If there is no RTP then the TDM should be generating its own audio. Try MTU = 80 IDLE_FLAG = 0xFF On Fri, Feb 10, 2012 at 3:41 AM, Holger Freyther <holger@freyther.de> wrote:
Anthony Minessale <anthony.minessale@...> writes:
what does /etc/wanpipe/wanpipe1.conf look like? and which rev of FS and wanpipe driver are you on. What ptime is the sip traffic?
Hi,
the wanpipe1.conf is here[1], I am using wanpipe 3.5.24, I started with a FreeSWITCH from around 20111010, but I retested with the a version from 20120205.
What I have done so far to try to understand things: fs_cli> originate freetdm/1/nr &echo(1000) (audio quality is good in both ways, so FreeTDM by itself appears to work)
On a 'normal' SIP call (the path to ISDN produces the skips): I used the 'bug' application to record the audio file and it had no skips. Wireshark's RTP Analysis shows no packet loss, little jitter, just a bit of clock drifting.
To me it looks like if FreeTDM doesn't get the audio samples in time and then 'nothing' is transmitted. This is why I asked about inspecting the state of the jitterbuffer.
regards holger
[1] http://paste.lisp.org/display/127633
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