mgw: accept zero-length RTP payload as BFI Mainline OsmoBTS now has an option (rtp continuous-streaming) that causes it to emit an RTP packet every 20 ms without gaps, sending a BFI marker in the form of zero-length RTP payload when it has nothing else to send. These codec-independent BFI markers don't indicate TAF, but this provision is a good start. Accept this BFI packet format in themwi-mgw.

/* simple utility functions for MNCC */

#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include "../include/mncc.h"
#include "../include/gsm48_const.h"

mncc_set_cause(msg, loc, val)
	struct gsm_mncc *msg;
{
	msg->fields |= MNCC_F_CAUSE;
	msg->cause.coding = GSM48_CAUSE_CODING_GSM;
	msg->cause.location = loc;
	msg->cause.value = val;
}