Sorry, I should have made that more clear, this is using 2833. As I mentioned tcpdump shows all the digits coming through as DTMF events on the RTP stream (and all the correct DTMF digits are coming through).
----- Original Message -----
From: "Jerry Richards" <jerry.richards@teotech.com>
To: freeswitch-users@lists.freeswitch.org
Sent: Wednesday, January 13, 2010 12:12:54 PM
Subject: Re: [Freeswitch-users] Cisco media gateway and DTMF
I would recommend you use out-of-band DTMF based on RFC
2833. In band DTMF is usually not reliable in short
bursts.
Jerry
Hi
guys, I'm having an issue with DTMF detection from our cisco 5300 gateways.
DTMF detection has been working great when someone was manually inputing
the digits (ie there are small pauses between the DTMF digits), but when
the other end is sending those digits from say a speed dial or programmed dial
string and can send the DTMF digits one right after the other we start to drop
one or more digits about 75% of the time.
I upgraded to trunk this morning and have tried everything that was
listed on http://wiki.freeswitch.org/wiki/RTP_Issues . I have a
pcap output of the SIP and RTP data, it looks fine to me, I can see the DTMF
payloads coming as they should be. Any ideas? I would be fine
sending or posting the pcap file to someone privately.
Thanks
Dan-
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