Links to some sip traces WITH the freeswitch logs in all these cases would be most helpful, Since your FreeSWITCH is behind nat, Are you setting the ext-sip-ip and ext-rtp-ip along with the local-network-acl? (Also you must prefix the ext-*-ip elements with autonat: if you wish to dynamically lie about the IP depending if the endpoint is behind nat with FS or outside the nat ie thats what local-network-acl is for) On Wed, Jul 16, 2014 at 7:47 AM, Kees Jan Koster <kjkoster@gmail.com> wrote:
Dear All,
I am trying to figure out why I see what I see.
When I make a call using the same codec (say, PCMA/8000 on both sides), FreeSwitch rewrites the RTP stream's IP address and port for me. That I like, since my FreeSwitch is behind NAT.
From the logs:
2014-07-16 12:32:36.815907 [INFO] switch_rtp.c:3738 Auto Changing port from 1.2.3.4:4040 to 5.6.7.8:4040 2014-07-16 12:32:36.995906 [INFO] switch_rtp.c:3738 Auto Changing port from 9.10.11.12:12345 to 13.14.15.16:41730
Now, when I try to use two different codecs, this behaviour stops.
From the logs and without changing the configuration or restarting FreeSwitch:
2014-07-16 12:35:36.495902 [INFO] switch_rtp.c:3738 Auto Changing port from 1.2.3.4:4042 to 5.6.7.8:4042
The other line is missing and ngrep reveals how FreeSwitch stubbornly sends RTP audio to the wrong port and IP address.
Further testing shows:
PCMA -> PCMA: IP/port is rewritten SILK -> PCMA: IP/port is *not* rewritten GSM -> PCMA: IP/port is rewritten Speex -> PCMA: IP/port is *not* rewritten
How can I have transcoding *and* RTP IP/port rewriting work at the same time, please?
Is this a per-codec thing?
-- Kees Jan
http://java-monitor.com/ kjkoster@kjkoster.org +31651838192
Change is good. Granted, it is good in retrospect, but change is good.
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