bool CC_SIPCCCall::directTransfer (CC_CallPtr target)
{
    return (CCAPI_Call_directTransfer(callHandle, ((CC_SIPCCCall*)target.get())->callHandle) == CC_SUCCESS);
}
bool CC_SIPCCCall::joinAcrossLine (CC_CallPtr target)
{
    return (CCAPI_Call_joinAcrossLine(callHandle, ((CC_SIPCCCall*)target.get())->callHandle) == CC_SUCCESS);
}
bool CC_SIPCCCall::transferComplete (CC_CallPtr otherLeg,
                                     cc_sdp_direction_t video_pref)
{
    return (CCAPI_Call_transferComplete(callHandle, ((CC_SIPCCCall*)otherLeg.get())->callHandle, video_pref) == CC_SUCCESS);
}