Thank you.. in fact, last night I did a hack, and it started to work http://www.opensigtran.org/bsc.html I'm doing without osmo-bsc_mgcp at all: after a chanel is being opened, my transcoder just replies the first rtp from bts and keeps this address as endpoint.
I was about to clean the code (my ss7+ca and transcoder), publish it as well as discuss patches/hacks to openbsc I had to do: 1) in my case, OpenBSC makes BTS to talk to a predictable port at transcoder 2) I could not guess your reasons (as well as ways) to configure voice codecs within BSC, and hardcoded them within bssap_handleassingm_req() Hope to prepare a proper letter it in about a week BR, Dmitri On Mon, Sep 2, 2013 at 2:57 PM, Holger Hans Peter Freyther < [email protected]> wrote: > On Sun, Aug 25, 2013 at 07:03:40PM +0400, Dmitri Soloviev wrote: > > Thank you > > > > but there are few things still unclear: > > > - why at A-bis interface BSC issues ip.accessMDCX with ip=0.0.0.0? is > there > > anything configured improperly? > > that is okay. The BTS has the OML/RSL connection. When the BTS is > receivng a 0.0.0.0 on the RSL link, it is supposed to send the RTP > to the IP address of the peer of the RSL link. > > > > - so, UDP port is BSC side is predicted. but an endpoint at BTS side is > > dynamically allocated.. is there a way to inform osmo-BSC_mgcp, or it > just > > replies to RTP from BTS? > > right. The osmo-bsc_mgcp will open two ports for each endpoint. One is > facing toward the BTS and is predicatble, the other will be dynamically > allocated and faces the network. >
