[Freeswitch-users] DTMF passthrough delay / pass_rfc2833 problems

[Kristian Kielhofner]

Dmitry,

  If your ATA devices aren't clamping the DTMF quickly enough you may
have to just use inband.

On Wed, Mar 7, 2012 at 4:29 AM, Dmitry Sytchev <kbdfck at gmail.com> wrote:
> Hi all
>
> I'd like to know is there a way to make freeswitch pass RFC2833 dtmf right
> after it receives first packets as in pass_rfc2833 mode, but still recognize
> DTMF for bind_meta_app or bind_digit_action? Seems when i enable
> pass_rfc2833, bind_meta_app stops working.
>
> When we use ATA endpoints like Linksys PAP2T or SPA8000 without
> pass_rfc2833, ATAs sends little piece of inband DTMF followed by RFC2833
> packets. While inband piece is immediately forwarded by FS, RFC2833 packets
> get relayed only after receiving end packets from endpoint, or at least
> delayed, effectively making double DTMF on other side.
>
> We can't use no-media or proxy-media mode as we need to deal with in-call
> features activated by DTMF :(
>
> What can be done to solve this issues?
>
>
>
> --
> Best regards,
>
> Dmitry Sytchev,
> IT Engineer
>
> _________________________________________________________________________
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>
> 
> 
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-- 
Kristian Kielhofner