[asterisk-users] SPA 3000 won't relay DTMF to doorphone

Julio Arruda jarruda-asterisk at jarruda.com
Mon Jan 15 14:06:17 MST 2007


Doug Crompton wrote:
> I am not sure what you are asking? The problem is that rfc2833 does not
> play well with the spa-3000 and Asterisk. I am not sure if it is limited
> to just the spa3k. There is a bug causing this that has been documented.
> Google "spa3000 dtmf bug asterisk" for more info. The bottom line is that
> you need to use sip info (inband dtmf) if you desire dtmf transfer to the
> other party after the call has completed. Such as you call a bank, or you
> call your Asterisk voicemail, or your door lock which is actuated by dtmf.
> If none of these are of interest and you would rather have the dtmf
> features of Asterisk, then use rfc2833. you can't have both!


SIP INFO is not the same as Inband DTMF, that is why I'm asking.


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