallT mediaAwareCallT = ( MediaAwareCallT ) call ; mediaAwareCallT . getConference ( ) . setConferenceFocus ( true ) ; return doInviteCalleeToCall ( calleeAddress , mediaAwareCallT ) ; }
Invites the callee represented by the specified uri to an already
 existing call.
Invites the callee represented by the specified uri to an already existing call .