[Freeswitch-users] SBC bridged call: DTMF delay

Tue Sep 18 00:32:23 MSD 2012

On 17/09/12 19:58, Alex Zarubin wrote:
> FS in SBC mode, ‘external’ and ‘internal’ sip calls are bridged. DTMF
> sequence ‘11234567890’ gets passed with a delay, - 2 sec between the
> last digit ‘0’ is received and sent (see log below). There is a
> consistent 500ms+ between ‘Queue digit delay of 40ms’ and ‘Send start
> packet’ for the next digit.
>
> Haven’t found a way to fix it so far (wiki, user list, parameters such
> as auto-rtp-bugs), help will be appreciated. CentOS 6.1, Xen, rfc2833.

Have you tried setting pass_rfc2833=true?

http://wiki.freeswitch.org/wiki/Variable_pass_rfc2833

Regards,