mncc: Enable in-band signalling for early media

Besides sending the alerting request we should inform the
MS that there is in-band information now. We do not seem
to export these flags in protocol/gsm_04_08.h so hardcode
them for now (until I come up with good names for them).

Related: OS#1784

Change-Id: I80b1e1f4ca045bd63536476702a5812f27d9b36d
changes/29/2029/3
Holger Hans Peter Freyther 6 years ago committed by Holger Freyther
parent 4649746798
commit 9d796ff156
  1. 10
      src/mncc.c

@ -194,12 +194,20 @@ static void mncc_call_leg_connect(struct call_leg *_leg)
static void mncc_call_leg_ring(struct call_leg *_leg)
{
struct gsm_mncc out_mncc = { 0, };
struct mncc_call_leg *leg;
OSMO_ASSERT(_leg->type == CALL_TYPE_MNCC);
leg = (struct mncc_call_leg *) _leg;
mncc_send(leg->conn, MNCC_ALERT_REQ, leg->callref);
mncc_fill_header(&out_mncc, MNCC_ALERT_REQ, leg->callref);
/* GSM 04.08 10.5.4.21 */
out_mncc.fields |= MNCC_F_PROGRESS;
out_mncc.progress.coding = 3; /* Standard defined for the GSMßPLMNS */
out_mncc.progress.location = 1; /* Private network serving the local user */
out_mncc.progress.descr = 8; /* In-band information or appropriate pattern now available */
mncc_write(leg->conn, &out_mncc, leg->callref);
}
static void mncc_call_leg_release(struct call_leg *_leg)

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