Hello Harald,

On Wed, 29 Jul 2009 15:48:32 +0200, "Harald Welte" laforge@gnumonks.org wrote:

I'm telling you, OpenBSC's RTP proxy works fine. I've just made another call and there are no drop-outs of .8 seconds or anything like that.

I am sure that the proxy is working, I never doubt that. I guess for some reason Wireshark is just missing the data. I was joking about Windows versus Linux performance, but maybe this was not clear enough.

As all it uses is the sockets API, i.e. the very same calls that the input/ipaccess.c module already uses, I think it should be very easy to make it build using the posix compatibility of cygwin.

I tried it in the meantime. No problem at all. The git version works as expected and Wireshark does not miss any packets here, each call is about 30 seconds. I tried it with EFR and FR, Wireshark can save the RTP payload, for EFR I had to convert the data first so that they fit to the GSM 06.35 reference implementation (they use a strange format which stores every bit into two bytes). For FR, Toast can convert the payload immediately. Tested on Windows XP and cygwin, Wireshark and bsc_hack running on the same machine.

Best regards, Dieter