${REDIRECTING_CALLEE_SEND_MACRO} Macro to call before sending a redirecting update to the callee ${REDIRECTING_CALLEE_SEND_MACRO_ARGS} Arguments to pass to ${REDIRECTING_CALLEE_SEND_MACRO} ${REDIRECTING_CALLER_SEND_MACRO} Macro to call before sending a redirecting update to the caller ${REDIRECTING_CALLER_SEND_MACRO_ARGS} Arguments to pass to ${REDIRECTING_CALLER_SEND_MACRO} ${CONNECTED_LINE_CALLEE_SEND_MACRO} Macro to call before sending a connected line update to the callee ${CONNECTED_LINE_CALLEE_SEND_MACRO_ARGS} Arguments to pass to ${CONNECTED_LINE_CALLEE_SEND_MACRO} ${CONNECTED_LINE_CALLER_SEND_MACRO} Macro to call before sending a connected line update to the caller ${CONNECTED_LINE_CALLER_SEND_MACRO_ARGS} Arguments to pass to ${CONNECTED_LINE_CALLER_SEND_MACRO}