[Freeswitch-users] Any experience with DTMF from FreeSwitch to Sonus with Vega ATAs?

[Yehavi Bourvine]

Hello Steve,

 I uderstand from paragraph 3.2 in RFC-2833 that the sender may send some
audio of the DTMF while sending the events, until it revognises that this is
a DTMF tone. The 60mSec is what I've been told by Vega engineers.

                               Thanks! __Yehavi:

2011/2/20 Steve Underwood <steveu at coppice.org>

>  On 02/20/2011 03:31 PM, Yehavi Bourvine wrote:
> > Hello,
> >   Anyone has an experience with the above configuration? All sides are
> > marked as RFC-2833 and the Sonus recognises most of the DTMF's twice.
> > The Vega sends both RFC-2833 events and about 60msec of the DTMF tone
> > (according to Vega's engineers it takes it about 60 msec to detect the
> > DTMF tones).
> > According to the RFC this is acceptable. The service provider I am
> > working with says that it shouldn't be like that. Before I waste time
> > in wars, has anybody had this issue and knows whether it is a matter
> > of configuration at the Sonus side?
> >                                    Thanks! __Yehavi:
> Are you saying the Vega sends 60ms of DTMF as audio, then sends RFC2833
> DTMF packets and mutes the audio? In what reading of the RFC is that
> considered appropriate action? In addition, a DTMF detector should
> detect is more like 40ms. 60ms is rather long.
>
> Steve
>
>
> _______________________________________________
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20110220/89227f48/attachment.html