diff options
Diffstat (limited to 'openbsc/src/libmsc/msc_ifaces.c')
| -rw-r--r-- | openbsc/src/libmsc/msc_ifaces.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/openbsc/src/libmsc/msc_ifaces.c b/openbsc/src/libmsc/msc_ifaces.c index 3dbe7c3e9..e54f1e969 100644 --- a/openbsc/src/libmsc/msc_ifaces.c +++ b/openbsc/src/libmsc/msc_ifaces.c @@ -195,6 +195,7 @@ static int conn_iu_rab_act_cs(struct gsm_trans *trans) struct mgcpgw_client *mgcp = conn->network->mgcpgw.client; struct msgb *msg; struct msgb *msg_dlcx; + uint16_t bts_base; /* HACK. where to scope the RAB Id? At the conn / subscriber / * ue_conn_ctx? */ @@ -203,9 +204,14 @@ static int conn_iu_rab_act_cs(struct gsm_trans *trans) conn->iu.mgcp_rtp_endpoint = mgcpgw_client_next_endpoint(conn->network->mgcpgw.client); - /* HACK: the addresses should be known from CRCX response - * and config. */ - conn->iu.mgcp_rtp_port_ue = 4000 + 2 * conn->iu.mgcp_rtp_endpoint; + + /* This will calculate the port we assign to the BTS via AoIP + * assignment command (or rab-assignment on 3G) The BTS will send + * its RTP traffic to that port on the MGCPGW side. The MGCPGW only + * gets the endpoint ID via the CRCX. It will do the same calculation + * on his side too to get knowledge of the rtp port. */ + bts_base = mgcp->actual.bts_base; + conn->iu.mgcp_rtp_port_ue = bts_base + 2 * conn->iu.mgcp_rtp_endpoint; /* Since we know now the endpoint number, we enforce a DLCX on tha * endpoint in order to ensure that this endpoint is not occupied |