Hi Steven, thanks for helping! What "device" do you think is the problem? Are you talking about the Upstream? I don't think he can be the problem since it is a very large ISP in Germany with lots of clients not complaining ;)

...

Upstream >rfc2833> FreeSWITCH >rfc2833> Asterisk

I can't give you the raw pcap files, but I hope the information put up here: http://3js.de/20110304/ contains the information you need. freeswitch@internal> version FreeSWITCH Version 1.0.head (git-7847289 2011-02-19 23-38-04 +0100) BTW: this freeswitch box is a virtual machine, running on citrix xen dom0. could this be a problem? Best regards, Johannes On 04.03.2011, at 05:43, Steven Ayre wrote:

Are you running the latest version?

It appears the dtmf is failing a sanity check and getting ignored as a result, possibly as a result of the device sending the wrong rtp timestamps. Can you get a tcpdump of the rtp stream?

Steve on iPhone

On 3 Mar 2011, at 22:50, Johannes Jakob <jjj@3js.de> wrote:

...

Hi,

what do I have to do to get RFC2833 DTMF passed to the client in an inbound scenario like this:

Upstream >rfc2833> FreeSWITCH >rfc2833> Asterisk

?

The Upstream is sending the DTMF tones correctly:

--- 329 2.114845 UPSTREAMIP FS_IP RTP EVENT 62 Payload type=RTP Event, DTMF Eight 8 ---

FreeSWITCH isn't logging much of the dtmf stuff, even with loglevel debug:

http://pastebin.freeswitch.org/15541

... Set 2833 dtmf receive payload to 101 ... 2011-03-03 23:29:59.498466 [ERR] switch_rtp.c:282 Failed DTMF sanity check. ...

User's directory entry includes:

<param name="dtmf-type" value="rfc2833"/> <param name="pass-rfc2833" value="true"/>

I tried adding those in the gateway profile as well, no change.

On the asterisk box I don't see those rtpevents in the pcap trace anymore, they just vanish on the FS box.

Can somebody help me out here? Or point me to the right wiki page? http://wiki.freeswitch.org/wiki/Sofia_Configuration_Files#DTMF doesn't really tell me, what the options do and http://wiki.freeswitch.org/wiki/DTMF is something different.

Thanks and bye,

Johannes _______________________________________________ FreeSWITCH-users mailing list FreeSWITCH-users@lists.freeswitch.org http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org

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There was a one day period in the past two weeks that DTMF was a bit busted. So always git pull. /b On Mar 4, 2011, at 2:33 PM, Johannes Jakob wrote:

Hi,

Just to give feedback:

problem solved by updating to last git head, although I didn't find a significant change in the revision history about dtmf stuff except this one: http://fisheye.freeswitch.org/changelog/freeswitch.git/?cs=b53a68484361c9581...

FreeSWITCH Version 1.0.head (git-7847289 2011-02-19 23-38-04 +0100) => FreeSWITCH Version 1.0.head (git-8fe24a2 2011-03-04 12-28-41 -0600)

Thanks anyways for your thoughts!

Greets, Johannes