static void mrcp_sofia_on_call_receive(mrcp_sofia_agent_t   *sofia_agent,
									   nua_handle_t         *nh,
									   mrcp_sofia_session_t *sofia_session,
									   sip_t const          *sip,
									   tagi_t                tags[])
{
	int offer_recv = 0, answer_recv = 0, offer_sent = 0, answer_sent = 0;
	const char *local_sdp_str = NULL, *remote_sdp_str = NULL;
	mrcp_session_descriptor_t *descriptor = NULL;

	tl_gets(tags, 
			NUTAG_OFFER_RECV_REF(offer_recv),
			NUTAG_ANSWER_RECV_REF(answer_recv),
			NUTAG_OFFER_SENT_REF(offer_sent),
			NUTAG_ANSWER_SENT_REF(answer_sent),
			SOATAG_LOCAL_SDP_STR_REF(local_sdp_str),
			SOATAG_REMOTE_SDP_STR_REF(remote_sdp_str),
			TAG_END());
	
	if(!sofia_session) {
		sofia_session = mrcp_sofia_session_create(sofia_agent,nh);
		if(!sofia_session) {
			nua_respond(nh, SIP_488_NOT_ACCEPTABLE, TAG_END());
			return;
		}
	}

	if(remote_sdp_str) {
		sdp_parser_t *parser = NULL;
		sdp_session_t *sdp = NULL;
		apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Remote SDP\n%s", remote_sdp_str);

		parser = sdp_parse(sofia_session->home,remote_sdp_str,(int)strlen(remote_sdp_str),0);
		sdp = sdp_session(parser);		
		descriptor = mrcp_descriptor_generate_by_sdp_session(sdp,NULL,sofia_session->session->pool);
		sdp_parser_free(parser);
	}

	if(!descriptor) {
		nua_respond(nh, SIP_400_BAD_REQUEST, TAG_END());
		return;
	}

	mrcp_session_offer(sofia_session->session,descriptor);
}
static void mrcp_sofia_on_call_receive(mrcp_sofia_agent_t   *sofia_agent,
									   nua_handle_t         *nh,
									   mrcp_sofia_session_t *sofia_session,
									   sip_t const          *sip,
									   tagi_t                tags[])
{
	apt_bool_t status = FALSE;
	const char *remote_sdp_str = NULL;
	mrcp_session_descriptor_t *descriptor;

	if(!sofia_session) {
		sofia_session = mrcp_sofia_session_create(sofia_agent,nh);
		if(!sofia_session) {
			nua_respond(nh, SIP_488_NOT_ACCEPTABLE, TAG_END());
			return;
		}
	}

	descriptor = mrcp_session_descriptor_create(sofia_session->session->pool);

	tl_gets(tags, 
			SOATAG_REMOTE_SDP_STR_REF(remote_sdp_str),
			TAG_END());

	if(remote_sdp_str) {
		sdp_parser_t *parser = NULL;
		sdp_session_t *sdp = NULL;
		apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Remote SDP "APT_NAMESID_FMT"\n%s",
			sofia_session->session->name,
			MRCP_SESSION_SID(sofia_session->session),
			remote_sdp_str);

		parser = sdp_parse(sofia_session->home,remote_sdp_str,(int)strlen(remote_sdp_str),0);
		sdp = sdp_session(parser);
		status = mrcp_descriptor_generate_by_sdp_session(descriptor,sdp,NULL,sofia_session->session->pool);
		sdp_parser_free(parser);
	}

	if(status == FALSE) {
		nua_respond(nh, SIP_400_BAD_REQUEST, TAG_END());
		return;
	}

	mrcp_session_offer(sofia_session->session,descriptor);
}