Apparently Aron is not the first to experience such problems. See here: https://freeswitch.org/confluence/display/FREESWITCH/RTP+Issues#RTPIssues-DT... Bote From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of Donny Hardyanto Sent: Friday, 20 March, 2015 08:12 To: FreeSWITCH Users Help Subject: Re: [Freeswitch-users] DTMF missing digits I have done integration with sonus. I am sending rfc2833. Usually the dtmf suppression and fax detection setting on the sonus is the problem. donny On Friday, March 20, 2015, Stanislav Sinyagin <ssinyagin@gmail.com> wrote: how do you send DTMF to sonus? info or rfc2833? On Thu, Mar 19, 2015 at 5:10 PM, Podrigal, Aron <aronp@guaranteedplus.com <javascript:;> > wrote:
I am experiencing problems with sonus dtmf. I tried setting different parameters related to the RTP BUGS listed in switch_types.h but it did not seem to fix the problem.
I have freeswitch ----> [carrier(sonus), ...] -----> freeswitch
freeswitch sends the following digits to our carrier, and is received by the other end (also a freeswitch) missing the digits marked in black. pcap shows the missing digits as being part of the previous packet, so two 1's becomes one 1 with the duration sum of two.
1 - 1 - 2 - 1 - 1 - #
What are the relevant parameters I should set?
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